OEM Flywheel Screw for KTM 250-500 EXC-F SX-F fits 2007-2026 - 77339010100

This genuine OEM Flywheel Screw is a critical engine fastener designed to securely mount the flywheel assembly to the crankshaft. It plays a vital role in maintaining the stability of the ignition system, ensuring that timing remains precise even under high-RPM racing conditions. As an original part, it offers the exact fit and material strength required for internal engine components.

This screw is compatible with a vast range of models, including the KTM 250, 350, 450, and 500 EXC-F, SX-F, XC-F, and SMR from 2007 to 2026. It also fits Husqvarna FC, FE, FS, and FX models (250cc to 501cc) and GasGas EC, MC, and EX four-stroke motorcycles. This includes specialized versions such as the Six Days, Factory Edition, Rockstar Edition, and Heritage models.

Manufactured from high-tensile steel, this flanged screw is engineered to handle the extreme torque and thermal stress found inside the crankcase. The specialized coating helps prevent corrosion and ensures a consistent clamp load. Replacing this fastener during major engine service or flywheel maintenance is a standard practice to prevent vibration-induced loosening or crankshaft damage.

When installing this part, it is essential to follow the manufacturer's specified torque values and use the recommended thread-locking compound. Proper installation ensures the longevity of your engine's rotating assembly and prevents costly mechanical failures. Always inspect the crankshaft threads for debris before securing the new screw.

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