Airtex 527 Mechanical Fuel Pump

Mechanical Fuel Pump for Classic Studebaker

The Airtex 527 mechanical fuel pump is a specific-fit replacement for classic Studebaker applications. It is built for non-fuel-injected vehicles and uses threaded inlet and outlet connections for a direct mechanical fuel delivery setup.

Key Features

• Meets or exceeds OEM specifications for fit and performance.
• Precision castings and hardened rockers support long service life.
• Advanced polymer diaphragm construction helps maintain consistent fuel delivery across multiple fuel blends.
• Threaded 1/8-27 UNF inlet and outlet fittings.
• Factory tested throughout manufacturing for consistent out-of-box performance.
• Gasket included; mounting hardware is not included.

Detailed Description

Airtex 527 is a mechanical fuel pump engineered for classic, performance, and other non-fuel-injected Studebaker vehicles. Its external mechanical design, 5.0 minimum pressure rating, and 15 flow rating make it a practical replacement for restoring fuel system operation on older carbureted applications. This part cross-references Carter M958 for the same application. The Airtex 527 is also identified by part number 527 for easy catalog matching.

What It Helps Solve

• Hard starting caused by weak or inconsistent fuel delivery.
• Fuel starvation from a worn mechanical pump.
• Loss of pressure in carbureted fuel systems.
• Fuel delivery issues on classic Studebaker vehicles with threaded pump connections.

Installation Notes and Tips

Fits 1941-1942 Studebaker Champion, N/A; Fits 1946 Studebaker Champion, N/A; Fits 1947-1948 Studebaker M5, N/A; Fits 1949-1953 Studebaker 2R10, N/A; Fits 1949-1953 Studebaker 2R15, N/A; Fits 1949-1953 Studebaker 2R5, N/A; Fits 1950-1954 Studebaker Champion, N/A; Fits 1954 Studebaker 3R10, N/A; Fits 1954 Studebaker 3R15, N/A; Fits 1954 Studebaker 3R5, N/A; Fits 1955 Studebaker E12, N/A; Fits 1955 Studebaker E7, N/A; Fits 1955-1956 Studebaker E10, N/A; Fits 1955-1956 Studebaker E5, N/A; Fits 1956-1958 Studebaker Transtar, N/A; Fits 1958 Studebaker 3E10, N/A; Fits 1958 Studebaker 3E5, N/A. Replace the fuel filter when servicing the pump, and verify threaded connection size before installation.

Quality Assurance

Airtex states that each pump is 100% tested during the manufacturing process to support consistent performance. The brand also builds these pumps to meet or exceed OEM specifications for fit and performance.