
Replace the worn crankshaft seal with this PROX reference 41.2-20447, designed for motocross engines requiring a compact seal of 20x40x8 mm. This individual seal serves the essential function of maintaining sealing around the crankshaft and limiting oil leaks that compromise the proper functioning of the engine.
Common compatibilities: YAMAHA YZ 85 LW BIG WHEELS 19/16 (CB10) 2018, YAMAHA YZ 85 (CB09) 2012, YAMAHA YZ 85 LW BIG WHEELS 19/16 (CB08) 2004. Always check the dimensions and reference before installation to ensure proper fit on your machine.
Workshop tips: carefully clean the housing and check the condition of the crankshaft (absence of deep scratches) before installation. A clean installation and correct positioning of the seal help restore the lower engine's sealing and prevent leaks during motocross sessions.