Boyesen WPI-37 Water Pump Impeller riding-apparel-jackets-street Special Note: Cover must be

Special Note: Cover must be removed for trailering

When used correctly

Bolts in three places using existing holes

while keeping comfort and functionality for the rider

low-deflection

Boyesen WPI-37 Water Pump Impeller riding-apparel-jackets-street Special Note: Cover must beDesigned to increase water flow and reduce hydraulic friction for a cooler, more constant temperature. Less horsepower loss during the late stages of a race. Extends engine life. Covers feature a super tough, powder coated finish that resists weathering and wear and tear. Impellers are designed to minimize cavitation. Vehicle Fitment: 2001 2007 Yamaha WR250F 2001 2007 Yamaha YZ250F