.075in Bypass Pill Main Jet

The .075in Bypass Pill Main Jet is a precision metering component designed for carbureted fuel injection systems, particularly in high-performance and racing applications. This brass jet serves as a critical control element that regulates fuel bypass flow under specific engine operating conditions. Carburetor tuning specialists, engine builders, and vintage fuel system technicians rely on these bypass jets to achieve optimal air-fuel mixture balance and reliable engine performance across varying load states.

Manufactured by ENDERLE, a trusted name in fuel systems, this bypass pill features a precisely machined 0.075-inch internal diameter that controls the exact volume of fuel routed through the bypass circuit. The brass construction provides excellent durability, corrosion resistance, and compatibility with gasoline and most fuel additives. The main jet's compact dimensions (1.55 × 0.95 × 2.1 inches) allow for seamless integration into tight carburetor galleries while maintaining the exacting tolerances required for consistent metering across engine speed ranges.

This component is essential for anyone rebuilding or fine-tuning ENDERLE carburetors or compatible bypass fuel systems. Whether you're restoring a classic hot rod, optimizing a competition engine, or maintaining precision racing equipment, having the correct bypass jet size is critical to avoiding rich or lean conditions that compromise performance and reliability. The 0.075in specification suits mid-range displacement engines operating at moderate to high RPMs; selection of the proper jet size depends on overall fuel system configuration, engine displacement, and tuning objectives.