EBC424-21-55 Pilotjet N424/21-55

This EBC pilot jet, part of the N424/21 series, is a brass component used to calibrate the idle circuit of a motorcycle carburetor. Sized at 55, it is used to enrich the fuel mixture at the bottom end of the RPM range, which is often necessary for modified engines. For Harley-Davidson tuning, selecting the correct pilot jet is essential for achieving a crisp throttle response and a stable idle. EBC is a recognized leader in aftermarket components, ensuring that each jet provides an accurate flow for predictable engine behavior. These pilot jets are sold in packs of 4, making them ideal for workshop use.