Boyesen Supercooler water pump cover and impeller kit, black — Yamaha YZ 125 1998–2004

Description

Boyesen Supercooler water pump cover and impeller kit, black for Yamaha YZ 125 1998–2004. Investment-cast aluminium water pump cover with a larger, patented nautilus-style impeller — the pump moves more coolant at all rpm, so the engine runs cooler and at a steadier temperature. Most useful for enduro riders in slow terrain where engines overheat easily.