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Porsche > 996 (911) (1997-2005) > Engine Rebuild Parts >

Crankshaft & Parts

Crankshaft & Parts

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Crankshaft sealing ring. Porsche Boxster 986 / Boxster 987 / 987C Cayman / 996 / 997 - 99911347540, 172.630
3
Crankshaft sealing ring. Porsche Boxster 986 / Boxster 987 / 987C Cayman / 996 / 997
99911347540/1::1
Product Information
Product Information
Crankshaft sealing ring. 40 x 62 x 10.

elring

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 997 C2 / C4 / C2S / C4S 2005-08

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Diagram ref no 4.

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99911347540
99911347540
172.630

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Crankshaft sealing ring. Porsche Boxster 986 / Boxster 987 / 987C Cayman / 996 / 997 - 99911347540, 172.630
3
Crankshaft sealing ring. Porsche Boxster 986 / Boxster 987 / 987C Cayman / 996 / 997
Special Order item
99911347540
Product Information
Product Information
Crankshaft sealing ring.
40 x 62 x 10.

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 997 C2 / C4 / C2S / C4S 2005-08

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Diagram ref no 4.

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99911347540
99911347540
172.630

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Crankshaft Standard (STD). Porsche 993 / 996 turbo - 99310202101, 99310202102, 993102021BX - 993 102 021
2
Crankshaft Standard (STD). Porsche 993 / 996 turbo
99310202102/1
Product Information
Product Information

Crankshaft  Standard (STD)
The standard size crankshafts are key rotating components used in Porsche 993 engines and 996 Turbo models. 

Fits:

  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97
  • Porsche 993 (911) TURBO 1994-96
  • Porsche 993 (911) GT2 1994-97
  • Porsche 993 (911) TURBO S 1994-97
  • Porsche 996 TURBO 2000-05
  • Porsche 996 GT2 2001-05

Diagram ref no 1

The crankshaft delivers the precise journal dimensions, balance and strength needed for the high-performance flat-six architecture. Designed to maintain original tolerances, a standard-size crankshaft ensures correct bearing clearances, smooth rotation and reliable power delivery—crucial for both road and track-driven Porsches.

For any engine rebuild, restoration or major service involving these models, choosing a correctly machined and precision-balanced standard size crankshaft is essential to restoring authentic performance and long-term reliability.

What These Standard Size Porsche Crankshafts Do

Designed to work at the core of the bottom end assembly, these crankshafts:

  • Convert piston movement into rotational torque to power the drivetrain
  • Maintain exact journal diameters for correct bearing oil film clearance
  • Provide engine balance across all RPM ranges—crucial for high-revving Porsche flat-six engines
  • Facilitate internal lubrication via precision oil galleries
  • Support smooth, strong and consistent power delivery Ensure structural integrity under boost conditions in 996 turbo engines

These crankshafts are engineered to perform reliably under demanding thermal, mechanical and load environments typical of Porsche performance models.

Why Porsche 993 & 996 turbo Crankshafts Can Fail

Even though Porsche flat-six crankshafts are exceptionally robust, years of use, high RPM and turbocharged forces can lead to failure. Common causes include:

  • Oil starvation or low pressure causing severe journal scoring
  • Bearing shell failure damaging journals and lubrication paths
  • Metal fatigue from aggressive driving, detonation or over-boost scenarios
  • Overheating weakening the crankshaft material
  • Contamination in oil scoring journals and reducing bearing life
  • Imbalance from previous poor machining or unbalanced accessories
  • High mileage fatigue affecting torsional stability

Symptoms of failure include persistent vibration, knocking noises, falling oil pressure, bearing debris in oil or visible wear during teardown.

Why You Should Replace a Worn Crankshaft

Replacing a damaged crankshaft with a precision-built standard size alternative engineered to match original performance characteristics is crucial to achieving a reliable and long-lasting Porsche engine rebuild.

Key benefits of replacement include:

  • Restored correct bearing clearances for stable oil pressure
  • Smoother rotation and reduced engine vibration
  • Improved reliability for high-load, high-RPM and turbocharged conditions
  • Prevention of catastrophic bottom-end failures
  • Extended service life for bearings, rods and pistons
  • Enhanced performance consistency and engine smoothness

With Porsche 993 and 996 Turbo engines now highly valued by enthusiasts, a precision crankshaft is foundational to any proper rebuild or restoration.



