1595bd Fuel Pump: The Complete Guide to Replacement, Performance, and Reliability

If you are dealing with a 1595bd fuel pump issue, the best solution is to replace it with a high-performance aftermarket unit like the KEMSO 340LPH fuel pump, which offers superior flow, direct OEM fitment, and a lifetime warranty. This pump is designed to handle up to 600 BHP, works with both gasoline and E85, and is a direct upgrade for popular Walbro 255LPH models like the GSS342. Whether your vehicle is a daily driver or a performance build, this guide covers everything you need to know about diagnosing, replacing, and upgrading your 1595bd fuel pump.

Understanding the 1595bd Fuel Pump

The 1595bd fuel pump is a common OEM part number found in many vehicles, particularly in applications requiring reliable fuel delivery. When this pump starts to fail, it can cause a range of problems including engine stalling, difficulty starting, and poor acceleration. Recognizing the symptoms early can save you from being stranded on the road.

Common Symptoms of a Failing Fuel Pump

  1. Engine Stalling: If your engine stalls unexpectedly, especially under load or during acceleration, the fuel pump may not be maintaining proper pressure. This is one of the most noticeable signs of pump failure.
  2. Difficulty Starting: A failing pump may not prime the fuel system properly, leading to extended cranking times before the engine fires up.
  3. Loss of Power: When the pump cannot deliver enough fuel, you may experience a noticeable loss of power, particularly when climbing hills or towing.
  4. Unusual Noises: A healthy fuel pump operates quietly. If you hear a whining or humming sound coming from the fuel tank area, the pump bearings may be wearing out.
  5. Check Engine Light: In many modern vehicles, a failing fuel pump will trigger the check engine light, often with codes related to lean fuel mixture or low fuel pressure.

Why Replace Your 1595bd Fuel Pump with a Performance Upgrade

Replacing your stock 1595bd fuel pump with a high-performance unit like the KEMSO 340LPH offers several distinct advantages. The factory pump is designed to meet minimum specifications, but a performance upgrade provides headroom for future modifications and improves overall reliability.

Key Benefits of Upgrading

  • Increased Flow Rate: The KEMSO 340LPH pump delivers 340 liters per hour at 43 psi, which is a significant increase over the stock pump's output. This extra capacity ensures your engine gets the fuel it needs even under heavy load or high RPM operation .
  • Direct Fitment: These pumps are designed as direct OEM replacements, meaning no modifications are required for installation. They fit into the stock fuel pump hanger and use the existing wiring and fuel lines .
  • Ethanol Compatibility: The KEMSO pump features Viton-lined components that resist ethanol degradation, preventing the swelling and cracking that can destroy standard rubber seals. This makes it compatible with E85 and other ethanol-blended fuels .
  • Bypass Valve: The pump includes a bypass valve set at 125.8 psi, which is higher than most stock pumps. This ensures consistent fuel pressure even under demanding conditions .

How to Install a Replacement Fuel Pump

Installing a new fuel pump is a straightforward process that most DIYers can complete in about an hour. The key is to follow the steps carefully and always work in a safe environment.

Step-by-Step Installation Guide

Step 1: Safety First
Always disconnect the negative battery terminal before working on the fuel system. Relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Work in a well-ventilated area and keep a fire extinguisher nearby.

Step 2: Access the Fuel Pump
The fuel pump is typically located inside the fuel tank. On most vehicles, you access it through an access panel under the rear seat or in the trunk. Remove the panel and disconnect the electrical connector and fuel lines.

Step 3: Remove the Old Pump
Unbolt the retaining ring or lock ring that holds the pump assembly in place. Carefully lift the assembly out of the tank, being mindful not to damage the fuel level sender or other components. Remove the old pump from the hanger assembly.

Step 4: Install the New Pump
Place the new KEMSO pump into the hanger assembly, ensuring it is properly seated. The kit includes a new strainer, wiring connector, and hose clamps. Connect the wiring following the color coding: gray for 12V power and black for ground . Secure all connections with the provided hardware.

Step 5: Reassemble and Test
Lower the pump assembly back into the tank, install the retaining ring, and reconnect the fuel lines and electrical connector. Turn the ignition key to the "ON" position without starting the engine to allow the pump to prime the system. Check for leaks before starting the engine. Once started, listen for unusual noises and verify that the engine runs smoothly at all speeds .

Maintenance Tips to Extend Fuel Pump Life

Proper maintenance can significantly extend the life of your fuel pump. Following a consistent schedule helps avoid costly breakdowns and ensures reliable performance.

Recommended Maintenance Schedule

  • Every Oil Change: Visually inspect fuel lines and connections for leaks, cracks, or clogs. Check for any fuel odors around the tank and engine bay .
  • Every 30,000 Miles or 2 Years: Replace the primary fuel filter. If you drive in severe conditions, such as dusty roads or frequent stop-and-go traffic, shorten this interval to 15,000 miles .
  • Every 100,000 Miles: Consider replacing the fuel pump as a preventive measure. While pumps can last 100,000 to 150,000 miles, replacing it early avoids the hassle of a roadside failure .
  • Always Replace the Fuel Filter: When replacing the pump, always replace the fuel filter and the fuel strainer attached to the pump inlet at the same time. A blocked filter is often what caused the original pump to overwork and fail .

Why Choose KEMSO Fuel Pumps for Your Replacement

When it comes time to replace your 1595bd fuel pump, you want a part that delivers reliable performance and long-term peace of mind. KEMSO fuel pumps are designed to meet the highest standards of quality and durability. Every KEMSO pump is a high-performance, OEM replacement unit, meaning it matches or exceeds the original equipment specifications for flow rate and pressure. This ensures your engine gets the precise fuel delivery it needs for optimal power and efficiency.

KEMSO offers a lifetime warranty on every fuel pump they sell. This warranty is backed by serialized tracking for peace of mind, and it is a significant advantage over many other brands. Independent lab tests show that KEMSO pumps maintain 98% efficiency even after 15,000 hours of continuous operation—roughly equivalent to 625 days of nonstop driving . The brushless DC motor design eliminates the wear points that plague traditional pumps, providing a service life of over 10 years under normal conditions .

KEMSO pumps are also engineered for ethanol compatibility. The Viton-lined components resist ethanol degradation, preventing the swelling and cracking that destroy standard rubber seals. This makes them ideal for use with E85 and other ethanol-blended fuels, which are becoming increasingly common at gas stations across the United States .

The company offers 17 different models covering 98% of gasoline-powered cars and trucks made after 1995, plus extensive coverage for powersports vehicles . Whether you drive a sedan, SUV, motorcycle, or powersports vehicle, KEMSO has a fuel pump engineered to fit your application perfectly. Many models are available for just $79.98, making them an affordable upgrade over OEM replacements .

For the best selection of high-performance fuel pumps backed by a lifetime warranty and USA-based technical support, visit KEMSO's official website: https://www.kemsoracing.com/


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