GMB 530-8120 Mechanical Fuel Pump

OEM Standard Mechanical Fuel Pump for GM V8 Applications

The GMB 530-8120 mechanical fuel pump is built to meet or exceed OEM specifications for dependable fuel delivery in classic GM applications. It is an OEM standard replacement for select Chevrolet Camaro, Caprice, Monte Carlo, Impala, Malibu, and Pontiac Firebird, Grand Prix, Bonneville, and Parisienne models.

With no gasket required and no strainer required, this pump supports a straightforward replacement on the listed applications. The GMB 530-8120 is a direct-fit style mechanical fuel pump for vehicles that use the specified 3-line or deep-can configurations.

Key Features

• Mechanical fuel pump for air and fuel delivery systems
• OEM standard item grade for stock-style replacement
• Manufactured to meet or exceed OEM specifications
• No gasket required
• Strainer not required
• Cross-reference: Airtex Fuel Pumps 40777; Carter M6101

Detailed Description

This GMB fuel pump is engineered for classic GM carbureted applications where consistent mechanical fuel delivery is required. The 530-8120 part number is used across multiple Chevrolet and Pontiac platforms, including 1970-1975 Chevrolet Camaro, 1978-1981 Chevrolet Camaro, 1976 Chevrolet Camaro, 1981 Pontiac Firebird, 1978 Pontiac Firebird, 1982-1985 Chevrolet Caprice Police Package, 1982-1985 Chevrolet Impala, 1982-1984 Chevrolet Monte Carlo Police Package, 1982-1983 Chevrolet Malibu Police Package, 1985-1988 Chevrolet Caprice, 1987-1988 Chevrolet Monte Carlo, 1987 Pontiac Grand Prix, 1986 Chevrolet Caprice with 3 Line Pump; Deep Can; w/o Taxi Package, 1985-1986 Chevrolet Monte Carlo with 3 Line Pump; Deep Can, 1986 Pontiac Bonneville with 3 Line Pump; Deep Can, 1986 Pontiac Grand Prix with 3 Line Pump; Deep Can, and 1986 Pontiac Parisienne with 3 Line Pump; Deep Can. If you are replacing a worn mechanical fuel pump on a Chevrolet Camaro, Caprice, or Pontiac Firebird application, this part number is a direct catalog match for the listed vehicles.

Common Problems This Part Addresses

• Hard starting caused by weak fuel pressure
• Fuel starvation under load or at higher engine demand
• Engine stalling from inconsistent mechanical fuel delivery
• Fuel delivery loss from a worn pump diaphragm or internal wear
• Driveability issues on carbureted GM V8 applications

Installation Notes and Tips

• Verify the vehicle’s fuel pump configuration before ordering, especially 3-line pump and deep-can applications.
• Confirm the part number 530-8120 against the original pump and vehicle build details.
• Inspect fuel lines and mounting surfaces before installation.
• Follow factory service procedures for mechanical fuel pump replacement.
• Use the listed fitment notes to match Police Package and w/o Taxi Package applications correctly.

Quality Assurance

GMB manufactures this pump to OEM standard requirements and states that it meets or exceeds OEM specifications. The 530-8120 is built for the listed Chevrolet and Pontiac applications with the fit and function expected from a stock-style mechanical fuel pump replacement.