Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Bearings / Bearing Retaining Plates / Bushes
By OE Match
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
The OE Match Flywheel-End Shaft Bearing (Pinion Bearing) for 915 Transmission (99911014601/1) is a high-quality replacement transmission bearing designed to support and accurately locate the pinion shaft within the Porsche 915 gearbox. Manufactured to OE specifications for fit, precision and durability, this bearing plays a critical role in maintaining proper shaft alignment, smooth gear operation and efficient power transfer throughout the transmission.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
Diagram Ref No 28
Constructed from premium-grade bearing steel and engineered to withstand high rotational loads, torque forces and continuous gearbox operation, the flywheel-end shaft bearing helps minimise friction while supporting the pinion shaft under demanding driving conditions. Correct bearing performance is essential for preserving gearbox reliability, shift quality and transmission longevity.
What This Product Does:
- Supports the pinion shaft within the 915 transmission.
- Maintains precise shaft alignment during operation.
- Reduces friction between rotating gearbox components.
- Helps ensure smooth gear engagement and operation.
- Supports efficient power transfer through the transmission.
- Minimises wear on gears, shafts and related components.
- Contributes to overall gearbox performance and durability.
Symptoms Of Wear Or Failure:
- Whining, humming or rumbling noises from the transmission.
- Increased gearbox vibration.
- Excessive shaft movement or internal transmission play.
- Rough or noisy operation while driving.
- Difficulty maintaining smooth gear engagement.
- Metal particles found in gearbox oil.
- Premature wear of gears and associated transmission components.
- Increased transmission operating temperatures.
- Severe gearbox damage if bearing failure progresses.
Why Replacement Matters:
- The flywheel-end shaft bearing operates under constant rotational loads and is subjected to significant torque forces, heat and vibration throughout its service life. Over time, bearing surfaces can wear, lubrication can deteriorate and internal clearances can increase, reducing the bearing's ability to support the pinion shaft accurately.
- A worn bearing can allow excessive shaft movement, affecting gear mesh accuracy and placing additional stress on gears, synchronisers and other internal transmission components. If left unresolved, bearing failure can lead to accelerated gearbox wear, increased noise and potentially extensive transmission damage requiring a full rebuild.
- Replacing a worn flywheel-end shaft bearing restores correct shaft support, improves gearbox smoothness and helps protect valuable transmission components from premature wear. An OE Match replacement provides factory-style fitment, precision manufacturing and dependable long-term durability, ensuring reliable performance and helping preserve the operation of your Porsche 915 transmission.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911014601
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
The OE Match Four Point Bearing is a high-quality precision-engineered bearing designed to support both radial and axial loads within critical Porsche mechanical assemblies. Manufactured to OE specifications for fit, performance and durability, this four-point contact bearing is designed to provide smooth rotational movement while maintaining accurate component alignment under varying operating conditions.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
Diagram Ref No 18
Featuring a specialised internal design that allows load distribution across four contact points, this bearing can accommodate forces acting in multiple directions while reducing friction and wear. Constructed from high-grade bearing steel and engineered for long service life, it plays a vital role in maintaining the reliability and efficiency of the components in which it is installed.
What This Product Does:
- Supports rotating components under radial and axial loads.
- Maintains precise alignment within mechanical assemblies.
- Reduces friction between moving parts.
- Distributes loads evenly across multiple contact points.
- Allows smooth and efficient rotational movement.
- Minimises wear on associated components.
- Contributes to reliable operation and long-term durability.
Symptoms Of Wear Or Failure:
- Grinding, rumbling or humming noises during operation.
- Excessive vibration from the affected assembly.
- Increased mechanical resistance or rough movement.
- Component misalignment or excessive play.
- Premature wear of surrounding components.
- Overheating caused by increased friction.
- Reduced performance of the supported assembly.
- Metal particles or bearing debris found during inspection.
- Complete bearing seizure in severe failure cases.
Why Replacement Matters:
- Bearings are subjected to constant rotational forces, load changes, vibration and environmental contamination throughout their service life. Over time, wear of the bearing races, rolling elements or cage assembly can reduce bearing performance and compromise component alignment.
- A failing bearing can increase friction, generate excessive heat and place additional stress on surrounding mechanical components. If left unresolved, bearing failure can result in significant damage to shafts, housings and related assemblies, leading to costly repairs and unexpected downtime.
