ProX Crankshaft Seals for Yamaha YZ 125 1986-1997

The ProX crankshaft seal kit for Yamaha YZ125 from 1986–1997 is a targeted replacement solution for anyone planning a reliable bottom-end rebuild. This crankshaft oil seal kit provides reliable crankshaft sealing and helps prevent leaks during tough, demanding rides.

• Compatibility: Yamaha YZ125 model years 1986–1997.
• Type: Crankshaft oil and seal kit, intended for bottom-end maintenance and engine rebuilds.
• Brand: ProX, an established aftermarket supplier specializing in reliable replacement parts for motocross bikes.
• MPN: 42.2206, ideal for quick identification and purchase.
• Design and materials: High-quality seals developed for long-lasting use in demanding engine conditions.

This kit is particularly well-suited as part of a bottom-end rebuild (crankshaft-stage engine overhaul) and offers a targeted solution for Yamaha YZ125 powertrains from the years listed above. The ProX design closely matches the specifications of the crankshaft seals that are typically replaced during a professional bottom-end service.