Standard Ignition PR134 Fuel Injection Pressure Regulator

Fuel Pressure Control for Classic EFI Systems

Standard Ignition PR134 is a fuel injection pressure regulator for gas systems that helps maintain the specified fuel pressure at the rail. It operates at 37 psi and uses a straight nipple orientation, making it a direct-service replacement for select classic import applications.

Compatible With 1974-1983 Porsche 911, 1975-1979 Volkswagen Beetle, 1980-1983 Volkswagen Vanagon, 1980-1983 Jaguar XJS, and 1981-1983 Jaguar XJ12. Standard Ignition PR134 is built for vehicles that need stable fuel delivery for consistent injector performance.

Key Features

• Fuel injection pressure regulator for gas systems
• 37 psi operating pressure
• Straight nipple orientation for straightforward hose routing
• Includes caution sheet
• Standard Ignition PR134 replacement part

Detailed Description

The Standard Ignition PR134 regulates fuel pressure in the injection system to help keep delivery within the specified range. This matters on older fuel-injected vehicles where pressure control affects starting, idle quality, throttle response, and overall drivability. It is a practical replacement for select Porsche 911, Volkswagen Beetle, Volkswagen Vanagon, Jaguar XJS, and Jaguar XJ12 applications that call for a 37 psi regulator.

This part cross-references Gates 21709 for the same application. It also aligns with other listed interchange references for the same service position, including OE-style replacement numbers used in the fuel injection system.

What It Helps Address

• Fuel pressure that is too high or too low at the injector rail
• Hard starting caused by unstable fuel delivery
• Rough idle from inconsistent injection pressure
• Poor throttle response during acceleration
• Fuel system drivability issues on aging EFI components

Installation Notes and Tips

Verify the original regulator specification before installation, including pressure rating, nipple orientation, and fuel system type. Inspect vacuum and fuel hoses for wear, and confirm all connections are clean and secure before returning the vehicle to service. Use the included caution sheet as a reference during installation.

Quality Assurance

Standard Ignition supplies replacement ignition and fuel system components for service applications, and PR134 is cataloged with defined pressure and fitment data for accurate selection.