Flywheel spigot bearing. Porsche 911 / 924 / 944 / 968 / 997 turbo / 997 GT3 RS  ❭  93110211102

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.

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