Shut Off Valve -4AN

The Shut Off Valve -4AN is an essential fluid control component designed for custom fuel systems, coolant circuits, and high-performance fuel injection setups where precise flow isolation is critical. Whether you're building a street rod, modifying a classic muscle car, or fabricating a race-spec fuel system, this inline shutoff valve gives you the ability to isolate fuel or coolant lines without breaking hose connections or draining the entire system. This is particularly valuable during fuel system diagnostics, component swaps, or emergency fuel shutoff situations.

The -4AN port designation indicates this valve accepts standard AN4 (1/4-inch nominal) fittings, the industry-standard connector size for mid-range fuel systems and coolant circuits in street and motorsport applications. The compact 3.54-inch length and minimal 0.16-pound weight make it ideal for tight engine bay installations where space is at a premium. The valve features a lever-operated ball mechanism that provides smooth, reliable on-off control with positive tactile feedback, ensuring you know exactly when flow is halted—critical for safety and system integrity during maintenance or emergency shutoff scenarios.

This shutoff valve is ideal for mechanics and enthusiasts working on fuel system upgrades, EFI conversions, or high-flow cooling modifications on vehicles with custom fuel rails or remote-mounted fuel cells. Installation is straightforward: simply thread the -4AN ports into your existing hose lines using compatible -4AN male or female fittings. Whether you're building a competition vehicle or maintaining a street machine, the Shut Off Valve -4AN provides reliable, repeatable flow control that meets the demands of professional fabrication and serious DIY modification work.