Muffler End Cap O-Ring for KTM, Husqvarna & GasGas 2005-2026 - 0770740015

This genuine OEM Silencer End Cap O-Ring is designed to provide a high-temperature seal between the muffler body and the end cap. It prevents exhaust gases from leaking, ensuring your exhaust system maintains optimal pressure and performance. As an original equipment manufacturer part, it offers a perfect fit and reliable durability under extreme riding conditions.

This versatile O-ring is compatible with an extensive range of models from 2005 to 2026. It fits KTM 85 to 500cc SX, EXC, and XC models, Husqvarna TC, TE, and FE series, and GasGas MC, EC, and EX bikes. It is also used on larger displacement machines like the KTM 625 and 640 LC4 series, making it a vital component for a wide variety of off-road and street-legal motorcycles.

Constructed from high-quality, heat-resistant rubber, this O-ring is built to withstand the intense thermal cycles of a motorcycle exhaust. Replacing a worn or flattened O-ring is essential during silencer repacking to prevent "blow-by" and carbon buildup around the end cap. A fresh seal helps keep your bike running quietly and efficiently while protecting the silencer housing.

We recommend inspecting this O-ring every time you disassemble your silencer for maintenance or repacking. Applying a small amount of high-temp silicone grease during installation can help seat the ring properly and extend its service life. Ensure the mounting grooves are clean of old debris and carbon before fitting the new seal to ensure a leak-free finish.

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