30cc Accelerator Pump Springs (10)

The 30cc Accelerator Pump Springs (10) from Holley are OEM-grade replacement springs designed specifically for 30 cubic centimeter accelerator pump assemblies used in high-performance carburetors. These springs are essential for maintaining consistent fuel delivery during throttle transitions, which helps prevent flat spots and hesitation that can occur when the accelerator pump loses tension over time.

Constructed from high-quality steel, these accelerator pump springs provide the precise spring rate necessary to return the pump plunger to its resting position after each throttle blip. The correct spring tension is critical—if the spring is too weak, the pump underfeeds; if too stiff, it creates excessive back-pressure. Holley's OEM specification ensures that the 30cc pump displaces its full volume with each stroke, supplying the momentary fuel enrichment needed for smooth acceleration.

Carburetor rebuilders, vintage muscle car enthusiasts, and racing teams will benefit most from stocking this 10-piece set, as accelerator pump springs can wear or fatigue with extended use and require periodic replacement during full carb overhauls. Installation is straightforward—simply remove the pump cover, swap out the old springs, and reassemble.