do not press the back button…
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.
- 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 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
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- 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 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Pinion shaft bearing
OE Match pinion shaft bearing for selected Porsche 964, 993, 996 Turbo and 996 GT3 transmissions. Supplied diagram information identifies a four-point or angular-contact bearing measuring 40 × 82 × 18 mm.
Fits:
- Porsche 964 1989 - 1994
- Porsche 993 1995 - 1998
- Porsche 996 Turbo 2001 - 2005
- Porsche 996 GT3 1999 - 2005
Diagram Ref no 25
What This Product Does
This gearbox bearing supports the rotating pinion shaft and helps maintain its position within the transmission. Correct bearing condition is important for shaft alignment and controlled rotation under load.
Functions
- Supports pinion shaft rotation.
- Helps keep the shaft correctly located.
- Limits friction at the bearing interface.
Symptoms of Fault
Possible signs include speed-related whining, rumbling, excessive shaft movement or metallic debris in gearbox oil. These symptoms require diagnosis: clutch, linkage, mounts and lubrication faults can produce similar complaints.
Why Replacement Matters
Renewing a worn bearing helps address unwanted shaft movement and rough rotation during transmission repairs. Inspect neighbouring bearings, gears, seals and retaining components during dismantling rather than assuming this bearing alone explains every symptom.
FAQs
Can just one bearing be renewed?
It may be appropriate after inspection, but the condition of the remaining transmission components should guide the repair.
Does gearbox oil specification matter?
Yes. Use the lubricant specified for the particular transmission; changing oil does not repair mechanical bearing damage.
How should compatibility be checked?
Compare reference 99730229300, the vehicle details and the gearbox code before selecting the bearing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905222701
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
This four-point contact bearing is used in the manual transmission main/input shaft area on Porsche 964 applications. Four-point contact bearings are designed to manage combined loads in compact packaging - supporting stable shaft positioning and smooth rotation under varying operating conditions.
Fits:
Porsche 964 1989 - 1994
Diagram ref no 16
A worn bearing can introduce vibration, noise, imprecise shifting, and accelerated wear of related transmission components. Replacing it during gearbox servicing helps restore smooth operation, correct shaft support, and long-term reliability - especially important on performance-oriented drivetrains like the Porsche 964.
It supports the transmission main shaft and helps keep internal gear alignment stable under load. By maintaining correct shaft position, it reduces friction, noise, and wear - supporting smoother shifting and consistent drivetrain performance.
Function:
• Provides precise main/input shaft support inside the gearbox
• Helps manage axial and radial loads through four-point contact design
• Maintains correct gear mesh alignment to reduce wear and noise
• Supports smooth rotation and consistent transmission performance
Transmission bearings are critical to shaft stability and gear alignment. If this bearing wears, it can lead to whining noises, vibration, shifting issues, and increased wear on gears and synchros. Replacing it with an OE Match bearing helps restore gearbox integrity and protects more expensive transmission components.
When to replace:
• Gearbox whining, rumbling, or grinding noises
• Vibration or roughness that changes with speed/load
• Excessive shaft play found during teardown/inspection
• During gearbox rebuild/overhaul (preventative replacement)
• Visible pitting, heat marks, or rough rotation on the bearing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905209801
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 914 (1970-1976)
Gearbox cylindrical roller bearing. 30 x 62 x 20
OE Match cylindrical roller bearing for the gearbox assemblies of selected Porsche models. Its supplied dimensions are 30 x 62 x 20 mm, with five-speed and six-speed manual applications detailed below.
Fits
For cars with 5-speed MANUAL transmission
Porsche 911 Carrera 1987 - 1989
Porsche 911 (930) Turbo 1989
Porsche 964 C2 / C4 1989 - 1994
Porsche 964 Carrera 2 RS 1992
Porsche 964 Turbo 1991
For cars with 6-speed MANUAL transmission
Porsche 993 C2 / C4 / C4S 1994 - 1998
Porsche 993 Carrera RS 1995
Porsche 993 Turbo 1995 - 1998
Porsche 996 Turbo / GT2 2001 - 2005
Porsche 997 GT2 2008 - 2009
Porsche 997 GT2 RS 2011
Porsche 996 GT3 1999 - 2005
Porsche 997 GT3 / GT3 RS 2007 - 2011
Diagram ref no 27
What This Product Does
The bearing supports rotating components within the transmission, helping maintain their alignment while limiting friction. It is an internal gearbox component, rather than a clutch release bearing or retaining plate.
Functions
- Support rotation within the gearbox assembly.
- Help locate transmission components accurately.
- Limit friction at the bearing interface.
Symptoms of Fault
- Whining or rumbling from the transmission.
- Excessive movement in a supported shaft.
- Metallic debris discovered during an oil inspection.
- Visible bearing discolouration or damaged rolling surfaces.
Why Replacement Matters
A worn bearing can allow unwanted movement and contribute to further internal wear. During repair or rebuilding, inspect neighbouring bearings, shaft surfaces, retaining components and lubrication condition rather than treating noise alone as proof of this bearing's failure.
FAQs
- Does gearbox noise confirm a faulty bearing?
No. Oil condition, mounts, clutch components and other internal parts can produce similar symptoms, so diagnosis should precede replacement. - Can only one bearing be renewed?
A single replacement may be appropriate after inspection. A gearbox rebuild should include an assessment of the other bearings and supporting components. - What should be checked before fitting?
Verify the transmission code, original reference and dimensions, then assess adjacent components and use the specified gearbox lubricant.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911011701
The product you are viewing cross references to these numbers