Connecting Rod

Connecting Con Rods.
SET OF 6

Fits:
Porsche Boxster 986 2.5L 1997-99
Porsche Boxster 986 2.7L 1999-02
Porsche Boxster S 986 3.2L 1999-02
Porsche Boxster 986 2.7L 2003-04
Porsche Boxster S 986 3.2L 2003-04
Porsche Boxster 987 2.7L 2005 -08/08
Porsche Boxster 987 3.2/3.4L 2005-08/08
Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01
Porsche Cayman 2.7L 987C 2006-08
Porsche Cayman S 3.4L 987C 2005-08

Diagram Ref No 9.

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Related, superseded, cross reference or alternative numbers for comparison.

99610397502

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Connecting con rods
SET OF 6

Fits:
Porsche Boxster 986 2.5L 1997-99
Porsche Boxster 986 2.7L 1999-02
Porsche Boxster S 986 3.2L 1999-02
Porsche Boxster 986 2.7L 2003-04
Porsche Boxster S 986 3.2L 2003-04
Porsche Boxster 987 2.7L 2005 -08/08
Porsche Boxster 987 3.2/3.4L 2005-08/08
Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01
Porsche Cayman 2.7L 987C 2006-08
Porsche Cayman S 3.4L 987C 2005-08

CP-Carrillo connecting rods are fully machined from a proprietary 4330m alloy forging for strength and durability. Rods are available with 2 types of bolts: The standard WMC-S6 bolt with a UTS of 220ksi and our upgraded CARR-S6 bolt with a UTS of 285ksi. The CARR upgraded bolt is a good choice if planning on revving the engine higher than 8500rpm.

All our bolts are manufactured with asymmetrical threads, each thread has a slightly different design than the previous giving the bolts an evenly distributed thread engagement. This helps increasing the clamp load and fatigue life of the fasteners

Diagram Ref No 9.

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Related, superseded, cross reference or alternative numbers for comparison.

99610397502

The product you are viewing cross references to these numbers

Connection Rod Bolt 3/8 CARR Bolt 1.600UHL S6 or CARR6 Head Marking
Price is Each


Diagram ref no 10.

Connection Rod Bolt 3/8 x 24 WMC Bolt 1.600UHL H6 or WMC6 Head Marking.
Price is Each


Diagram Ref No 10.

Porsche 986/987/996/997 M9 Rod Bolt Kit.
A must when rebuilding any 1997-2008 M96 or M97 engine to prevent costly rod bolt failures.
SET OF 12



Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster MKI 2005-08
Porsche 987C Cayman MKI 2005-08
Porsche 996 Carrera 1998-05
Porsche 997 Carrera 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 11.

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Related, superseded, cross reference or alternative numbers for comparison.

99710311501

The product you are viewing cross references to these numbers

Connection Rod Bolt.

The Connecting Rod Bolt is a critical engine fastener that secures the connecting rod cap to the connecting rod, ensuring reliable performance under extreme conditions. Designed to withstand the intense forces of combustion and high RPM, this bolt provides the proper clamping force to keep your engine’s rotating assembly precise and stable.
Connection rod bolts are torque-to-yield fasteners, meaning they stretch slightly when tightened and should not be reused. For this reason, replacing them during an engine rebuild, performance upgrade, or repair is essential to avoid fatigue or failure.
Sold Each.
x12 Required Per Engine.

Fits:

• Porsche Cayenne V6 3.6L Petrol 300Hp
• Porsche Cayenne S V8 4.8L Petrol 400HP
• Porsche Cayenne GTS V8 4.8L Petrol 400HP
• Porsche Cayenne Turbo V8 4.8L Petrol 500HP
• Porsche Cayenne Turbo S V8 4.8L Petrol 550HP

Cars With Engine Codes:
4802 / 4852 / CFTB / CFT / CYXA / CYX / CURA / CUR / CXZA / CXZ

• Porsche Macan S Petrol 3.0L V6 340Bhp
• Porsche Macan GTS Petrol 3.0L V6 360Bhp
• Porsche Macan Turbo 3.6L V6 400Bhp

