.019in Spring For Bypass

The Kinsler .019in Spring For Bypass (part number 3319) is a precision bypass valve spring engineered for fuel system regulation in high-performance and racing applications. This steel bypass spring is manufactured to exact wire diameter specifications, ensuring consistent pressure relief performance across engine load cycles. The 0.019-inch wire diameter provides the precise spring rate needed for reliable fuel bypass valve operation in carbureted and fuel-injected racing engines.

Bypass valve springs are critical components in fuel delivery systems, managing pressure differential between the main fuel line and return line. The spring rate directly affects when excess fuel redirects back to the tank, maintaining optimal fuel pressure regardless of engine speed or load conditions. Steel construction provides durability under sustained high-temperature operation typical of racing environments. Kinsler's engineering ensures this spring meets the exacting tolerances required for reliable valve cycling without fatigue failure or pressure creep over extended race seasons.

This spring is designed for builders and technicians assembling or servicing Kinsler bypass valve assemblies in competitive racing fuel systems. Whether restoring original specifications or tuning fuel pressure characteristics, having the correct spring rate ensures stable engine performance and prevents fuel delivery anomalies that compromise throttle response or engine reliability at the track. The lightweight design (0.01 lbs) minimizes inertia load while maintaining spring integrity under repeated cycling.

Kinsler fuel system components are recognized in drag racing, circle track, and road racing communities for precision manufacturing and consistent performance. This bypass spring represents the kind of specification-critical component that separates properly engineered fuel systems from marginal ones—where fuel pressure stability directly influences whether an engine makes peak power reliably.