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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Koblenz

About Koblenz

Koblenz for Porsche

Koblenz parts for Porsche models are typically chosen as practical repair and refurbishment components that help restore function and day-to-day usability. At Design911 you can browse Koblenz alongside other brands, then filter by Porsche model and system to narrow down to what you need.

A Quick Look at Koblenz

Koblenz information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where Koblenz is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side or position, and connector or mounting type where relevant.

  • Typical reasons to choose these parts include resolving age-related deterioration, replacing worn mechanical components, and getting the car reliably back on the road without overcomplicating the job.
  • Common symptoms that lead to replacement include noise, vibration, premature wear, or intermittent operation, often linked to incorrect prior fitment or associated parts not being changed at the same time.
  • Always match Porsche model/year and cross-check part numbers where possible, and plan to renew related seals, hardware, or consumables during the same job.
  • Before replacing parts, diagnose the root cause carefully — a single new component will not cure issues caused by wider system wear, misalignment, or installation problems.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Engine Rebuild Parts — Engine rebuild parts from Koblenz are used during planned strip-downs or when symptoms point to internal wear, such as low compression, excessive oil use, persistent leaks, or abnormal noises. Where applicable, they are renewed together with related bearings, chains, guides, gaskets, and hardware while the engine is apart to avoid repeat labour and to improve reliability after the rebuild.

  • Before committing to major engine work, use compression and leak-down testing, oil and filter inspection, and borescope checks to confirm that a rebuild and new parts are justified.
  • When the engine is open, many specialists also replace hard-to-reach wear items "while you are in there" to reduce the risk of further tear-downs.

Engine Cylinders / Liners / Pistons — Cylinders, liners, and pistons are core components that are replaced when scoring, wear, or damage prevents proper sealing and reliable running. In Porsche rebuilds they are typically changed for issues such as low compression, excessive oil consumption, piston slap, or after overheating or detonation events, and may also be upgraded where changes in displacement or durability are desired.

  • Decisions on these parts should follow measured checks for scoring, ovality, and ring condition, plus an assessment of the oiling and cooling systems that may have caused the damage.
  • Ensure pistons, rings, and cylinders are correctly matched as a set and that clearances are within specification during assembly.

Camshafts — Camshafts from Koblenz are fitted when existing cams show wear, pitting, or damage, or when changing profiles to alter how the Porsche engine delivers its power. Replacement is common where there is top-end noise linked to cam wear, or during performance and reliability-focused valvetrain rebuilds.

  • Oil quality and pressure are critical — cam wear is often linked to lubrication issues or debris in the oil, so the root cause should be addressed at the same time.
  • New camshafts are often installed with fresh followers or rockers to prevent accelerated wear on the new lobes.

Interior & Accessories — Koblenz interior parts and accessories are typically used to replace worn or damaged trim and touch points, or to support refurbishment projects where the Porsche cabin is being refreshed. They help restore correct fit and function and can improve day-to-day practicality without significantly changing the character of the car.

  • Expect to address common age-related issues such as broken clips, rattling panels, worn finishes, or sticky switches when refurbishing the interior.
  • Use appropriate trim tools and replace missing or damaged fasteners during installation to minimise new squeaks or rattles.

Dial Faces — Dial faces associated with Koblenz-supported instrument work are generally used during cluster refurbishment to restore legibility and appearance or to refresh tired original parts. They are typically replaced when markings have faded, peeled, or warped, or when the style is being updated to match a retrimmed interior.

  • Take care when removing and refitting needles, as this can affect how accurately the gauges read if not positioned correctly.
  • Work cleanly to avoid dust or fingerprints under the dial face, which can be very noticeable once the cluster is reassembled.

Explore Koblenz at Design911

View the current Koblenz range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 33 to 48 (of 161 products)
<< 2 3 4 5 >>
96442407571
Product Information
Product Information
Gear lever knob shift kit Singer look - Modern  Line. 

koblenz

Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

This conversion kit is an optimal addition to every backdate project and all 964/993 owners who strive for the "Singer look" for their vehicle.

The shift knob impresses with its high-quality appearance and workmanship. 

Kit Includes:

  • Shift knob with engraved 5-speed or 6-speed schemes and metal trim ring
  • Gaiter
  • Shift cup

100% Plug & Play
This kit can be easily mounted and replaces the standard lever with boot, with modifications needed. 
A reversion to the factory components is guaranteed at any time.



Related reference numbers
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96442407571
964424075028YR
96442407502H05
964424075027JX
964424075027VX
964424075026XL
964424075029YL
964424075028ZL
964424075058YR
964424075056XL
96442407505H24
964424075053QN
964424075008YR
96442407505B50

The product you are viewing cross references to these numbers
96442407570
Product Information
Product Information
Gear lever knob shift kit Singer look - Classic Line. 

koblenz

Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

This conversion kit is an optimal addition to every backdate project and all 964/993 owners who strive for the "Singer look" for their vehicle.

The shift knob impresses with its high-quality appearance and workmanship. 

Kit Includes:

  • Shift knob with engraved 5-speed or 6-speed schemes and metal trim ring
  • Gaiter
  • Shift cup

100% Plug & Play
This kit can be easily mounted and replaces the standard lever with boot, with modifications needed. 
A reversion to the factory components is guaranteed at any time.



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

96442407570
964424075028YR
96442407502H05
964424075027JX
964424075027VX
964424075026XL
964424075029YL
964424075028ZL
964424075058YR
964424075056XL
96442407505H24
964424075053QN
964424075008YR
96442407505B50

The product you are viewing cross references to these numbers
Special Offer
96442407572
Product Information
Product Information
Gear lever knob shift kit Singer look - Classic Line Exclusive

koblenz

Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

This conversion kit is an optimal addition to every backdate project and all 964/993 owners who strive for the "Singer look" for their vehicle.

