Exhaust Silencer Rock Wool Packing for KTM EXC-F 250-500 2017-2019 - 79005078640

This genuine OEM rock wool shaped part is designed specifically for the exhaust silencer of KTM four-stroke enduro models. It serves as the primary sound-absorbing material, ensuring your motorcycle meets noise regulations while maintaining optimal exhaust flow. Replacing worn packing is essential for preserving engine performance and preventing the silencer housing from overheating.

This part is compatible with a wide range of KTM models from 2017 to 2019. It fits the 250 EXC-F, 350 EXC-F, 450 EXC-F, and 500 EXC-F, including both standard and Six Days editions for the EU and US markets. Specifically, it covers the 2017, 2018, and 2019 model years for these high-performance four-stroke machines.

Manufactured to exact factory specifications, this pre-shaped rock wool insert provides a perfect fit inside the muffler canister. The high-density fibrous material is engineered to withstand extreme temperatures and the high-pressure pulses of a modern four-stroke engine. Using original equipment parts ensures the longevity of your exhaust system and maintains the signature sound of your KTM.

Over time, exhaust packing becomes saturated with carbon or breaks down due to heat, leading to increased noise and potential power loss. We recommend inspecting your silencer packing periodically and replacing it if the exhaust note becomes noticeably louder or tinny. Proper installation involves removing the silencer end cap and sliding the new shaped wool into place.

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