GMB 520-8130 Mechanical Fuel Pump

GMB 520-8130 Mechanical Fuel Pump

The GMB 520-8130 mechanical fuel pump is built to meet or exceed OEM specifications for dependable fuel delivery in classic Jeep applications. It is an OEM standard replacement for service on 1972-1975 Jeep CJ5, 1972-1975 Jeep Wagoneer, 1974-1975 Jeep Cherokee, 1974-1975 Jeep J10, and 1974-1975 Jeep J20.

Key Features

• OEM standard mechanical fuel pump construction
• Manufactured to meet or exceed OEM specifications
• No gasket required
• Strainer not required
• Direct replacement part number: 520-8130

Detailed Description

This GMB fuel pump is intended for carbureted fuel systems that use a mechanical pump mounted on the engine. The OEM standard grade supports consistent fuel transfer for Jeep CJ5, Wagoneer, Cherokee, J10, and J20 models within the listed 1972-1975 applications. The 520-8130 part number is also cross-referenced to Airtex 6505 for the same application.

What It Helps Address

• Hard starting caused by weak fuel delivery
• Fuel starvation during acceleration or load changes
• Low fuel pressure from a worn mechanical pump
• Intermittent stalling related to inconsistent pump output
• Driveability issues on classic Jeep fuel systems

Installation Notes and Tips

Verify the vehicle’s year, model, and fuel system layout before installation. This pump is listed with no gasket required and no strainer required, so confirm the engine-side sealing surface and existing fuel line routing are in good condition. For best results, inspect the fuel lines, tank pickup, and carburetor inlet for contamination or restriction before replacing the pump.

Quality Assurance

GMB manufactures this mechanical fuel pump to meet or exceed OEM specifications and to OEM standard grade expectations. The 520-8130 is a direct-fit replacement for the listed Jeep applications and is supported by multiple interchange references, including Carter M6505.