Walker 255-1075 Fuel Injection Pressure Regulator

Fuel Injection Pressure Regulator for Nissan and Infiniti

Walker Products 255-1075 is a fuel injection pressure regulator built for select Nissan, Infiniti, and Mercury applications. It is engineered to meet or exceed OEM standards and specifications, making it a direct-fit service part for restoring proper fuel delivery control on covered vehicles.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Walker Products fuel system component backed by in-house engineering and product management
• Manufactured to meet or exceed OEM standards and specifications
• Application coverage for Nissan Frontier, Nissan Xterra, Nissan Quest, Nissan Pathfinder, Nissan Pickup, Nissan D21, Infiniti QX4, and Mercury Villager
• Part number 255-1075 for accurate ordering and cross-reference matching

Application Coverage

Fits 1999-2004 Nissan Frontier, N/A. Fits 2000-2004 Nissan Xterra, N/A. Fits 1993-2002 Mercury Villager, N/A. Fits 1993-2002 Nissan Quest, N/A. Fits 1997-2000 INFINITI QX4, N/A. Fits 1987-2000 Nissan Pathfinder, N/A. Fits 1995 Nissan Pickup, N/A. Fits 1993 Nissan D21, N/A.

This part cross-references Standard Ignition PR95 and Beck/Arnley 158-0727 for the same application.

Detailed Description

Walker Products 255-1075 is a replacement fuel injection pressure regulator for vehicles that rely on stable fuel pressure for consistent engine operation. On Nissan Pathfinder, Nissan Quest, Nissan Frontier, Nissan Xterra, and related applications, the regulator helps maintain the fuel pressure control needed for proper injector performance and drivability. Walker Products has supplied fuel system components since 1946 and supports production with manufacturing, engineering, and technical documentation resources.

Common Issues This Part Can Address

• Fuel pressure that is too high or too low
• Hard starting or extended crank time
• Rough idle or unstable engine operation
• Fuel odor or rich-running symptoms related to pressure control
• Poor throttle response caused by inconsistent fuel delivery

Installation Notes and Tips

Verify the vehicle application by year, make, and model before installation. Inspect the fuel system for contamination, damaged seals, or related wear that could affect regulator performance. Follow the service procedure for the specific Nissan or Infiniti platform to ensure correct fitment and fuel system integrity. Part number 255-1075 should be matched carefully when replacing an original regulator.

Quality Assurance

Walker Products is an ISO 9001 and IATF 16949 certified manufacturer focused on fuel system and engine management components. The company states that its parts are produced to meet or exceed OEM standards and specifications, with technical support and application data maintained by its own engineering and product teams.