Pulleys

Alternator Pulley BRZ/FRS/86

This is GNP's Lightweight Alternator pulley. It's T-6061 aluminium, CAD designed, CNC milled, the...

This is GNP's Lightweight Alternator pulley. It's T-6061 aluminium, CAD designed, CNC milled, then it's hard anodized in three rich colours to add a little bling to go with the lightened performance benefits.This is a stock size alternator pulley, just a lot lighter, so your stock belts will work.The stock alternator pulley is 195 gramsThe GNP Lightweight alternator pulley is 71 gramsThat's a 124 gram difference, that's .27 of a pound reduction.Try it on it's own or with our Lightweight Crank...

Pulley Cover RED - Subaru 15-21 WRX

Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that d...

Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in place above your alternator and its design is intended to compliment the GrimmSpeed Top Mount Intercooler and Charge Pipe perfectly. Available in black, red and neon green durable texture powder coated finishes, it's the perfect finishing touch for your engine bay. Quick Specs Laser Cut Heavy Duty Aluminum - perfe...

Pulley Cover RED - Subaru/Toyota BRZ/FRS/86

ENGINEERED TO PERFECTION. Booya! Add a bit of style and function to your engine bay with this sim...

ENGINEERED TO PERFECTION. Booya! Add a bit of style and function to your engine bay with this simple but elegant and first of it's kind pulley cover, featuring the world famous GrimmSpeed tool tray. This cover mounts securely in place of your plastic factory covers and its asymmetric design compliments the BRZ/FRS/86 engine bay nicely. Available in either red or black textured powder coat to match the rest of your GrimmSpeed engine bay parts! Quick Specs Laser Cut Venting - provides plenty ...

Lightweight Crank Pulley BLUE - Subaru FA/FB En...

Proven Performance. Your factory crank pulley is responsible for transferring energy from your c...

Proven Performance. Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The G...