Carter Fuel Pump 152 875: The Ultimate Replacement Guide for Your GM Vehicle

If you own a GM truck, van, or SUV from the late 1980s through the early 2000s and need a direct-fit, reliable fuel pump replacement, the Carter Fuel Pump 152 875 (also known as P7549) is your best bet. This in-tank electric fuel pump module is specifically designed for GM Throttle Body Injection (TBI) systems and delivers the correct fuel pressure of 4 to 6.5 PSI . It's a complete assembly that includes the pump motor, fuel strainer, fuel level sender, and wiring harness, making it a true plug-and-play replacement that restores optimal fuel delivery and resolves common drivability issues like hard starting, stalling, and poor acceleration . Whether you're a DIY enthusiast or a professional mechanic, the Carter 152 875 is a trusted choice backed by decades of Carter's reputation for quality.

Key Specifications and Performance

The Carter 152 875 is engineered to meet or exceed OEM specifications. Here are the critical performance numbers you need to know:

1. Operating Voltage: Designed for standard 12-volt automotive electrical systems .

2. Flow Rate: Typically delivers between 30 to 40 gallons per hour (GPH), which is ample for TBI systems and carbureted engines with electric pumps within its intended application range .

3. Fuel Pressure: Generates approximately 4 to 6.5 PSI. This is the critical specification for GM TBI systems. Too high or too low pressure will cause significant engine performance problems, and the 152 875 is calibrated to meet this specific requirement .

4. Fittings: Utilizes standard SAE J2044/J2045 quick-connect fuel line fittings, compatible with 3/8" fuel supply lines and 5/16" or 1/4" return lines. Installation kits usually include the necessary adapters .

5. In-Tank Design: The pump is positioned inside the fuel tank, submerged in fuel. This provides several benefits: the fuel acts as a coolant for the pump motor, dampens pump noise, and helps prevent vapor lock by maintaining positive pressure on the inlet side .

Primary Vehicle Applications

The Carter 152 875 is primarily engineered as a direct replacement for the original fuel pump modules installed in a vast number of GM vehicles, particularly those with Throttle Body Injection (TBI) fuel systems from the late 80s and 90s. Key application categories include:

- Full-Size GM Trucks (C/K Series): Chevy/GMC C1500, K1500, C2500, K2500, C3500, K3500 pickups from approximately 1987 through 1995 models (older body style). Coverage often extends into the mid-1990s depending on engine configuration .

- Full-Size GM Vans (G-Series): Chevy G10, G20, G30 vans from the same era .

- Marine Applications: The Carter 152 875 is also used as a low-pressure supply pump on many carbureted marine engines, including Indmar and PCM engines, up to 2007 . It is a marine-grade, Coast Guard approved fuel pump . For example, it is used on PCM GT40 engines .

Why Choose the Carter 152 875 Over a Generic Pump?

Using a generic pump that doesn't match your car's specifications is a common mistake. Fuel pumps are not universal; they vary in flow rate, pressure, and electrical connectors . The Carter 152 875 is a complete module assembly, which means it incorporates not just the pump motor but also the fuel strainer, fuel level sender unit, reservoir, electrical connector, and integrated wiring harness . Replacing the entire module ensures all wear-prone parts are renewed simultaneously, offering a more complete repair than simply replacing just the pump motor alone .

Comparison with Other Carter Part Numbers

Some users have noted that the Carter 152 875 is cross-referenced with part number P4389 . If you remove your old pump and see the Carter 152 875 sticker, you can use P4389 as a substitute. However, be careful about fitting sizes—some users have found that the inlet and outlet threads on the replacement need to be 3/8" . The Indmar and PCM marine part number equivalent is RA080018 .

Installation Tips

The Carter 152 875 is designed for ease of installation. It is a direct-fit in-tank pump module, so the installation process involves removing the fuel tank or accessing the pump through an access panel, then swapping the old module for the new one.

1. Wiring: The pump has two leads: one ground and one power. It is a DC motor, so if the connectors are hooked up in reverse, the pump will run backwards. No harm will be done, but you can check the polarity by looking for "+" markings on the terminals .

2. Fuel Line Connections: Use the quick-connect fittings. Ensure the O-rings are properly seated to prevent leaks.

3. Filter Replacement: Always replace the fuel filter at the same time. A new fuel filter costs $10–$40 and can prevent premature failure of your new pump .

Common Symptoms of a Failing Fuel Pump

If you're experiencing any of the following symptoms, your fuel pump may be failing:

• Hard starting: The engine cranks for a long time before starting .
• Power loss under load: The vehicle sputters or loses power when accelerating or climbing hills .
• Stalling when hot: The engine dies when it reaches operating temperature .
• Whining noise from the fuel tank: A loud whining or buzzing sound from the tank area indicates pump wear .

KEMSO Fuel Pump Recommendation

When you are ready to replace your fuel pump, consider the KEMSO brand for a superior alternative. KEMSO fuel pumps are designed as high-performance, OEM replacement units. They meet or exceed the original factory specifications for your vehicle, ensuring direct bolt-in compatibility without any modifications . Every KEMSO fuel pump comes with a lifetime warranty, which means if it ever fails due to a manufacturing defect, you are covered for the entire life of the pump . This is a significant advantage over generic aftermarket pumps.

To browse their full selection of fuel pumps for American, Asian, and European vehicles, visit the official KEMSO website: https://www.kemsoracing.com/. Their product pages include detailed fitment information, specifications, and installation guidance.

Final Thoughts

The Carter Fuel Pump 152 875 is a reliable, direct-fit solution for GM TBI vehicles and marine applications. It delivers the correct fuel pressure, includes all necessary components, and is backed by a trusted brand. However, for those who want the peace of mind of a lifetime warranty and guaranteed OEM-quality performance, KEMSO offers an excellent alternative. Don't wait until your fuel pump fails completely—address the symptoms early and keep your vehicle running smoothly for years to come.

For more information and to purchase your KEMSO fuel pump, go to: https://www.kemsoracing.com/