2006 Land Rover LR3 Fuel Pump: Complete Replacement Guide, Symptoms, and Costs

If you own a 2006 Land Rover LR3 and you are dealing with hard starts, stalling, or a whining noise from the fuel tank area, the fuel pump is likely the culprit. This guide covers everything you need to know about the 2006 Land Rover LR3 fuel pump, including symptoms of failure, replacement costs, part numbers, and installation tips. The bottom line: replacing a failing fuel pump on your LR3 is a straightforward repair that costs between $600 and $1,200 including parts and labor, and you can save significantly by doing it yourself with a quality aftermarket pump.

Why the Fuel Pump Matters on Your 2006 LR3

The fuel pump in your 2006 Land Rover LR3 is an in-tank electric turbine pump that delivers gasoline from the fuel tank to the engine at a system pressure of about 65 psi. Without it, your engine simply will not run. The LR3 uses a fuel pump module assembly that includes the pump motor, a float arm for the fuel sending unit, and an internal strainer. This assembly sits inside the fuel tank and is designed to last the life of the vehicle under normal conditions, but contamination, overheating, and electrical issues can cause premature failure.

Common Symptoms of a Failing LR3 Fuel Pump

You don't need to be a mechanic to notice a dying fuel pump. Watch for these warning signs:

  1. Difficulty starting the engine. If your LR3 cranks longer than usual before firing up, the pump may not be building enough pressure. A healthy pump should quickly pressurize the fuel rail to the specified 65 psi.

  2. Loss of power during acceleration. When you step on the gas, the engine needs more fuel. A weak pump cannot keep up, causing noticeable hesitation, sputtering, or misfiring, especially when climbing hills or towing.

  3. Engine stalling. If the pump fails intermittently, the engine may cut out while driving. Restarting after a few minutes sometimes works because the pump cools down, but this is a dangerous condition that needs immediate attention.

  4. Whining or buzzing noise from the fuel tank. A healthy pump runs quietly. A loud, high-pitched whine coming from the rear of the vehicle usually means the pump motor bearings are wearing out. On the LR3, this noise is most noticeable at idle with the windows down.

  5. Poor fuel economy. If the pump is struggling, the engine may run rich or lean, both of which hurt your miles per gallon. Keep an eye on your average consumption as a diagnostic clue.

  6. Check Engine Light with fuel pressure codes. On gasoline LR3 models, codes like P0087 (fuel rail pressure too low) can point to pump failure. While P0149 is diesel-specific on the TDV6 models, any low-pressure code on your gas V6 or V8 deserves investigation.

Which Engine Does Your 2006 LR3 Have?

The 2006 Land Rover LR3 came with two gasoline engine options: the 4.0L V6 and the 4.4L V8. Both engines use the same in-tank fuel pump assembly, so you do not need to worry about ordering a different pump based on your engine choice. The fuel pump is located inside the fuel tank, accessible from under the vehicle after dropping the tank.

Original Part Numbers and What They Mean

When shopping for a replacement fuel pump for your 2006 LR3, you will encounter several part numbers. Here is what they mean:

  • WGS500051 – This is the main OEM part number for the complete fuel pump assembly used on 2005–2009 LR3 gasoline models and 2006–2009 Range Rover Sport with the 4.4L V8. It is also referenced as WGS500050, and some suppliers list WGS500020 as an interchanged number.

  • LR016845 – This is a newer Land Rover part number that supersedes the earlier references. It fits LR3 models with the 2010 model year fuel tank retrofit, as well as 2010–2016 LR4 and Range Rover Sport vehicles. If your 2006 LR3 has the original fuel tank with 3 vent pipes, you need WGS500051, not LR016845.

  • E8858M – This is an interchange number used by aftermarket suppliers for the same application. You will see it cross-referenced with both WGS500051 and the Delphi FG1637 pump.

  • FG1637 – This is the Delphi part number for the fuel pump module assembly.

Critical Fitment Note: Fuel Tank Vent Pipes

Before ordering any fuel pump, you must determine whether your 2006 LR3 has a fuel tank with 2 vent pipes or 3 vent pipes. This is the single most common source of ordering mistakes.

  • 3 vent pipes – This is the standard configuration for 2005–2009 LR3 models that have not had the fuel tank upgraded to the 2010 model year version. The WGS500051 and Delphi FG1637 pumps are designed for this tank.

  • 2 vent pipes – If your vehicle has had the fuel tank retrofitted to the 2010 specification, you need a different pump. The Delphi version for the 2-vent tank uses part number 18419-02582058 (FG1637).

How do you check? The fuel tank vent pipes are visible on top of the tank. If you are unsure, contact a Land Rover parts specialist and provide your 17-digit VIN. They can confirm the correct configuration before you spend money on the wrong part.

Replacement Cost Breakdown

The total cost to replace the fuel pump on a 2006 LR3 varies significantly based on your choice of parts and whether you hire a professional.

Parts only:

  1. Budget aftermarket pump – A bare replacement pump (not the full assembly) from brands like Autopart Premium costs as little as $67.95 with free shipping. This is just the pump motor; you reuse your existing housing and float.

  2. Mid-range aftermarket assembly – A complete fuel pump module with the sending unit, like the DriveMotive unit (part 18419-03353888), sells for around $100–$200. The DriveMotive version does not include the fuel sending unit and is priced accordingly.

  3. Premium aftermarket assembly – The Delphi FG1637 fuel pump and strainer set for the 3-vent tank sells for approximately $609.97 at PartsGeek, while other retailers list the same Delphi part at $778.14. This is the quality tier you want if you plan to keep the truck for several more years.

