Copper Seal Ring 12x18x1.5 for KTM, Husqvarna & GasGas 1994-2026 - 58038022000

This genuine OEM copper seal ring is a critical component for maintaining a leak-free engine and lubricating system. Designed to DIN7603 standards with dimensions of 12x18x1.5mm, it provides a reliable crush seal for various engine bolts and oil plugs. Using an original part ensures the correct material hardness for optimal compression and sealing performance under high pressure.

This versatile washer fits an extensive range of models from 1994 to 2026. It is compatible with KTM models including the 125-500 EXC, SX, and XC series, as well as larger displacement bikes like the 690 Enduro, 990 Adventure, and 1290 Super Duke. It also fits Husqvarna FC, FE, TC, and TE models, and GasGas EC, EX, and MC motorcycles across nearly all engine sizes and generations.

Manufactured from high-quality copper, this seal ring is designed to deform slightly when tightened, effectively filling imperfections between surfaces to prevent oil or fluid leaks. Its durable construction is built to withstand the extreme temperatures and pressures found within the engine casing and oiling circuits. Replacing this washer during every oil change or maintenance interval is highly recommended to prevent seepage and ensure engine longevity.

For best results, ensure both mating surfaces are clean and free of debris before installation. Do not reuse old copper washers, as they become work-hardened and may not seal effectively a second time. Always follow the manufacturer's torque specifications for the specific bolt or plug being secured to avoid over-compressing the ring or damaging the threads.

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