Goleby's Parts - 1JZ/2JZ Billet Alternator Underdrive Pulley 

Prevent alternator failure at high RPMs with our Goleby's Parts Billet Alternator Underdrive Pulley for all 1JZ and 2JZ applications! Designed and manufactured in-house, this 84mm outside diameter pulley ensures reliable performance.

Additional Information:

Belt recommendations using this Underdrive pulley:

6PK1965 is recommended when using the standard belt configuration with our Underdrive Pulley(Standard Alternator).

6PK1975 is recommended when using the standard belt configuration with our 1JZ/2JZ High Output 150AMP Alternator kit. 

6PK1880 is recommended when using our 1JZ/2JZ Air Conditioning Delete Bracket with all standard accessories (Standard Alternator with our Underdrive Pulley).

6PK1900 is recommended when using our 1JZ/2JZ Air Conditioning Delete Bracket and our 1JZ/2JZ High Output 150AMP Alternator kit.