Type 4 Engine Half Moon Bolt - 123mm (Starter Motor Bolt)

This replacement starter motor bolt features a special half-moon head designed to lock securely against the body of the starter motor, allowing you to tighten or remove the nut without the need for a spanner or socket. This clever design makes starter motor installation and servicing significantly easier, especially in the tight engine bays of classic VW buses.

Manufactured to precise OEM dimensions, this M10 x 123mm bolt secures the starter motor to the bellhousing of the gearbox and ensures a reliable connection between the starter and transmission assembly. It’s essential for correct alignment and torque transfer when starting your aircooled engine.

Ideal for use when fitting a new starter motor or carrying out gearbox removal, this bolt is suitable for all Baywindow and Type 25 (T3) models fitted with 1700cc, 1800cc, and 2000cc aircooled engines.

Features:

• Exact-fit M10 x 123mm starter motor bolt

• Half-moon locking head eliminates the need for a spanner on the bolt side

• Prevents unwanted rotation during tightening

• Essential when refitting or servicing the starter motor

• High-strength steel for long-lasting durability

• Direct replacement for original VW bolt

Applications:

• VW Baywindow Bus (Type 2): 1972–1979 – Starter Motor Bolt (1700cc, 1800cc, 2000cc)

• VW Type 25 / T3 Bus: 1979–1983 – Starter Motor Bolt (Aircooled engines only)

Specification:

• Thread size: M10

• Length: 123mm

• Material: High-tensile steel

• Head type: Half-moon locking

• Quantity: Sold each