Carburetor Main Jet 440 for KTM, Husqvarna & GasGas 2017-2023 - 55431029440

This genuine OEM Carburetor Main Jet 440 is a precision-engineered component designed for accurate fuel metering. It plays a vital role in maintaining the correct air-fuel ratio at high throttle openings, ensuring your engine delivers peak performance and reliability.

This part is compatible with an extensive range of models, including KTM 125 SX, 150 SX, 250 SX, 250 EXC, 300 EXC, and XC/XC-W variants from 2017 to 2022. It also fits Husqvarna TC 125, TC 250, TE 150, TE 250, TE 300, and TX models (2017-2022), as well as 2021-2023 GasGas MC 125 and MC 250 models.

Manufactured from high-quality brass, this main jet offers exceptional durability and resistance to fuel additives. Using genuine parts ensures consistent flow rates, which is essential for smooth power delivery and preventing engine overheating caused by lean fuel mixtures.

When tuning your motorcycle for specific track conditions, altitudes, or temperatures, replacing the main jet is a standard maintenance task. Ensure the jet is free of debris and properly tightened to the manufacturer's specifications during installation.

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