Type 1 Top Pulley (Alternator Pulley Or Dynamo Pulley) - 12 Volt

This standard top pulley is designed as a direct replacement for the original fitted to 12-volt dynamo or alternator systems on classic aircooled VW Type 1 engines from 1200cc to 1600cc. Finished in a durable black painted coating, it offers a clean OEM-style appearance while providing protection against corrosion and everyday wear.

The pulley is a key component in the engine’s belt-driven system. Mounted on the generator or alternator shaft, it works with the crankshaft pulley to drive the fan belt. This belt powers both the charging system and the cooling fan, making correct pulley condition essential for engine reliability. A worn or damaged pulley can lead to belt slip, reduced charging efficiency, overheating, or premature belt wear.

Manufactured to the correct factory profile, this pulley ensures proper belt tracking and smooth operation. Belt tension is adjusted using shims between the pulley halves (sold separately if required), allowing accurate setup to prevent slipping or over-tightening.

Ideal for maintenance or restoration projects, this pulley restores correct operation of both cooling and charging systems. When fitting, it is recommended to check the fan belt, pulley shims, woodruff key, and retaining nut to ensure a complete and secure installation.

Vehicle Fitment

Aircooled Applications (Type 1 Engines 1200cc–1600cc):

• VW Beetle: 1960–1979
• VW Splitscreen Bus: 1960–1967
• VW T2 Bay Window: 1968–1979
• VW Karmann Ghia: 1960–1974
• VW Type 181 (Trekker): 1968–1983
• VW Buggy & Baja: 1960–1979

Key Features

• Fits 12V dynamo and alternator setups
• Correct pulley profile for accurate belt alignment
• Black painted finish for OEM look and corrosion protection
• Supports efficient cooling fan and charging system operation
• Direct replacement for original Type 1 pulley