#6 Check Valve Spring 90-250 Pound Range

The ENDERLE #6 Check Valve Spring in the 90–250 PSI range is a precision fuel system component engineered for high-performance fuel injection systems, particularly in drag racing, fuel injection conversions, and nitrous oxide applications. This check valve spring is critical for maintaining proper fuel line integrity and preventing backflow in carbureted and fuel-injected engines operating under extreme boost and high-fuel-pressure conditions.

The 90–250 PSI rating indicates the spring's cracking pressure range, which is the threshold at which the check valve opens to allow fuel flow while resisting backpressure. ENDERLE, a legendary name in race fuel systems, manufactures springs with tight tolerances to ensure consistent valve response across repeated thermal and pressure cycles. The compact dimensions (1.85 x 0.65 x 2.95 inches) and lightweight construction (0.01 lbs) make this spring ideal for OEM or aftermarket fuel regulator and check valve assemblies.

Mechanics and engine builders selecting a #6 Check Valve Spring benefit most when tuning fuel system pressure for turbocharged, supercharged, and nitrous oxide applications. This spring helps ensure that your fuel pump and injectors operate within safe parameters, enhancing reliability and performance in high-horsepower setups.