Lightweight Alternator Pulley for FA20 Engines

The GFB Lightweight Alternator Pulley is designed as a direct replacement for the factory alternator pulley fitted to FA20-powered vehicles. By reducing rotating mass, it improves accessory drive efficiency without altering factory charging characteristics.

Alternator-Specific Design

This pulley replaces the alternator pulley only. It is engineered to maintain correct belt alignment and alternator speed for normal electrical system operation.

Lightweight Aluminium Construction

Manufactured from lightweight aluminium, the pulley reduces inertia compared to the factory steel component while retaining the correct dimensions and fitment.

Factory Drive Ratio Retained

This is not an underdrive pulley. The original pulley diameter is maintained to ensure normal alternator output and battery charging performance.

Direct Bolt-On Installation

Designed as a direct bolt-on replacement, the pulley installs without modification on compatible FA20 engines.