  4. Genuine OEM pump – Land Rover OEM parts are the most expensive option. Expect to pay $564.95 for the Atlantic British aftermarket version of WGS500051, and more for the factory boxed part. Used OEM pumps from salvage yards run 50–80% less than new ones, typically $100–$250, and come with a 6-month warranty.

Labor costs:

  • Professional installation – Most independent shops charge $300–$600 for labor on this job because it requires dropping the fuel tank. Dealership rates are higher, often pushing the total to $1,200 or more when using genuine parts.

  • DIY installation – If you are comfortable working under your vehicle, you can complete the swap in about 3–4 hours with basic hand tools. This brings your total out-of-pocket cost down to just the price of the part.

Step-by-Step Replacement Guide

Replacing the fuel pump on a 2006 Land Rover LR3 is a job you can do at home with patience and the right tools. Here is the general process. Keep in mind that the LR3 body may need to be lifted slightly from the chassis on some models to access the tank, and the fuel pump is accessed from the top of the tank after removal.

Before you begin, gather these items:

  • Replacement fuel pump assembly (correct for your vent pipe configuration)
  • New fuel tank gasket or seal (check if your pump includes one; many do not)
  • Socket set, ratchet, and extensions
  • Fuel line disconnect tools
  • A drain pan for residual fuel
  • Safety glasses and gloves

The process:

  1. Relieve fuel system pressure. Remove the fuel pump fuse and run the engine until it stalls, then crank it a few more times. Disconnect the negative battery cable.

  2. Raise and support the vehicle. Use jack stands rated for the LR3's weight. You need clear access underneath.

  3. Drain the fuel tank. The tank is heavy when full, and removing it with fuel inside is dangerous. Use a siphon pump to remove as much fuel as possible.

  4. Disconnect fuel lines and electrical connectors. Label each hose and connector before unplugging. The fuel lines on the LR3 use quick-connect fittings that require a special release tool.

  5. Lower and remove the fuel tank. Support the tank with a floor jack, remove the retaining straps, and carefully lower it. On the LR3, you may need to disconnect the filler neck hose to get the tank clear.

  6. Remove the fuel pump module. The pump is secured by a locking ring on top of the tank. Turn the ring counterclockwise with a hammer and punch or a specialized spanner wrench, then lift the pump assembly straight out. Note how the float arm is oriented before removal.

  7. Install the new pump. Transfer any components not included with your new pump, such as the fuel filter (if your model has an external one) or the sending unit. Insert the new pump assembly, align the float arm, and tighten the locking ring clockwise.

  8. Reinstall the tank and reconnect everything. Reverse the removal steps. Refill the tank with at least a few gallons of fuel, reconnect the battery, and turn the ignition to the "on" position (without cranking) several times to prime the system.

  9. Check for leaks and test drive. Start the engine, inspect for fuel leaks at all connections, and take the vehicle for a test drive to verify performance.

Maintenance Tips to Extend Pump Life

Preventing future fuel pump failure on your LR3 is easier than replacing it again. Follow these simple habits:

  1. Keep the tank at least one-quarter full. Running low on fuel regularly causes the pump to run hot because it relies on the surrounding fuel for cooling. Low fuel also allows debris and sediment at the bottom of the tank to be pulled into the pump.

  2. Change the fuel filter on schedule. A clogged filter starves the pump and forces it to work harder. Land Rover recommends replacement intervals of 30,000–50,000 miles depending on driving conditions.

  3. Use quality fuel from reputable stations. Contaminated fuel is a leading cause of premature pump failure. If you suspect you got a bad tank of gas, add a fuel system cleaner designed for gasoline engines.

  4. Address check engine lights promptly. Small problems like a faulty fuel pressure sensor can lead to bigger issues if ignored. A diagnostic scan costs little compared to another pump replacement.

Why Choose KEMSO for Your Fuel Pump Replacement

When you are ready to order a new fuel pump for your 2006 Land Rover LR3, KEMSO is a brand worth serious consideration. KEMSO specializes in high-performance, OEM replacement fuel pumps for a wide range of vehicles, including SUVs and trucks. Their pumps are engineered to match or exceed factory specifications, meaning you get the same fit, fuel flow, and reliability as the original part—without paying the dealership premium.

KEMSO fuel pumps are built with upgraded internal components for longer service life, and every unit is backed by a lifetime warranty. That warranty gives you peace of mind that no other aftermarket brand offers at this price point. Whether you are replacing a worn-out pump on your daily driver or upgrading before a long road trip, KEMSO delivers dependable performance you can count on.

Visit KEMSO online today at https://www.kemsoracing.com/ to browse their complete lineup of fuel pumps and find the exact match for your 2006 Land Rover LR3. With competitive pricing, fast shipping, and a lifetime warranty on every product, KEMSO is the smart choice for owners who want a quality replacement without overpaying. Order yours directly from their site and get your LR3 back on the road with confidence.

Final Thoughts

A failing fuel pump on your 2006 Land Rover LR3 is not something to ignore. The symptoms are clear, the replacement process is well documented, and the parts are readily available. Whether you choose a budget-friendly pump, a premium Delphi unit, or a genuine OEM assembly, the key is to confirm your tank's vent pipe configuration before purchasing. If you are not comfortable doing the work yourself, budget $600–$1,200 for professional installation including parts. And if you want a quality aftermarket pump with unbeatable warranty coverage, check out KEMSO at https://www.kemsoracing.com/—your LR3 will thank you.


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