Cars With Engine Codes:
CTMA / CTM / CTLA / CTL / DCNA / DCN / DHKA / DHK

• Porsche Panamera V6 3.6L 2WD
• Porsche Panamera 4 V6 3.6L 4WD
• Porsche Panamera S V8 4.8L
• Porsche Panamera 4S V8 4.8L
• Porsche Panamera GTS V8 4.8L
• Porsche Panamera Turbo V8 4.8L
• Porsche Panamera Turbo S V8 4.8L
• Porsche Panamera V6 3.6L 2WD (310Hp)
• Porsche Panamera 4 V6 3.6L 4WD (310Hp)
• Porsche Panamera S V6 Turbo 3.0L 2WD (420Hp)
• Porsche Panamera S V6 Turbo 3.0L 2WD Executive
• Porsche Panamera 4S V6 Turbo 3.0L 4WD (420Hp)
• Porsche Panamera 4S V6 Turbo 3.0L 4WD Executive
• Porsche Panamera GTS V8 4.8L 4WD (440Hp)
• Porsche Panamera Turbo V8 4.8L (520Hp)
• Porsche Panamera Turbo V8 Executive
• Porsche Panamera Turbo S V8 4.8L

Cars With Engine Codes:
4820 / 4840 / 4870 / CXPA / CXRA / CXR / CWBA / CWB / CWCA / CWC / 4620 / 4640 / CWAA / CXNA / CWDA / CWD / CWFA / CWF

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04

Cars With Engine Codes:
9620 / 9621 / 9622 / 9623 / 9624

• Porsche Boxster 987 2.7L 2005 -08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08

Cars With Engine Codes:
9625 / 9626 / 9720 / 9721 / 9722

• Porsche Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08

Cars With Engine Codes:
9720 / 9721 / 9722

• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005

Cars With Engine Codes:
9601 / 9602 / 9604/ 9603

• Porsche 997 Carrera 2 3.6L 2005>>
• Porsche 997 Carrera 2S 3.8L 2005>>
• Porsche 997 Carrera 4 3.6L 2005>>
• Porsche 997 Carrera 4S 3.8L 2005>>

Cars With Engine Codes:
9701 / 9605

• Porsche Cayenne S/GTS 4.8L 2007>>
• Porsche Cayenne Turbo / Turbo S 4.8L 2007>>

Cars With Engine Codes:
4801 / 4851

What This Product Does:
The connecting rod bolt is a critical engine fastener used to secure the connecting rod cap to the connecting rod in Porsche engines. These bolts hold the rod bearings in place and ensure the connecting rods remain firmly attached to the crankshaft during operation.

Functions:

• Provides the clamping force to keep the connecting rod and cap tightly secured.
• Withstands extreme stress from combustion, RPM, and load.
• Maintains precise engine clearances for smooth rotation of the crankshaft.
• Helps prevent catastrophic engine failure by keeping the bottom end components locked in place.
  
  

Symptoms Of A Failing Or Stretched Connecting Rod Bolt:
While connecting rod bolts are not usually “wear items,” they can stretch, fatigue, or fail over time, especially in high-performance or rebuilt engines.
Signs of trouble include:

• Engine knocking or rattling from the bottom end.
  
• Loss of oil pressure due to bearing movement.
  
• Metal shavings in the oil (from bearing or crank damage).
  
• Catastrophic engine failure if a rod bolt breaks under load.
  
• During rebuilds: bolts showing stretch beyond spec when measured.
  
  

Why Replacement Matters:
Connecting rod bolts operate under immense pressure and constant stress. Even though they are small components, their role is critical — a single failure can cause severe engine damage. Because these bolts are torque-to-yield fasteners, they are designed to stretch slightly when tightened. This makes them single-use only; once removed, they should always be replaced.

Diagram Ref No 11

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

99710311501

The product you are viewing cross references to these numbers

Connection Rod Bolt. 12 per engine. Price is for each.



Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster MKI 2005-08
Porsche 987C Cayman MKI 2005-08
Porsche 996 Carrera 1998-05
Porsche 997 Carrera 2005-08

Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.

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

99710311501

The product you are viewing cross references to these numbers