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Porsche > 924 (1977-1988) > 924 Turbo 2.0L 1982-84 > Gearbox / Transmission >

Flywheel / Torque

Flywheel / Torque

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Flywheel spigot bearing. Porsche 911 / 924 / 944 / 968 / 997 turbo / 997 GT3 RS - 93110211100, 93110211102, 93110211102/1
3
Flywheel spigot bearing. Porsche 911 / 924 / 944 / 968 / 997 turbo / 997 GT3 RS
93110211102/1
Product Information
Product Information

Flywheel Spigot Bearing 

Ensure smooth clutch operation and precise gearbox input shaft alignment with this OE Match Flywheel Spigot Bearing, designed for selected Porsche 911, 924, 944, 968 and 997 GT3 RS models. Manufactured to original equipment specifications, this high-quality replacement bearing supports the gearbox input shaft within the flywheel or crankshaft, reducing friction and ensuring smooth clutch engagement.

Fits:

  • 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 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 RS 2007-09
  • Porsche 924 Turbo 2.0L 1979-81
  • Porsche 924 Turbo 2.0L 1982-84
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche 968 3.0L 1992-94
  • Porsche 968 Sport 3.0L 1994-95
  • Porsche 968 CS 3.0L 1993-95
  • Porsche 968 Turbo S 3.0L 1993-94

Diagram ref no 3

Although compact, the spigot bearing is a critical drivetrain component. Replacing it during clutch servicing helps maintain precise transmission alignment, reduces gearbox wear and ensures reliable long-term operation.

What Does the Flywheel Spigot Bearing Do?

Also known as a pilot bearing, the flywheel spigot bearing supports the tip of the gearbox input shaft while allowing it to rotate independently of the engine when the clutch is disengaged.

Its primary functions include:

  • Supporting the gearbox input shaft.
  • Maintaining precise alignment between the engine and transmission.
  • Reducing friction during clutch operation.
  • Allowing smooth clutch disengagement.
  • Minimising wear on the gearbox input shaft.
  • Helping provide smooth gear changes and consistent clutch operation.

A properly functioning spigot bearing is essential for the smooth operation of the clutch and transmission.

Why Do Flywheel Spigot Bearings Fail?

The bearing is subjected to continuous rotational loads, clutch operation and heat throughout its service life. Common causes of failure include:

  • Normal bearing wear after high mileage.
  • Loss or deterioration of lubrication.
  • Dirt or clutch dust contamination.
  • Corrosion caused by moisture.
  • Excessive heat generated by clutch slip.
  • Wear caused by misalignment or heavy clutch use.

As the bearing wears, it may develop excessive play or roughness, placing additional stress on the clutch and gearbox.

When Should the Flywheel Spigot Bearing Be Replaced?

Replacement is recommended whenever:

  • A new clutch kit is installed.
  • The gearbox is removed.
  • A flywheel is replaced.
  • The bearing feels rough or noisy.
  • Excessive play is detected.
  • During engine or transmission rebuilds.

Because the bearing is inexpensive compared to the labour required to access it, Porsche specialists strongly recommend replacing it during every clutch replacement.



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

93110211102
93110211100
93110211102
93110211102

The product you are viewing cross references to these numbers
Hexagon bolt for fastening the flywheel. Porsche 924 Turbo - 93110220200
2
Hexagon bolt for fastening the flywheel. Porsche 924 Turbo
Special Order item
93110220200
Product Information
Product Information
Hexagon bolt M12x1.5x18 for fastening the flywheel

porsche

Fits:
Porsche 924 Turbo (1981 to 1984)
with engine code M31.03

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

93110220200
93110220200

The product you are viewing cross references to these numbers
Lightweight billet aluminium flywheel. Porsche 924 turbo / Carrera GTS - 93110220505, 93110220601, 93110220603
1
Lightweight billet aluminium flywheel. Porsche 924 turbo / Carrera GTS
93110220505/1
Product Information
Product Information
Lightweight billet aluminium flywheel. 

spec

Fits:
Porsche 924 turbo 2.0ltr  - 1979  to 1984
Porsche 924 Carrera GT / GTS - 1981 to 1982

“Tuned” Billet Flywheels
Manufactured from only the highest quality steel and aluminum they are the only flywheels on the market manufactured to a .001 machine tolerance. This guarantees a flat seating surface for the clutch and smooth rotational qualities for perfect balance and extended engine life.

