Air Cooled VW 1967-1979 Alternator Pulley with Black Fins 040903109

1967-1979 Alternator Pulley with Black Fins 040903109 - OEM Number(s) (040-903-109)

Keep your alternator cooling system correct and reliable with a complete pulley assembly designed for 12-volt models.

This black-finned alternator pulley includes all the necessary hardware for installation. Designed to fit 12-volt Air Cooled VW engines, it requires a minimum of 10 shims to properly set belt tension and prevent damage. Replacing a worn or incorrect pulley restores proper cooling efficiency and extends alternator life.

Fits the Following Volkswagen Models:

• Beetle, Standard 1967–1977

• Beetle, Super 1971–1979

• Bus 1968–1979

• Karmann Ghia 1967–1974

• Thing 1973–1974

Material/Finish

Steel construction with black-coated fins

Dimensions

• Requires minimum of 10 shims for correct installation

• 12-volt applications only

Features/Benefits

• Complete alternator pulley assembly with hardware

• VW reference part number: 040903109

• Black fin design matches factory appearance

• Ensures proper belt alignment and cooling airflow

• Extends alternator and engine life

• Specifically for 12-volt VW engines

Because Details Matter

The alternator pulley does more than turn a belt — it’s part of the delicate balance that keeps your Air Cooled VW running cool and correct. The black fins, the tension set by the right number of shims, the feel of everything fitting together just so — these are the mechanical details that keep your Volkswagen authentic and dependable.

Also known under these part numbers: (For reference only)

• 040-903-109
• 040903109
• 707924376302
• 98-9012-B