- Replacing a worn four point bearing restores smooth operation, maintains correct load support and helps protect associated components from premature wear. An OE Match replacement provides factory-style fitment, precision manufacturing and dependable long-term durability, ensuring reliable performance and maintaining the engineering standards expected of your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905203000
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L

Fits:
Porsche 911 1974-86 (915 Gearbox)
Click 'Zoom in' to see the diagram.
Diagram Ref no 29.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905204300
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 / 356A 1950-59 (G 11 001 >> 25 000)
Porsche 356 / 356A 1950-59 (716/0/1/2/3, 716/4/5)
Porsche 356B / 356C 1960-65
Porsche 911 SC / Carrera 1974-86
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91530239906
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
Cylindrical Roller Bearing, Engineered to match the original equipment’s dimensions, load rating and fitment, this bearing provides a direct-fit replacement for the factory unit. This bearing supports the main shaft or input/output shaft of certain Porsche manual gearboxes. It ensures smooth rotation, proper alignment of the transmission internals and helps reduce friction and wear during operation. It used near the collar nut or locknut area.
Fits:
Porsche 911 3.2L 1984-86 for 4 and 5-speed models
Porsche 911 Turbo 3.0L 1975-77
Porsche 911 Turbo 3.3L 1978-88 (4 speed)
Porsche 924 1976-85 Only 5 speed transmission
Porsche 924 Carrera GT 1981
Porsche 924 Turbo 1979-84
Diagram ref no 23
Transmission bearings support rotating shafts and gear clusters under high loads and speeds. Over time wear, misalignment or contamination in the gearbox can cause bearing failure, leading to increased friction, vibration, noise or even gearbox damage. Correct bearing fit is essential for longevity and precision of the transmission.
When to replace:
• During any gearbox overhaul or rebuild, especially when shafts or collar nuts are removed.
• If you notice unusual gearbox noises (rumbling, growling) or shaft play during inspection.
• Whenever replacing major gearbox components—such as synchros, shafts, or other bearings—as a preventive maintenance measure, ensuring optimal alignment and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93030239101
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 911 1972-86
Porsche 911 (930) Turbo 1975-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911002500
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 912E 4CYL 1976

Fits:
Porsche 911 1972-96
Porsche 912E 1976
Click 'Zoom in' to see the diagram.
Diagram Ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99920110700
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
This needle roller bearing, also known as a needle cage bearing, is used in the Porsche 915 type manual transmission. In the gearbox, needle roller bearings support and permit rotation of internal components by minimizing friction between moving parts.
Fits:
Porsche 911 1974 - 1986 4 & 5 speed
Diagram Ref no 7.
This OE Match version meets original specification dimensions and tolerances to ensure proper fit and function when replacing worn or damaged bearings.
The needle roller bearing provides smooth rotational support for transmission shafts and gears. It helps reduce friction and wear between the main shaft and the transmission housing or gear assemblies, allowing gearsets to spin freely and reliably under load. This results in consistent gear engagement, reduced drivetrain stress, and a smoother shifting experience.
Function
• Friction Reduction: Needle rollers reduce surface contact friction between rotating components.
• Load Handling: Supports radial loads within the transmission at critical gear positions.
• Smooth Operation: Promotes precise and efficient gear movement with minimal resistance.
• Long Service Life: Engineered to resist wear and maintain structural integrity under continued transmission stresses.
Over time, the original needle roller bearings can become worn, leading to increased friction, gear noise, and premature wear of transmission components. A failing bearing may cause rough shifting, gear chatter, or accelerated gearbox wear. Replacing the worn bearing with an OE Match part ensures proper internal support, restores smooth gearbox operation, and helps protect more expensive transmission components from damage.
Replace this bearing if you notice:
• Unusual gearbox noise, especially when changing gears
• Rough or notchy shifting feel
• Vibration or unusual resonance from the transmission
• Sluggish gear engagement
• During full gearbox rebuild or overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99920147000
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L

Fits:
Porsche 911 1974-86 (915 Gearbox)
Click "Zoom in" to see the diagram.
Diagram Ref no 19.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911003200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 914 (1970-1976)
- Porsche 912E 4CYL 1976
This tapered roller bearing, also known as a differential carrier bearing, is used in the rear output assemblies of the differential and manual transmission on various classic Porsche models. Engineered as a precise OE replacement, it meets the original Porsche specifications for dimensions, load capacity, and tolerance. The bearing installs directly without modification, restoring proper carrier alignment, support, and smooth drivetrain operation.
Sold individually.
