HPI Racing 101639 Top End Needle Valve Holder

HPI Racing 101639 Top End Needle Valve Holder

This is a genuine HPI Racing replacement top end needle valve holder for compatible HPI nitro engine carburetors. The holder secures the high-speed needle assembly, keeping your fuel mixture setting stable so the engine tune does not drift mid-run.

A worn or damaged holder makes consistent tuning nearly impossible, so this factory part is the right fix during carburetor service.

• Genuine HPI Racing replacement part #101639
• Top end needle valve holder
• Factory-spec carburetor component
• Keeps fuel mixture settings stable
• Installs during routine carburetor service