30cc Accelerator Pump Springs (10)

The 30cc Accelerator Pump Springs (10) from Holley are OEM-grade replacement springs engineered for 30 cubic centimeter accelerator pump assemblies used in high-performance carburetors. These springs maintain consistent fuel delivery during throttle transitions, preventing flat spots and hesitation that occur when the accelerator pump loses tension over time. Whether you're rebuilding a classic Holley carb or servicing multiple units in a performance shop, this 10-pack ensures you have reliable spares on hand for immediate installation.

Constructed from natural steel, these accelerator pump springs deliver the precise spring rate required to return the pump plunger to its resting position after each throttle blip. The correct spring tension is critical—too weak and the pump underfeeds; too stiff and it creates excessive back-pressure. Holley's OEM specification ensures the 30cc pump displaces its full volume with each stroke, supplying the momentary fuel enrichment needed for smooth acceleration. The steel composition resists corrosion and maintains consistent performance across temperature extremes, making these springs suitable for both street and competition applications.

Carburetor rebuilders, vintage muscle car enthusiasts, and racing teams benefit most from stocking this 10-piece set, as accelerator pump springs wear or fatigue with extended use and require periodic replacement during full carb overhauls. Installation is straightforward—simply remove the pump cover, swap the old spring for a fresh one, and reassemble. These springs are compatible with all Holley 30cc accelerator pump designs across their carburettor lineup, making them a universal solution for maintaining proper fuel delivery in any application running that pump displacement size.