Cylinder Head O-Ring 78x2mm for KTM 300 EXC/XC & 50 SX 2008-2026 - 0770078020

This genuine OEM cylinder head O-ring is a critical sealing component for your motorcycle's engine. Measuring 78.00x2.00 mm, it is designed to provide a high-temperature, leak-proof seal between the cylinder and the cylinder head. Using original parts ensures optimal compression and prevents coolant leaks into the combustion chamber.

This O-ring fits an extensive range of 300cc 2-stroke models and 50cc mini bikes. It is compatible with KTM 300 EXC, 300 EXC TPI, 300 EXC Six Days, 300 XC, 300 XC-W, 300 SX, 50 SX, and 50 SX Mini models from 2008 to 2026. It also fits Husqvarna TE 300, TE 300i, TX 300, TX 300i, TC 300, TC 50, and TC 50 Mini models. Additionally, this part is used in GasGas EC 300, EX 300, MC 300, and MC 50 models, including special editions like the Erzbergrodeo, Rockstar, and Heritage versions.

Constructed from high-quality Viton material, this O-ring offers superior resistance to heat, oil, and chemical degradation. Its precise dimensions ensure a perfect fit, maintaining the integrity of your engine's cooling and combustion systems during intense riding conditions.

It is highly recommended to replace this O-ring whenever the cylinder head is removed for maintenance or top-end rebuilds. Reusing old seals can lead to engine overheating or loss of power due to compression leaks. Always ensure the mating surfaces are clean before installation.

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