Spider Crankshaft stock replacement pulley manufactured from high quality 4140 steel with electroless nickel plating and extra timing marks
The 1982-1989 Alfa Spiders equipped with air conditioning have a serious problem with the factory crank pulleys cracking near the key way. The problem is so severe that there is a waiting list to get used replacements at the nation's primary Alfa Salvage yard. We have designed a replacement pulley that will never crack or fail. It has both factory belt slots as well as provisions to attach a 6 rib supercharger pulley. It's the ultimate solution for this problem.
This pulley is a direct fit replacement for the stock pulley and includes the factory timing marks.
This pulley will fit all Alfa L-Jetronic and Spica 2 liter engines. Although it fits the Spica engines, it does not have provisions to drive the Spica pump so it's only usable on Spica cars converted to some other fuel delivery system (Webers, SDS, Gotech, etc.). Air conditioning equipped L-Jet cars will need to retain their forward flange plate that bolts to the front of the factory crank pulley.
Electroless nickel plating provides a tough & long lasting finish that looks great. It will prevent rust and is far superior to paint. The extra timing marks allow performance oriented users to dial in very accurate timing settings.