The shift knob impresses with its high-quality appearance and workmanship. This "Exclusive" version has been upgraded with a metal trim ring

Kit Includes:

  • Shift knob with engraved 5-speed or 6-speed schemes and metal trim ring
  • Gaiter
  • Shift cup

100% Plug & Play
This kit can be easily mounted and replaces the standard lever with boot, with modifications needed. 
A reversion to the factory components is guaranteed at any time.



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

96442407572
964424075028YR
96442407502H05
964424075027JX
964424075027VX
964424075026XL
964424075029YL
964424075028ZL
964424075058YR
964424075056XL
96442407505H24
964424075053QN
964424075008YR
96442407505B50

The product you are viewing cross references to these numbers
90154210
Product Information
Product Information
Lightweight front 5mm Plexiglass door window, GREY TINT.

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front door window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Diagram ref no 36

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

90154210
90154210135
90154210235

The product you are viewing cross references to these numbers
90154210
Product Information
Product Information
Lightweight front 5mm Plexiglass door window, BLUE TINT.

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front door window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Diagram ref no 36

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

90154210
90154210135
90154210235

The product you are viewing cross references to these numbers
90154210
Product Information
Product Information
Lightweight front 5mm Plexiglass door window, Clear

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front door window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Diagram ref no 36

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

90154210
90154210135
90154210235

The product you are viewing cross references to these numbers
90154210
Product Information
Product Information
Lightweight front 5mm Plexiglass door window, GREEN TINT

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front door window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Diagram ref no 36

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

90154210
90154210135
90154210235

The product you are viewing cross references to these numbers
99354510713
Product Information
Product Information
Lightweight rear 5mm Plexiglass window, 
Without hole for rear wiper

koblenz

Fits:
Porsche 964 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight rear window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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99354510713
99354510705
99354510706
99354510708
99354510712
99354510709
99354510707
99354510713
96454510704
96454510705
96454510706
96454510707
96454510708
96454510710

The product you are viewing cross references to these numbers
9115451050
Product Information
Product Information
Lightweight rear 5mm Plexiglass window, 

Fits:
Porsche 911 - 1965 to 1989 Coupe
Porsche 911 (930) turbo 1978 to 1989

Lightweight rear window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Diagram ref no 32

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9115451050
91154510502
91154510700
91154510707
91154510500

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91154310
Product Information
Product Information
Lightweight rear 5mm Plexiglass 1/4 window, GREY TINT
Fixed rear window

koblenz

Fits:
Porsche 911 - 1978 to 1989 Coupe
Porsche 911 (930) turbo 1978 to 1989
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - Coupe - 1994 to 1998

Lightweight rear quarter light window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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91154310
91154310102
91154310202
96454310100
96454310200

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91154310
Product Information
Product Information
Lightweight rear 5mm Plexiglass 1/4 window, BLUE TINT
Fixed rear window

koblenz

Fits:
Porsche 911 - 1978 to 1989 Coupe
Porsche 911 (930) turbo 1978 to 1989
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - Coupe - 1994 to 1998

Lightweight rear quarter light window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154310
91154310102
91154310202
96454310100
96454310200

The product you are viewing cross references to these numbers
91154310
Product Information
Product Information
Lightweight rear 5mm Plexiglass 1/4 window, Clear.
Fixed rear window

koblenz

Fits:
Porsche 911 - 1978 to 1989 Coupe
Porsche 911 (930) turbo 1978 to 1989
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - Coupe - 1994 to 1998

Lightweight rear quarter light window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154310
91154310102
91154310202
96454310100
96454310200

The product you are viewing cross references to these numbers
91154310
Product Information
Product Information
Lightweight rear 5mm Plexiglass 1/4 window, GREEN TINT
Fixed rear window

koblenz

Fits:
Porsche 911 - 1978 to 1989 Coupe
Porsche 911 (930) turbo 1978 to 1989
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - Coupe - 1994 to 1998

Lightweight rear quarter light window - made from Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.

Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154310
91154310102
91154310202
96454310100
96454310200

The product you are viewing cross references to these numbers
91154251
Product Information
Product Information
Lightweight front 5mm Plexiglass 1/4 window, Grey Tint

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front quarterlight door window - made from 5mm Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154251
91154251100
91154251200

The product you are viewing cross references to these numbers
91154251
Product Information
Product Information
Lightweight front 5mm Plexiglass 1/4 window, Blue Tint

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front quarterlight door window - made from 5mm Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154251
91154251100
91154251200

The product you are viewing cross references to these numbers
91154251
Product Information
Product Information
Lightweight front 5mm Plexiglass 1/4 window, Clear

Fits:
Porsche 911 - 1969 to 1989 Coupe
Porsche 911 (930) turbo 1975 to 1977
Porsche 964 - 1989 to 1994 Coupe
Porsche 993 - 1994 to 1998 Coupe

Lightweight front quarterlight door window - made from 5mm Plexiglas.
Over 2 axes thermo formed and tempered for perfect shape. These come with polished edges, are scratch resistant and UV protected.
Available with 5 mm thickness in clear, green, grey and blue tinted.
Fits all 911 / 964 / 993 Coupe standard doors or racing doors which use the standard window frame.
Made in Germany.

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

91154251
91154251100
91154251200

The product you are viewing cross references to these numbers
DISPLAYING 33 to 48 (of 161 products)
<< 2 3 4 5 >>