OEM Transmission O-Ring for KTM, Husqvarna & GasGas 1995-2026 - 0770020220

This genuine OEM O-ring (12x1.78 mm) is a critical sealing component designed for high-performance motorcycle engines. Manufactured from NBR70 nitrile rubber, it provides excellent resistance to oil, heat, and mechanical wear. It is primarily used in transmission countershaft and timing drive assemblies to ensure a leak-free seal and maintain optimal internal engine pressure.

This versatile part fits an extensive range of models across the KTM, Husqvarna, and GasGas lineups from 1995 through 2026. Compatible motorcycles include the KTM 125-530 EXC, SX, and XC series, the 690 Enduro and SMC R, and the 790/890 Adventure models. It also fits Husqvarna FC, FE, TC, TE, and Norden 901 models, as well as GasGas EC, EX, and MC variants across multiple displacements.

Using an authentic OEM seal ensures precise fitment and material compatibility that aftermarket alternatives may lack. The NBR70 material is specifically chosen for its durability in demanding powersports environments, preventing premature failure and protecting your engine from oil leaks. Replacing this O-ring during routine maintenance or transmission service is essential for long-term reliability.

Check compatibility list below to see if this part fits your motorcycle model.