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99310202102
99310202101
99310202102
993102021BX

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Crankshaft Standard (STD). Porsche 996 3.6L / 997.1 Carrera 3.6L / 3.8L 2005-08 - 99610201204, 99610201202, 99610201203 - 996 102 012
5
Crankshaft Standard (STD). Porsche 996 3.6L / 997.1 Carrera 3.6L / 3.8L 2005-08
99610201204/1
Product Information
Product Information
Standard Size Crankshaft (STD)
The standard size (STD) engine crankshaft is a critical rotating component for Porsche 996 Carrera and 997.1 Carrera / Carrera S models equipped with the M96/M97 engines

Fits:

  • Porsche 996 C2 3.6L 09/01-2005 (engine code M9603)
  • Porsche 996 C4 3.6L 09/01-2005  (engine code M9603)
  • Porsche 996 C4S 3.6L 09/01-2005  (engine code M9603)
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08  (engine code M9605)
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08  (engine code M9701)
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08  (engine code M9605)
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08 (engine code M9701)

Diagram ref no 1

Designed to maintain original journal dimensions and deliver balanced, dependable rotation, this crankshaft ensures proper bearing clearances, stable lubrication and smooth power delivery—essential for both everyday driving and spirited performance use.

Whether restoring a high-mileage engine, repairing bottom-end damage or conducting a complete power unit rebuild, this precision crankshaft is fundamental to achieving long-term reliability and authentic Porsche performance.

What the Crankshaft Does

This crankshaft performs multiple key functions at the heart of the Porsche flat-six engine:

  • Transforms piston motion into smooth, controlled rotational torque
  • Maintains exact journal sizing for correct oil clearance and bearing support
  • Provides balanced rotation across the engine’s full RPM range
  • Supports consistent lubrication through precision oil galleries
  • Ensures durable, stable bottom-end operation under high loads
  • Forms the structural core of the M96/M97 rotating assembly

A correctly sized, properly balanced crankshaft is essential for engine health, power consistency and long-term performance.

Why Porsche Crankshafts Can Fail

While Porsche’s M96/M97 engines are known for performance, certain conditions can cause premature crankshaft wear or failure. Common causes include:

  • Oil starvation leading to bearing knock and journal scoring
  • High mileage fatigue causing cracks or out-of-round journals
  • Worn or failed bearings damaging crankshaft surfaces
  • Contaminated lubrication accelerating wear on critical journals
  • Overheating compromising crankshaft strength
  • Imbalance due to previous machining or improper rebuild work
  • Harmonic vibration intensified by worn flywheel or pulley components

Symptoms often include low oil pressure, knocking noises, metal debris in oil filters, engine vibration or difficulty maintaining consistent RPM.

Why You Should Replace a Worn Crankshaft

Replacing a damaged crankshaft with a precision-built, standard size replacement designed to match Porsche performance characteristics restores the reliability and durability required from the M96/M97 engine.

Key benefits include:

  • Restored journal accuracy and correct bearing clearance
  • Improved lubrication and oil pressure stability
  • Smooth, balanced rotation across all RPM ranges
  • Prevention of major bottom-end failures
  • Enhanced reliability for road and performance driving
  • Extended lifespan of rods, pistons, bearings and related components

For 996 and 997.1 owners, a correct standard-size crankshaft is vital to a successful and lasting engine rebuild.



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99610201204
99610201204
99610201202
99610201203

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Crankshaft Tension Sleeve. Porsche 911 / 924S / 964 / 993 / 968 / Boxster / Cayman / 996 / 997 / 991 - 90009503100, PAF013334
2
Crankshaft Tension Sleeve. Porsche 911 / 924S / 964 / 993 / 968 / Boxster / Cayman / 996 / 997 / 991
Special Order item
90009503100
Product Information
Product Information
Crankshaft Tension Sleeve

porsche

Fits:
Porsche 911 Carrera 3.2L 1984-89
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95
Porsche 964 1989-94
Porsche 993 1994-98
Porsche 996 Turbo / GT2 / GT3 1999-05
Porsche 997 Carrera 2009-12
Porsche 997 Turbo / GT2 2007-09
Porsche 997 Turbo / GT2 RS 2009-14
Porsche 997 GT3 2007-13
Porsche 981 Boxster 2013>>
Porsche 987 Boxster 2009-12
Porsche 981C Cayman 2014>>
Porsche 987C Cayman 2009-13
Porsche 991 Carrera / 991 Turbo / 991 GT3

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Diagram ref no 1A

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90009503100
90009503100
PAF013334

