Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 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://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png +443456003478 https://www.design911.co.uk Facebook Instagram

Gearbox Parts

Filter by brand
DISPLAYING 1 to 16 (of 29 products)
1 2
Special Order item
012311311D
Product Information
Product Information
Circlip for Syncroniser ring, 1st and 2nd gear.
Sold each.

porsche

Fits:
Porsche 986 Boxster 1997-04 (G86.00 / G86.01) - 1st and 2nd gear
Porsche 968 1992-95 (G44.000) - 1st gear

Click 'Zoom in' for large parts diagram.
Diagram ref no 7 (for 986 Boxster)
Diagram ref no 37 (for 968)

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Related, superseded, cross reference or alternative numbers for comparison.

012311311D
012311311A
012311311D
012311247F
012311247E
012311247C

The product you are viewing cross references to these numbers
Special Order item
99905906400
Product Information
Product Information
Differential outer bearing, Left. 50 x 90 x 21.7

porsche

Fits:
Porsche 911 1987-89
Porsche 911 Turbo 1975-89
Porsche 968 1992-95
Porsche 964 C2 / C4 1989-94
Porsche 993 C2 1994-98
Porsche 986 Boxster S 2000-04
Porsche 996 C2 / C4 1998-05
Porsche 996 Turbo GT2 2001-05
Porsche 996 GT3 2000-05
Porsche 997.1 Turbo / GT2 / GT2 RS 2007-09
Porsche 997.2 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007-11

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

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Related, superseded, cross reference or alternative numbers for comparison.

99905906400
99905906400

The product you are viewing cross references to these numbers
99905906400/1
Product Information
Product Information
Differential outer bearing, Left. 50 x 90 x 21.7
This OE Match differential outer bearing is a replacement left-side differential bearing for selected Porsche 911, 964, 993, 986 Boxster, 996, 997, and 968 models. It is designed to match the original-style fitment and function, helping support correct differential operation and drivetrain reliability.

Fits:
Porsche 911 1987 - 1989
Porsche 911 Turbo 1975 - 1989
Porsche 968 1992 - 1995
Porsche 964 C2 / C4 1989 - 1994
Porsche 993 C2 1994 - 1998
Porsche 986 Boxster S 2000 - 2004
Porsche 996 C2 / C4 1998 - 2005
Porsche 996 Turbo GT2 2001 - 2005
Porsche 996 GT3 2000 - 2005
Porsche 997.1 Turbo / GT2 / GT2 RS 2007 - 2009
Porsche 997.2 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007 - 2011

Diagram ref no 11

The differential outer bearing supports the rotating differential assembly within the gearbox or transaxle housing. It helps maintain correct alignment, smooth rotation, and controlled movement of the differential components as engine power is transferred through the transmission to the drive wheels.

Functions
•  Supports the differential assembly inside the gearbox / transaxle
•  Helps maintain correct differential alignment
•  Allows smooth rotation under drivetrain load
•  Supports reliable power transfer to the drive wheels
•  Helps reduce vibration, noise, and excessive internal movement
•  Replaces worn, noisy, damaged, or failed differential bearings
•  OE Match replacement for gearbox, transaxle, or differential repair.

Why Replace This Part?
Differential bearings are exposed to constant load, heat, gear oil, vibration, and high-speed rotation. Over time, the bearing can wear, pit, develop play, become noisy, or fail due to contamination, lack of lubrication, or age. A worn differential bearing may cause whining noises, rumbling, vibration, metal debris in the oil, drivetrain play, or gearbox damage if left unresolved. Replacing the bearing helps restore smooth differential operation and protects surrounding transmission components.

When to Replace This Part
•  There is whining, rumbling, or bearing noise from the gearbox / differential area
•  Excessive differential play or movement is found during inspection
•  Metal particles or bearing debris are found in the gearbox oil
•  The bearing is worn, pitted, loose, or damaged
•  The gearbox or transaxle is being rebuilt
•  The differential has been removed or serviced
•  Preventative replacement is being carried out during transmission overhaul.

Where it fits on the car
This bearing fits on the left-side outer differential bearing position within the gearbox or transaxle assembly. It forms part of the differential support system and should be installed according to the factory transmission layout and bearing preload procedure.

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

99905906400
99905906400

The product you are viewing cross references to these numbers
Special Order item
016301299A
Product Information
Product Information
Dowel sleeve for the manual transmission end cover. 

Sold individually; x2 units required per vehicle. 

Fits:
Models equipped with 5-speed manual transmission

Porsche 924 2.0L 1981-85*
Porsche 924S 2.5L 1986-88
Porsche 924 Turbo 1979-85

Porsche 944 2.5L 1982-88
Porsche 944 2.7L 1989-91
Porsche 944 S / S2 1987-91
Porsche 944 Turbo 2.5L 1986-91

Porsche 968 3.0L 1992-95

Diagram ref. 7.

*NOTE: This part is only compatible with 924 models produced from 1981 onwards that feature the conventional shift pattern. It will not fit earlier 5-speed transmissions with the dog-leg layout (where first gear is positioned directly below reverse).

