Inline Non-Return Check Valve for 5/16 Inch Fuel and Coolant Lines SKU: QT59906R

When small engine fuel systems lose prime or coolant lines allow backflow, you get hard starting, erratic operation, and overheating problems. This inline check valve creates a reliable one-way flow barrier that keeps fuel pumps primed and prevents coolant circulation reversal that leads to hot spots.

Key Benefits

• Prevents fuel drain-back that causes hard starting on small engines
• Lightweight nylon construction resists fuel degradation and corrosion
• Compact design fits tight spaces where larger valves won't work
• Quick barbed connections eliminate threading or special fittings

Getting this valve installed correctly solves more starting problems than most people realize. When fuel drains back through the system overnight, your engine has to re-prime every time you start it.