GrimmSpeed Lightweight Crank Pulley Blue 2015-2021 WRX 2013-2019 BRZ/FRS


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 its 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 GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly.

- 75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley

- Machined 6061 T6 Aluminum - high quality, precision construction
- Hard-Anodized Finish - ensures a durable finish and resists corrosion
- Removal Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool
- Factory Fitment - direct replacement for easy installation


2015-2021 WRX
2013-2019 BRZ/FRS

More Information
Color Blue
Manufacturer Grimmspeed
Price 135.00
Write Your Own Review
Only registered users can write reviews. Please, Sign in or create an account
To Top