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

016301299A
016301299
016301299A

The product you are viewing cross references to these numbers
Special Order item
01E311220
Product Information
Product Information
Four point bearing.

porsche

Fits:
Porsche 968 1992-95 (G44.00)
Manual gearbox

Click 'Zoom in' for large parts diagram,
Diagram ref no 29

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

01E311220
01E311220

The product you are viewing cross references to these numbers
01E311220/1
Product Information
Product Information
Four point bearing.

oematch

Fits:
Porsche 968 1992-95 (G44.00)
Manual gearbox

Click 'Zoom in' for large parts diagram,
Diagram ref no 29

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

01E311220
01E311220

The product you are viewing cross references to these numbers
Special Order item
01E311375
Product Information
Product Information
Four point bearing.

porsche

Fits:
Porsche 968 1992-95 (G44.00)
Manual gearbox

Click 'Zoom in' for large parts diagram,
Diagram ref no 43

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

01E311375
01E311375

The product you are viewing cross references to these numbers
01E311375/1
Product Information
Product Information
Four point bearing.

oematch

Fits:
Porsche 968 1992-95 (G44.00)
Manual gearbox

Click 'Zoom in' for large parts diagram,
Diagram ref no 43

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

01E311375
01E311375

The product you are viewing cross references to these numbers
CMS.968.EC
Product Information
Product Information
A great way to return oil back to your 968 transaxle and better lubricate your input shaft gears at the same time.

Comes with custom -8AN fitting, O ring and set screws.
Special Order item
93111617700
Product Information
Product Information
Gearbox Housing Inspection Cap.

porsche

Fits:
Porsche 924 Turbo / GT 1976-85
Porsche 924 S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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

93111617700
93111617700

The product you are viewing cross references to these numbers
Special Order item
016311113C::1
Product Information
Product Information
Gearbox Input Seal. 24.9x40x8mm


Fits:
For cars with MANUAL transmission
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95

Diagram ref no 31

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

016311113C
016311113C
012311113B

The product you are viewing cross references to these numbers
01E409131A/1
Product Information
Product Information
For those who wish to add strength to their 968 transaxle - we offer our billet aluminum side cover complete with ring gear thrust bolt, nut and washer. Uses factory hardware and seals.

For all Porsche 968 6 speed transmissions '92'-'95. (G44/00, 01E)

Our design features include:

A ring gear thrust bolt to reduce ring gear deflection under load
Cross drilled oil passageways for the differential bearing

Replaces part 01E.409.131A

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

01E409131A
01E409131A
01E409131

The product you are viewing cross references to these numbers
90008214201L
Product Information
Product Information
HEX HEAD BOLT M12X1,5X110MM (extra long)

This Item is an Original Porsche Part found by using our original Porsche Part Number Search. If you are ordering parts via this method it is your responsibility to make sure that you enter and purchase the correct products for your vehicle. Please only use the searched product if you are sure of the part numbers as parts cannot be returned if ordered incorrectly.

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

90008214201L
91137504300
90008214201

The product you are viewing cross references to these numbers
Special Order item
012311123
Product Information
Product Information
Needle bearing, manual transmission.

porsche

Fits:
Porsche 968 1992-95 
G4400 Manual gearbox

Click 'Zoom in' for large parts diagram.
Diagram ref no 30


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

012311123
012311123

The product you are viewing cross references to these numbers
Special Order item
01E301279
Product Information
Product Information
Oil dip tray.

porsche

Fits:
Porsche 968 1992-95
Manual gearbox, G4400

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

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

01E301279
01E301279

The product you are viewing cross references to these numbers
01E409143E
Product Information
Product Information
Ring gear and pinion shaft. 


Fits:
Porsche 968 - 1992 to 1995

Available with different gear ratios - example - 10:33 (number of teeth on each gear) - 3.33:1 (gear ratio)

10:33 - 3.33:1
8:34 - 4.25:1
8:35 - 4.38:1

Diagram ref no 7



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

01E409143E
01E409143E

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 29 products)
1 2
Also found on these pages
About Gearbox Parts

High-Quality Gearbox Parts for Smooth, Precise and Long-Lasting Transmission Performance

Gearbox parts are at the heart of your vehicle’s transmission system, ensuring power is transferred smoothly from the engine to the wheels. These components—including gears, synchros, bearings, selector mechanisms, seals and shafts—must operate with precision to provide crisp gear changes, reduced drivetrain noise and optimal driving performance. Whether you’re rebuilding a worn transmission, upgrading for performance, or repairing specific issues, choosing the right gearbox parts is essential for long-term reliability.

What Gearbox Parts Do

Transmission components work together to manage torque delivery and gear selection.

Their key roles include:

  • Enabling smooth gear shifting through synchroniser assemblies
  • Transferring power efficiently from engine to drivetrain
  • Maintaining correct gear alignment via bearings, shafts and selectors
  • Reducing friction and heat with precision-machined internal components
  • Ensuring responsive and reliable gear engagement under all driving conditions
  • Supporting high-load and performance driving with upgraded materials and tolerances

When these parts are in good condition, the gearbox operates quietly, engages gears cleanly and delivers consistent performance.

Why Gearbox Parts Commonly Fail

Gearboxes experience constant mechanical load, friction and temperature cycles. Over time, internal components can weaken or wear out due to:

  • Synchro ring wear causing notchy or difficult gear engagement
  • Bearing failure leading to whining, vibration or misalignment
  • Gear tooth damage from aggressive shifting or lubrication issues
  • Worn selector forks or linkages affecting precision and feel
  • Oil contamination accelerating wear on bearings and synchros
  • Leaking seals causing low lubrication levels
  • High-mileage fatigue in shafts, pins and internal hardware

Even small failures can quickly escalate into major transmission issues if not addressed in time.

Why You Should Replace Worn Transmission Components

Replacing ageing or damaged gearbox parts with high-quality, precision-engineered alternatives designed to match original performance standards ensures your transmission remains smooth, durable and reliable.

Benefits of replacing worn parts include:

  • Restored smooth gear changes and reduced notching
  • Improved drivetrain efficiency and power delivery
  • Reduced internal wear and noise
  • Enhanced lifespan of other transmission components
  • Prevention of costly gearbox failure
  • Confidence in both daily driving and performance applications

A refreshed gearbox not only improves driving enjoyment but also protects the significant investment in your vehicle’s drivetrain.

Popular Models