ENGINE OIL SEAL SET VERTEX YAMAHA YZ65 18-ON YZ85 19-ON S3-Cat-Communications-XSeries/XliteNCom Features an off-set TR4 valve

Features an off-set TR4 valve stem specifically positioned for off-centre rim holes

Constructed from specialized elastomer compounds that resist UV degradation and chemical wear

Approved and endorsed by AMA

Integrated chain breaker is compatible with most modern speed chains

Hard wearing and resistant to weather and crash damage

ENGINE OIL SEAL SET VERTEX YAMAHA YZ65 18-ON YZ85 19-ON S3-Cat-Communications-XSeries/XliteNCom Features an off-set TR4 valveProvide your Yamaha small bore racer with the ultimate protection against oil leaks with this specialized seal kit. High quality engine seals are vital for two stroke performance, as they maintain the crankcase vacuum required for efficient fuel induction. This set is specifically matched for YZ65 and YZ85 models from the indicated years. Includes the critical main crank seals necessary for maintaining correct air fuel ratios and engine stability.