Hot Rods – Crankshafts & Thrust Washers, including the Kawasaki 750/800 crank assembly and 25x1mm and 26x1mm thrust washers sold in two-piece sets. This is the rotating heart of a PWC engine: a fully assembled, trued crankshaft ready to drop into the cases, and the hardened thrust washers that set crank end play and keep the rods running square on their journals. Personal watercraft engines live at wide-open throttle with almost no airflow relief, so the crank sees sustained high rpm and constant load from the pump instead of the on-off cycling a land vehicle gets. That duty cycle punishes a crank with bent or twisted webs, and it destroys rod bearings once thrust clearance opens up. A straight PWC crank assembly and correct thrust washers keep the engine balanced, so the ski holds rpm without shaking the hull or hammering the motor mounts, jumps on the throttle coming out of a turn and runs a full day of open-water riding without heat soak or vibration wearing you out. Tell us the ski model, year and engine and we will confirm the right crank assembly or thrust washer size fits your watercraft before you order anything.