Auxiliary Spring 1.2mm for KTM 250/300 EXC & Husqvarna - 54637072500

This is an OEM auxiliary spring with 1.2mm wire diameter for the exhaust control system. It provides reliable tension and support in the exhaust valve mechanism. Direct replacement for KTM/Husqvarna part number 54637072500.

Compatible with 2001-2003 KTM 250 EXC, 250 EXC Six-Days, 250 SX, 250 SXS, 300 EXC, 300 EXC Six-Days, 300 MXC, 380 SX, 380 MXC; 2002 KTM 250 EXC, 250 EXC Six-Days, 250 SX, 300 EXC, 300 MXC, 380 SX; 2018 KTM 125 XC-W (EU), 2019 KTM 150 SX (EU/US), 150 XC-W (US); 2018 Husqvarna TX 125 (EU), 2019 Husqvarna TE 150 (US).

Made to OEM specifications for precise fit and performance in off-road conditions. Ensures smooth exhaust control operation and durability.

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