M18x1.5 Crankshaft Nut for KTM Husqvarna GasGas 250 300 - 54630029000

This M18x1.5 hex nut is a genuine OEM part designed specifically for the crankshaft assembly. It provides a secure and reliable fastening for critical engine components, ensuring the structural integrity of the rotating assembly during high-performance operation. As an original equipment manufacturer part, it guarantees precise threading and the material strength required for engine internals.

This nut fits an extensive range of models including the KTM 250 and 300 EXC, SX, XC, and XC-W from 1994 to 2025. It is also compatible with Husqvarna TC 250, TE 250/300, and TX 300 models, as well as GasGas EC, EX, and MC 250/300 series. Additionally, it supports older KTM 380 SX/MXC models and the Freeride 250 R, making it a versatile component for many generations of powersports engines.

Constructed from high-grade steel with a corrosion-resistant finish, this nut is built to withstand the intense heat and vibration of a high-revving engine. The specific M18x1.5 pitch ensures a tight, reliable lock on the crankshaft end. Replacing worn or damaged hardware during engine rebuilds is essential for preventing mechanical failure and maintaining peak performance.

When installing, always refer to your factory service manual for the specific torque settings required for your motorcycle model. Using a fresh OEM nut during assembly helps prevent thread stripping and ensures that the primary drive or flywheel remains properly seated. Check compatibility list below to see if this part fits your motorcycle model.