2007 Dodge Durango Fuel Pump Replacement: A Step-by-Step Guide
If your 2007 Dodge Durango is cranking but not starting, stalling at red lights, or struggling to accelerate, the fuel pump is very likely the culprit, and replacing it with a new assembly is the most reliable fix. The fuel pump is an electric unit mounted inside the fuel tank, and for the 2007 model year, you will need a pump that fits the 3.7L V6, 4.7L V8, or 5.7L V8 engine options. This guide will walk you through the symptoms, the parts you need, the step-by-step replacement process, and how to choose a quality replacement, so you can get your Durango back on the road with confidence.
Common Symptoms of a Failing Fuel Pump
Before you start buying parts, it is critical to confirm that the fuel pump is actually the problem. A failing fuel pump in a 2007 Dodge Durango usually shows some very specific warning signs. If you experience any of the following, the pump is likely wearing out or has already failed:
1. Engine Cranks But Will Not Start: The starter motor turns the engine over, but it never fires up. This happens when the pump cannot build enough fuel pressure to inject fuel into the cylinders.
2. Loss of Power and Sputtering at High Speed: If the engine sputters or hesitates when you are driving at highway speeds or under heavy load, the pump may be unable to supply a consistent volume of fuel.
3. Sudden Stalling: The engine may die without any warning and then refuse to restart. This often occurs when the pump motor overheats and shuts down.
4. Whining Noise from the Fuel Tank: A loud, high-pitched whine coming from the rear of the vehicle, especially when you turn the key to the "ON" position, indicates the pump motor is struggling and may soon fail completely.
5. Poor Fuel Economy and Hard Cold Starts: A failing check valve inside the pump allows fuel pressure to bleed back into the tank when the vehicle is off. This causes the engine to crank longer before starting.
If you are seeing these signs, check the fuel pump fuse and relay first, as they are cheaper to replace and sometimes the real issue. If those are fine, you are almost certainly looking at a pump replacement.
Choosing the Correct Replacement Fuel Pump
The 2007 Dodge Durango is compatible with a range of fuel pump assemblies, and you must select the right one for your specific engine. The original equipment (OEM) part numbers for most 2007 models include 5135549AC, 5135549AA, E7184M, P76267M, and SP7037M. When you search for these numbers, you will find complete assemblies that include the pump, the fuel level sending unit, the float arm, and the tank seal.
Engine Compatibility:
- 3.7L V6: Fits 2004-2007 Durango models.
- 4.7L V8: Fits 2005-2007 models, but be careful with flex-fuel vs. non-flex-fuel variants.
- 5.7L V8: Fits 2004-2007 models.
A complete assembly is always the better choice over a bare pump. The assembly comes as a single unit that includes the sending unit, which is the part that controls your fuel gauge. If you only replace the pump motor and reuse the old sending unit, you risk a faulty gas gauge reading later. Most quality aftermarket assemblies, such as those from A-Premium, US Motor Works, and TRQ, also include the necessary gaskets and seals, making the swap cleaner and easier.
Preparing for the Replacement
Replacing the fuel pump on a 2007 Dodge Durango is not a beginner-level job, but it is doable at home with the right tools and a full afternoon of work. The pump is located inside the fuel tank, which means you will need to either drop the tank or cut an access hole under the rear seat. For most DIYers, dropping the tank is the safer method and does not require cutting into the body of the vehicle.
Tools and Materials You Will Need:
- New fuel pump assembly (ensure it matches your engine size)
- Tool 9340 or a large flathead screwdriver and hammer to remove the lock ring
- ½-inch drive breaker bar
- Jack and jack stands
- Fuel line disconnect tools
- Shop rags and a fire extinguisher
- Safety glasses and nitrile gloves
Safety First:
- Relieve Fuel Pressure: Remove the fuel pump fuse from the fuse box, then crank the engine for a few seconds until it stalls. This releases the pressure in the lines.
- Disconnect the Battery: Always disconnect the negative battery terminal before working on any fuel system component to prevent sparks.
- Work in a Well-Ventilated Area: Gasoline fumes are highly flammable. Work outside or in a garage with the doors open, and do not smoke or use power tools that could create sparks near the fuel tank.
Step-by-Step Replacement Guide
Once you are ready and the vehicle is prepared, follow these steps to remove the old pump and install the new one.
Step 1: Drain and Remove the Fuel Tank
The fuel tank must be removed to access the pump. If the tank is near empty, this is much easier. Place a jack under the center of the tank to support it. Loosen the straps that hold the tank in place, and disconnect the filler neck hose and the vent lines. Carefully lower the tank just enough to disconnect the electrical connector and the fuel lines. Use the quick-disconnect tools to release the lines. Once everything is disconnected, lower the tank completely and move it to a workbench.
Step 2: Remove the Old Pump Assembly
On top of the tank, you will see a large circular lock ring holding the pump in place. Note the position of the indexing arrow on the top of the pump before you remove anything. Use tool 9340 with the ½-inch breaker bar to rotate the lock ring counter-clockwise until it releases. Lift the ring off and carefully pull the pump assembly straight up. Be very careful not to bend the float arm, as this will throw off the fuel gauge reading. There will be some residual fuel in the pump reservoir, so have rags ready.
