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99906700702/1
Product Information
Product Information

Flywheel Bolt – Sold each,  6 required rea car

OE Match replacement flywheel bolt for early Porsche 911 modes. This high-load fastener secures the flywheel directly to the crankshaft, making it a critical component when carrying out clutch, flywheel or engine rebuild work.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 914 (1970-1976)

Diagram ref no 8

Size: M12 x 1.25 x 27.5mm
Quantity required: 6
Price is for: 1 bolt

What Does the Flywheel Bolt Do?

The flywheel bolts securely clamp the flywheel to the crankshaft. This connection must withstand the rotational forces and repeated loading produced by the engine while maintaining accurate flywheel positioning.

A secure flywheel-to-crankshaft connection is essential for reliable transfer of engine torque to the clutch and transmission.

Why Do Flywheel Bolts Need Replacing?

Flywheel bolts operate under substantial mechanical load. Removal, repeated tightening, incorrect torque or previous engine work can affect their condition.

They should be inspected for:

  • Damaged or stretched threads
  • Corrosion Rounded or damaged heads
  • Signs of previous overtightening
  • Physical distortion
  • Incorrect or unidentified replacement bolts

When Should They Be Replaced?

Replacement is recommended whenever the flywheel is removed during major engine work, particularly during:

  • Engine rebuilds
  • Crankshaft repairs
  • Flywheel replacement
  • Major clutch work
  • Restoration of an unknown or previously modified engine

Always follow the correct Porsche workshop procedure and specified tightening sequence when installing flywheel fasteners.

Checks During Installation

Before fitting, inspect the:

  • Crankshaft threads
  • Flywheel mounting surface
  • Flywheel bolt holes
  • Flywheel condition
  • Locking components
  • Crankshaft-to-flywheel mating surfaces

Any damaged threads or incorrect seating should be rectified before final assembly.



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