Check Valve

The Holley Accelerator Pump Check Valve (HLY26-41) is an essential component for carburetor builders, engine tuners, and performance enthusiasts who require dependable fuel delivery across various throttle conditions. This check valve is specifically designed to prevent fuel backflow, ensuring optimal accelerator pump operation and addressing issues like hesitation off-idle and stumbling during acceleration.

Engineered with precision tolerances, the Holley check valve features robust internal construction that can withstand the pulse cycles generated by the accelerator pump. It opens to allow fuel flow into the main jet circuit during pump activation and closes immediately to prevent reverse flow when pump pressure drops. This design helps mitigate vapor lock issues and ensures consistent fuel delivery.

Mechanics, carburetor technicians, and weekend builders will find this check valve beneficial for various applications, including tuning street engines and rebuilding classic muscle cars. Its compact dimensions of 3.5 x 1.15 x 5 inches facilitate easy installation in tight spaces, making it a trusted choice for engine builders seeking reliable performance.