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Crankshaft. Porsche 996 3.6L / 997 Carrera 3.6L / 3.8L 05-08 - 99610201204, 99610201202, 99610201203
5
Crankshaft. Porsche 996 3.6L / 997 Carrera 3.6L / 3.8L 05-08
Special Order item
99610201204
Product Information
Product Information
Crankshaft. Porsche 997 Carrera 3.6L / 3.8L 05-08

Fits:

  • Porsche 996 C2 3.6L 09/01-2005 (engine code M9603)
  • Porsche 996 C4 3.6L 09/01-2005  (engine code M9603)
  • Porsche 996 C4S 3.6L 09/01-2005  (engine code M9603)
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08  (engine code M9605)
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08  (engine code M9701)
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08  (engine code M9605)
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08 (engine code M9701)

Diagram ref no 1

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99610201204
99610201204
99610201202
99610201203

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Lock snap ring for brass drive pinion 2.4mm / Number 0 - 90110214800
3
Lock snap ring for brass drive pinion 2.4mm / Number 0
Special Order item
90110214800
Product Information
Product Information
Lock snap ring for brass gear. Number 0

porsche

Size: 2.4mm

Fits:
Porsche 356
Porsche 911
Porsche 912
Porsche 964
Porsche 993
Porsche 914
Porsche 996 Turbo / GT3
Porsche 997 Turbo / GT3

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Diagram ref no 11

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90110214800
90110214800

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Main Crankshaft Bearing Shell (0.25mm Oversize). Porsche 911 SC / 3.2L / 959 / 964 / 993 / 996 - 93010113251
4
Main Crankshaft Bearing Shell (0.25mm Oversize). Porsche 911 SC / 3.2L / 959 / 964 / 993 / 996
Special Order item
93010113292
Product Information
Product Information
Main crankshaft bearing shell.
Sold individually - 12 required per engine. 

Exterior Measurement: Standard. 
Interior Measurement: +0.25mm Oversize. 

Fits: 
Porsche 911 SC 3.0L 1978-1983 
Porsche 911 3.2L 1984-1989 
Porsche 959 2.8L 1987-1988 
Porsche 964 1989-1994 (All models inc. RS/Turbo) 
Porsche 993 1994-1998 (All models inc. RS/Turbo/GT2) 
Porsche 996 3.6L Turbo / GT2 2000-2005 
Porsche 996 3.6L GT3 >>2001 (360BHP Variant Only) 

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Diagram ref no 23

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93010113292
93010113251

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Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249
3
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
Special Order item
0PB105249
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11. 

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5. 

Related reference numbers
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0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249 - 81-34819-00
3
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
0PB105249/1
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11. 

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5. 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249 - POR94810121202#F/4
3
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
0PB105249/4
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11. 

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5. 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
Short block engine for Porsche 996 3.4L M96.01 / 02 / 04 - 996100996TX, 996100996
2
Short block engine for Porsche 996 3.4L M96.01 / 02 / 04
Special Order item
996100996TX
Product Information
Product Information
Short engine comprising of crankcase, connecting rods, crankshaft, oil pump, timing chains. The engine block is sold on an exchange
exchange
porsche

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £5870.49 will be held and then refunded when the old one is returned.

Fits:
M96.01 / M96.02 / M96.04
Porsche 996 3.4L Manual
Porsche 996 3.4L Tiptronic


    PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

996100996TX
996100996TX
996100996

The product you are viewing cross references to these numbers
Short block engine for Porsche 996 3.4L M96.01 / 02 Cars with X51 - 996100951tx, 996100951
2
Short block engine for Porsche 996 3.4L M96.01 / 02 Cars with X51
Special Order item
996100951TX
Product Information
Product Information
Short engine comprising of crankcase, connecting rods, crankshaft, oil pump, timing chains. The engine block is sold on an exchange
exchange
porsche

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £5985.57 will be held and then refunded when the old one is returned.

Fits:
M96.01 / M96.02 cars with factory X51
Porsche 996 3.4L X51 Manual
Porsche 996 3.4L X51 Tiptronic


    PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

996100951TX
996100951tx
996100951

The product you are viewing cross references to these numbers
Short block engine for Porsche 996 3.6L M96.03 - 996100996UX, 996100996
Short block engine for Porsche 996 3.6L M96.03
Special Order item
996100996UX
Product Information
Product Information
Short engine comprising of crankcase, connecting rods, crankshaft, oil pump, timing chains. The engine block is sold on an exchange
exchange

porsche

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £6446.00 will be held and then refunded when the old one is returned.

