1959-1962+? Air conditioning / Accessory pulley for Pontiac V8s.May be aftermarket.

Definitely 389 & 421 compatible.

Cleaned & painted, it fits the factory vibration dampener & pulleys and includes an extra long bolt to screw into the factory crank..

Spacing should fit factory air cars but I cannot be certain. WAY cheaper than the original factory 3 groove pulleys.

Buyers, please be sure of your needs.