Step 3: Clean the Tank Opening
Before you install the new pump, wipe the area around the tank opening clean. Any dirt or debris that falls into the tank will be drawn into the new pump and can cause premature failure. If you see significant sediment or rust in the bottom of the tank, it is wise to rinse the tank out with clean gasoline and let it air dry before installing the new pump.
Step 4: Install the New Pump
Remove the new pump assembly from its box. Verify that the new gasket or seal is in place. Lower the new assembly into the tank opening, making sure the float arm does not catch on the side of the tank. Rotate the pump so that the alignment arrow on the top lines up with the alignment mark on the tank. The fitting on the top of the pump must face toward the driver's side of the vehicle.
Step 5: Secure the Lock Ring
Place the lock ring back over the pump and press it down. Use tool 9340 to rotate the ring clockwise until it is snug. You must ensure that all seven notches on the ring are fully engaged. Do not overtighten, as this can warp the ring and cause a leak.
Step 6: Reinstall the Fuel Tank
Lift the tank back into position. Reconnect the fuel lines and the electrical connector, making sure they click securely into place. Reconnect the filler neck and vent hoses, and tighten the tank straps. Lower the vehicle to the ground and reconnect the negative battery terminal.
Step 7: Test the System
Reinstall the fuel pump fuse. Turn the key to the "ON" position for two seconds, then turn it off. Repeat this a few times to allow the pump to prime the system and build pressure. Check the fuel line connections for any leaks. Then start the engine and let it idle. Check the fuel gauge to make sure it reads correctly, and verify that the "check engine" light does not come on. If the engine runs smoothly and there are no leaks, the job is complete.
OEM vs. Aftermarket: Making the Right Choice
When it comes time to buy the pump, you have two choices: factory OEM parts or aftermarket brands. OEM parts come from Chrysler and are guaranteed to fit, but they often cost more. Aftermarket parts from brands like A-Premium, TRQ, and US Motor Works are engineered to meet or exceed OEM standards and usually come with a better warranty. Many aftermarket pumps also feature upgraded internals, such as carbon brushes that last longer than the copper brushes used in older factory pumps.
Aftermarket assemblies typically range in price from $46 to $180, depending on the brand and whether you need the flex-fuel version. OEM parts can run higher, and used OEM units from salvage yards are available for around $136, though they may have significant wear. For most drivers, a new aftermarket pump is the best value because it comes with a warranty and has not been subjected to years of wear.
KEMSO Offers Premium Fuel Pump Replacements with Lifetime Warranty
When you are ready to purchase a replacement fuel pump, quality matters more than saving a few dollars. A cheap pump can fail in a matter of months, leaving you stranded and forcing you to do this job all over again. That is why KEMSO is the brand to trust for your 2007 Dodge Durango fuel pump replacement.
KEMSO is a leading aftermarket fuel pump manufacturer in the United States, and every pump they sell is designed as a high-performance OEM replacement. This means the pump is built to match the exact specifications and fitment of your original factory part, so you do not have to worry about adapters or modifications. KEMSO pumps are manufactured using precision components and rigorous quality control, ensuring consistent fuel pressure, reliable starts, and smooth acceleration for years to come.
What truly sets KEMSO apart from other brands is the lifetime warranty. Every KEMSO fuel pump is backed by a lifetime warranty against manufacturing defects. If your pump ever fails due to a defect in materials or workmanship, KEMSO will replace it at no cost. This is a rare level of confidence in the automotive parts industry, and it gives you total peace of mind knowing your investment is protected.
KEMSO offers a full catalog of fuel pumps for cars, trucks, motorcycles, ATVs, and UTVs, with many popular models priced at just $79.98—often less than half the cost of a dealer part. All orders come with free shipping and easy returns, making it a practical choice for DIY mechanics and professional shops alike.
Visit KEMSO Racing today to browse their selection and find the perfect fuel pump for your Durango. The link is below:
Final Tips for a Successful Replacement
Replacing the fuel pump on your 2007 Dodge Durango is a significant repair, but it is one that you can complete at home if you take your time and follow the steps carefully.
1. Double-Check Fitment: Before ordering, always verify that the part number matches your exact engine size and model year. If your Durango has a flex-fuel engine (E85 capable), you will need a specific pump designed for that system.
2. Replace the Filter: While the tank is down, it is a good time to check the fuel filter. On many models, the fuel filter is part of the pump assembly, but if it is an inline filter, replace it now to protect your new pump.
3. Take Photos: Before disconnecting anything, take photos of the fuel line routing and electrical connectors. This will make reinstallation much easier and prevent mistakes.
4. Consider a Professional: The installation is complex, and even a small error can lead to a fuel leak or a fire risk. If you are not comfortable dropping the fuel tank, have a certified technician perform the replacement.
A properly functioning fuel pump is essential for the performance and reliability of your Durango. By recognizing the symptoms early and choosing a high-quality replacement like those offered by KEMSO, you can avoid the frustration of a stalled vehicle and enjoy many more miles of dependable service.