Fits:
M96.03
Porsche 996 3.6L Manual
Porsche 996 3.6L Tiptronic


    PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

996100996UX
996100996UX
996100996

The product you are viewing cross references to these numbers
Short block engine for Porsche 996 3.6L M96.03 car with X51 - 996100996XX, 996100996
Short block engine for Porsche 996 3.6L M96.03 car with X51
Special Order item
996100996XX
Product Information
Product Information
exchange
Short engine comprising of crankcase, connecting rods, crankshaft, oil pump, timing chains. The engine block is sold on an exchange

porsche

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £6446.00 will be held and then refunded when the old one is returned.

Fits:
M96.03 cars with X51
Porsche 996 3.6L X51 Manual
Porsche 996 3.6L X51 Tiptronic


    PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

996100996XX
996100996XX
996100996

The product you are viewing cross references to these numbers
Silicone and mineral bearing grease pack, Plastigauge.
1
Silicone and mineral bearing grease pack, Plastigauge.
PLA008
Product Information
Product Information
Silicone and mineral bearing grease.

plastigauge

3G Mineral Grease: To coat journal prior to use of Plastigauge 

3G Silicone Grease: To apply to surface of shell

Lubricants to assist with the measurement of clearance in automotive bearings.

Plastigauge Precision Clearance Gauges



DISPLAYING 17 to 32 (of 32 products)
1 2
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About Crankshaft & Parts

Precision Crankshafts & Components – Engine Balance, Power, and Reliability for Porsche Models

The crankshaft is the backbone of every Porsche engine, responsible for transforming the reciprocating motion of pistons into smooth, rotational power. It endures immense pressure, heat, and mechanical load — making precision, strength, and perfect balance essential for sustained performance.

At Design911, we stock a comprehensive range of high-precision crankshafts and related components, including main bearings, thrust washers, oil seals, dowels, bolts, and pulleys. Each component is engineered from motorsport-grade materials to deliver optimal strength, fatigue resistance, and rotational balance for both classic and modern Porsche engines.

Whether you’re carrying out a complete engine rebuild or restoring a vintage air-cooled flat-six, our manufacturer-quality crankshaft parts ensure durability, smooth operation, and maximum efficiency under all driving conditions.

What Do Crankshafts and Crankshaft Parts Do?

The crankshaft plays a central role in the internal combustion process, converting piston motion into rotational energy that powers the drivetrain. Supporting components like bearings, seals, and bolts keep it perfectly aligned and lubricated for friction-free motion.

Core Functions:

  • Convert linear piston motion into rotational energy to drive the vehicle.
  • Maintain engine balance and smoothness across the RPM range.
  • Support precise oil flow and bearing lubrication for reduced friction.
  • Ensure stable load distribution, protecting connecting rods and bearings.

High-precision crankshaft assemblies are fundamental to maintaining Porsche’s signature smoothness, responsiveness, and reliability.

Why Do Crankshafts Fail?

Even the strongest crankshaft components can wear or fail over time due to extreme forces, lubrication issues, or age-related fatigue. Left unaddressed, these issues can lead to major engine damage.

Common Causes of Failure Include:

  • Oil starvation, leading to bearing wear and journal scoring.
  • Excessive vibration from imbalance or worn dampers.
  • Cracks or fatigue stress caused by high RPM or detonation.
  • Bearing seizure due to contamination or low oil pressure.
  • Improper torque or alignment during rebuilds.

Replacing worn or damaged components during an engine rebuild restores smooth rotation, lubrication integrity, and power delivery.

Why Replace with Precision-Engineered Crankshaft Components?

Using high-quality, precision-balanced crankshaft parts is vital to maintaining your Porsche’s performance and reliability. Upgrading or replacing aged components improves both powertrain smoothness and long-term engine life.

Key Benefits:

  • Restores rotational balance and smooth power delivery.
  • Prevents bearing failure and vibration from worn journals or misalignment.
  • Improves oil control and lubrication efficiency.
  • Enhances reliability and engine lifespan under load or high-RPM conditions.
  • Crafted from forged or billet materials for strength and durability.
  • Precision-fit design for both air-cooled and water-cooled Porsche engines.

Engine rebuilders and performance specialists trust these components to achieve race-grade precision with road-going reliability.

Highlights:

  • Comprehensive range of crankshafts, bearings, bolts, and seals for Porsche engines.
  • Precision-balanced components for smooth and efficient rotation.
  • Motorsport-grade materials ensure exceptional fatigue resistance.
  • Ideal for classic rebuilds, performance upgrades, and preventive maintenance.
  • Perfect fitment across air-cooled and modern Porsche models.
  • Restores original power delivery, efficiency, and reliability.

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