Machined friction plate is bolted in place so can be replaced if needed

SPEC billet flywheels are manufactured and developed for specific driving environments and recommended based on how each car reacts to changes in rotating mass.

Please Note
Images may be a representation and may not reflect the actual product.



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

93110220505
93110220505
93110220601
93110220603

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About Flywheel / Torque

Porsche Flywheels & Torque Converters | Smooth Power Transfer & Engine Balance

Flywheels and torque converters are vital components in your Porsche’s drivetrain, ensuring smooth power transfer from the engine to the transmission. The flywheel provides rotational balance and stores kinetic energy for manual gear changes, while the torque converter in automatic models performs a similar role — transferring engine torque hydraulically for seamless acceleration.

At Design911, we supply precision-engineered flywheels and torque converters designed to meet or exceed original performance specifications. Each component is manufactured from high-grade materials, ensuring strength, balance, and reliability under all driving conditions. Whether you’re restoring a classic 911 or maintaining a modern PDK-equipped Porsche, our range provides the quality and performance your drivetrain demands.

What Do Flywheels & Torque Converters Do?

Both components play critical roles in the performance and drivability of your Porsche, acting as torque-transfer systems between the engine and gearbox.

Flywheels (Manual Transmissions):
Store rotational energy to maintain engine smoothness. Provide a friction surface for clutch engagement. Aid in gear transitions by balancing engine speed and torque.

Torque Converters (Automatic Transmissions):
Transfer torque through fluid dynamics between engine and gearbox. Enable smooth gear shifting without clutch operation. Multiply torque for efficient acceleration and smoother driving.

Together, they ensure seamless operation, smooth starts, and optimal power delivery from engine to transmission.

Why Do Flywheels & Torque Converters Fail or Wear Out?

Over time, both flywheels and torque converters experience wear due to high rotational forces, friction, and heat cycles.

Common Causes of Failure Include:

  • Heat damage or warping from clutch slippage (flywheels).
  • Cracked or worn ring gear teeth affecting starter engagement.
  • Fluid contamination or internal seal leaks (torque converters).
  • Bearing wear leading to vibration or imbalance.
  • Excessive torque or misalignment from modified engines.

Symptoms of failure may include clutch chatter, transmission shudder, vibration during acceleration, or slipping during gear changes. Ignoring these signs can lead to further drivetrain damage.

Why Replace your Flywheel or Torque Converter?

Replacing worn flywheels or torque converters restores smooth torque delivery, reduces vibration, and ensures reliable clutch or transmission performance. Upgraded lightweight flywheels improve throttle response, while performance torque converters enhance acceleration and drivability.

Key Benefits:

  • Restores smooth engine-to-transmission power delivery.
  • Eliminates vibration, slippage, and engagement issues.
  • Improves clutch or automatic transmission performance.
  • Balances rotational mass for smoother idling and shifting.
  • Available in lightweight or performance designs for tuned Porsches.
  • Ideal for clutch replacement, transmission rebuilds, or performance upgrades.

It’s strongly recommended to replace the flywheel or torque converter during any major clutch or gearbox service for long-term reliability and balanced performance.

Highlights

  • Premium Porsche flywheels and torque converters.
  • Precision-balanced for smooth, vibration-free operation.
  • Manufactured from high-strength, heat-treated materials.
  • Available for manual, automatic, and PDK Porsche models.
  • Enhances drivability, acceleration, and transmission longevity.
  • Essential for gearbox rebuilds, clutch services, and performance tuning.

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