Cylinder Head O-Ring 73x2mm for KTM/Husqvarna 250 2007-2026 - 0770730020

This genuine OEM Viton O-ring (73.00x2.00mm) is a critical sealing component for the cylinder head assembly. It is designed to provide a high-temperature, leak-proof seal between the cylinder and the head, ensuring your engine maintains optimal compression and cooling efficiency.

This part features extensive compatibility with 250cc models from 2007 to 2026. It fits the KTM 250 SX, XC, XC-W, and EXC (including TPI and Six Days editions), Husqvarna TC 250, TE 250, and TE 250i, as well as GasGas MC 250, EC 250, and EX 250. It is also the correct replacement for KTM Freeride 250 R models produced between 2014 and 2017.

Manufactured from high-grade Viton, this O-ring offers superior resistance to heat and chemical degradation compared to standard rubber seals. Using original equipment parts ensures a precise fit and the durability required for high-performance two-stroke racing and enduro applications.

When performing top-end maintenance or a cylinder head inspection, always replace the O-rings to prevent potential coolant leaks. Ensure that all mating surfaces are thoroughly cleaned before installation to guarantee a perfect seal.

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