Perrin Lightweight Water Pump Pulley Subaru WRX will reduce the weight of rotating parts inside and outside an engine frees up horsepower that can now be sent to the wheels. With that in mind, the Lightweight Water Pump Pulley replaces the OEM water pump pulley with a lightweight, high performance version.
Made from lightweight 6061T6 billet aluminum that is CNC machined to precise tolerances and balance.
OEM Pulley Weight - 0.693 lbs.
PERRIN Pulley Weight - 0.479 lbs.
0.214 lbs. & 30% lighter!
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