-12 Remote Relief Valve

The Peterson Fluid -12 Remote Relief Valve (Part No. 09-0161) is a fully adjustable external oil pressure relief valve engineered for high-performance and race-spec engine systems. This aluminum relief valve features 12 AN male inlet and outlet ports with a dedicated 10 AN male relief line fitting, delivering precise pressure regulation in custom cooling and lubrication circuits where space and weight are critical constraints.

The valve's adjustable design allows technicians to dial in system pressure across a wide range, making it suitable for diverse engine configurations—from naturally aspirated builds to turbocharged applications. The red anodized aluminum construction resists corrosion while keeping the overall unit lightweight at 0.84 pounds. The external port configuration permits remote mounting away from the engine block, reducing heat exposure to sensitive adjustment mechanisms and simplifying installation in tight engine bay layouts. The 12 AN ports ensure adequate flow capacity for high-volume oil pump systems common in racing and performance automotive applications.

This relief valve is purpose-built for enthusiasts and shops assembling custom engine lubrication systems, supercharger plumbing, or remote oil cooling setups where factory relief mechanisms are inadequate or unavailable. The ability to adjust cracking pressure on-the-fly supports tuning workflows and system diagnostics. Peterson Fluid specializes in fluid management for motorsports, and this model reflects that expertise through straightforward, functional design that prioritizes reliability in demanding thermal and pressure environments.

Whether integrating an auxiliary cooling loop, managing multiple fuel injection pump feeds, or protecting high-pressure auxiliary systems, the -12 Remote Relief Valve provides manual pressure control without complex electronic oversight, making it a dependable choice for race-prepped engines, hot rods, and specialized industrial fluid systems.