Fits:
Porsche 911 1969-1971 * with magnesium pressure cast housing
Porsche 911 1972 - 1989
Porsche 912 1969 * with magnesium pressure cast housing
Porsche 912E 1976
Porsche 914 1970 - 1976
Porsche 930 Turbo 1976-1989
Porsche 911 (964) C2 1989 - 1994 (rear right only)
Porsche 911 (964) Turbo 1990 - 1994 (rear right only)
Porsche 911 (993) 1995 - 1998 (rear right only)
Porsche 924 1976 - 1985
Porsche 928 1978 - 1995
Diagram ref no 8
• Function: This bearing supports and aligns the differential carrier or manual transmission rear output shaft, allowing smooth rotation under load and controlling radial/axial movement of the carrier assembly. It ensures the differential or transmission output runs true, quietly and with minimal friction.
• Position on Car: Usually located in the manual transmission/differential rear housing (for example in the rear of the 911 manual gearbox, or the transaxle/differential carrier area). It may serve as the bearing between the carrier housing and the output shaft or differential ring-gear carrier.
• This part is critical for proper gear meshing, quiet running, bearing life and overall driveline integrity.
With age and use, the bearing can develop wear in its rollers/races, looseness, noise, increased friction, or misalignment. A worn bearing may lead to drivetrain noise, vibration, premature gear or bearing damage, loss of efficiency, or catastrophic failure. The bearing supports the differential carrier output shaft – incorrect bearing performance can result in excessive play, wobble, and stress on neighbouring components.
When to Replace:
• During a differential or transmission rebuild, where the carrier, output shafts or bearings are being replaced — it’s best practice to install new bearings.
• If you detect noise (growl, whine, hum) coming from the rear differential or output area, particularly under load or at higher speed. If there is measurable play / movement in the differential carrier or abnormal backlash in the gearset. If you notice metal debris, “bearing-noise” or vibration emanating from the drivetrain output / differential area.
• When you upgrade or service the manual transmission/differential – matching new components with new bearings ensures optimum alignment, longevity and performance.
Replacing this bearing means you restore correct support and alignment, minimise noise, protect the differential and improve durability. This part is critical for proper gear meshing, quiet running, bearing life and overall driveline integrity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905902702
The product you are viewing cross references to these numbers
OEMatch Bearings / Bearing Retaining Plates / Bushes — Fit, Function, Confidence
OEMatch supplies bearings, retaining plates and bushes for Porsche models, intended to support gearbox rebuilds, maintenance and restoration projects. These precision parts maintain shaft alignment, reduce friction and control vibration to preserve gearbox behaviour across road and competition applications. OEMatch catalogs over 4,000 individual part numbers and more than 8,700 OE cross-references, and continues to develop new lines for Porsche applications.
Available Types
- Individual gearbox bearings for input, layshaft and output shafts
- Machined and pressed bearing retaining plates and covers
- Polymer and metal bushings supplied as single items or repair kits
Understanding OEMatch Bearings / Bearing Retaining Plates / Bushes
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original bearings, retaining plates and bushes.
OE (Original Equipment) refers to parts matching original specifications for the bearings, retaining plates and bushes and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM bearings, retaining plates and bushes engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Bearings, retaining plates and bushes support rotating assemblies and keep gearsets correctly aligned. Bearings reduce friction between moving parts, retaining plates fix bearing position and resist axial movement, and bushes absorb side loads and damp vibration. Correct material, heat treatment and machining tolerances are key for reliable service life in Porsche gearboxes.
Benefits Include
- Restored gear alignment and smoother gear engagement
- Reduced friction and lower operating temperatures
- Less vibration and quieter gearbox operation
Why Bearings / Bearing Retaining Plates / Bushes Wear and Fail
- Insufficient or contaminated lubrication leading to accelerated bearing wear
- Heat damage and material fatigue from sustained high loads
- Corrosion and contamination from moisture or debris ingress
The Importance of Replacing with OEMatch Bearings / Bearing Retaining Plates / Bushes
Replacing worn bearings, retaining plates and bushes restores precise shaft support and prevents secondary damage to gears and shafts. Using well-specified replacements reduces the risk of noise, shifting issues and rapid re-wear after a rebuild. For Porsche gearboxes, matching materials and tolerances helps maintain intended clearances and load distribution, which is especially important where high revs and sustained torque are encountered.
Advantages
- Parts selected for Porsche applications and cross-referenced to common original numbers
- Options for standard replacement or upgraded materials where listed
- Kits and individual items to suit full rebuilds or targeted repairs