Copper Seal Ring 8x12x1 for KTM, Husqvarna & GasGas 1994-2026 - 0603082121

This genuine OEM copper seal ring (8x12x1 mm) is a critical component for maintaining a leak-free hydraulic system on your motorcycle. Designed to DIN7603 standards, this crush washer provides a reliable seal for brake calipers, clutch slave cylinders, and various engine oil or coolant lines. Using original parts ensures the correct material hardness for optimal compression and sealing performance.

This versatile part is compatible with an extensive range of models from KTM, Husqvarna, and GasGas spanning from 1994 to 2026. It fits a wide variety of dirt bikes including the KTM 125-500 EXC, SX, and XC series, Husqvarna TE, FE, and FC models, as well as GasGas EC and MC ranges. It is also used on larger street and adventure models including the KTM 690 Enduro R, 990 Adventure, and Husqvarna 701 Supermoto.

Manufactured from high-quality copper, this washer is designed to deform slightly when tightened, filling imperfections between surfaces to prevent fluid leaks. It is highly resistant to heat and pressure, making it ideal for high-performance braking and clutch systems. Replacing these washers during every service or whenever a hydraulic line is loosened is essential for preventing air entry or fluid loss.

For the best results, ensure both mating surfaces are clean and free of debris before installation. Always follow the manufacturer's torque specifications to achieve the perfect crush without damaging the threads or the washer itself. Never reuse old copper washers, as they harden after the first use and will not seal effectively a second time.

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