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Differential Taper Roller Bearing. Porsche 964 / 993 1989-98 - 99905911100
99905911100/1
Vehicle Group
- 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
Information
Differential Taper Roller Bearing.
Diagram Ref No 41
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905911100
The product you are viewing cross references to these numbers
The Differential Taper Roller Bearing is a OE MATCH drivetrain component designed to support and stabilise rotating differential components while allowing them to operate smoothly under heavy load. Tapered roller bearings are specifically engineered to handle both radial and axial forces, making them ideal for high-stress drivetrain applications such as the differential assembly.
Fits:
- 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
Diagram Ref No 41
What This Product Does:
- Supports rotating differential gears and shafts
- Handles both radial and axial loads within the drivetrain
- Reduces friction between moving components
- Maintains proper alignment of differential parts
- Ensures smooth and efficient power transfer to the wheels
Symptoms Of Wear Or Failure:
- Whining or humming noise from the differential area
- Grinding noises during acceleration or deceleration
- Vibration felt through the drivetrain
- Excessive play in drivetrain components
- Metal particles found in differential oil
- Uneven or abnormal drivetrain noise at certain speeds
Why Replacement Matters:
- Restore smooth differential operation
- Reduce drivetrain noise and vibration
- Maintain correct gear alignment
- Protect differential gears and shafts
- Avoid costly differential repairs or rebuilds
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905911100
99905911100
The product you are viewing cross references to these numbers
Price: €69.66
In stock
Related products
Vehicle Group
- 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)
Information
Needle roller bearing.
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
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
99920147000
The product you are viewing cross references to these numbers
Price: €45.60
In stock
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
Information
Four Point Bearing.
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:
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:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905203000
The product you are viewing cross references to these numbers
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
99905203000
313 09 754
313097540322
99905203000
31309754
The product you are viewing cross references to these numbers
Price: €150.00
In stock
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
Information
Flywheel-End, Shaft Bearing (Or Pinion Bearing) For 915 Transmission.
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:
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:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911014601
The product you are viewing cross references to these numbers
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
99911014601
The product you are viewing cross references to these numbers
Price: €234.84
In stock