2009 Nissan 370Z Fuel Pump: Symptoms, Cost, and Replacement Guide

The bottom line up front: If your 2009 Nissan 370Z is hard to start, sputters under acceleration, or makes a whining noise from the fuel tank, the fuel pump is likely failing. Replacing it early prevents being stranded unexpectedly. A genuine OEM fuel pump assembly costs between $465 and $591 for the part alone, and total replacement cost including labor typically runs $535 to $650 depending on your location and shop rates.

The 2009 Nissan 370Z uses a VQ37VHR 3.7L V6 engine, and the fuel pump sits inside the fuel tank. It is an electric, in-tank assembly that includes the pump, sending unit, and fuel level float. This is the same fuel pump used from 2009 through 2015, with part number 17040-1EA0B replacing the original 17040-1EA0A. Understanding the warning signs, replacement costs, and your options for parts will help you make the right call when your pump starts acting up.

Why the Fuel Pump Matters on Your 370Z

The fuel pump is the heart of your fuel delivery system. It draws fuel from the tank and pushes it through the fuel lines to the engine at the correct pressure. Without a properly working pump, your VQ37VHR engine will not get the fuel it needs to run correctly. A weak pump affects how the engine starts, idles, and accelerates under load.

Over time, the internal brushes and bearings in the electric motor wear out. Heat also takes a toll, especially if you frequently run the tank low. Fuel acts as a coolant for the pump, so running on empty regularly accelerates wear. On a 2009 model, the factory pump has now been in service for roughly 16 years, which puts it well past the typical expected lifespan of 100,000 to 150,000 miles.

6 Common Symptoms of a Failing Fuel Pump on a 2009 370Z

1. Whining or Sputtering Sounds from the Fuel Tank

A high-pitched whine coming from the rear of the car near the fuel tank is one of the earliest signs. A healthy pump operates quietly. When the motor bearings wear or the pump starts working harder to maintain pressure, it produces a noticeable whine. You may also hear a sputtering sound from the engine, especially at highway speeds.

2. Difficulty Starting the Engine

When the fuel pump cannot build adequate pressure, the engine cranks longer before firing. You may need multiple attempts to get the car started. If you let this go without fixing it, the car will eventually refuse to start altogether.

3. Engine Hesitation, Surging, or Power Loss

An erratic fuel supply causes the engine to hesitate, surge, or lose power, particularly when you accelerate or drive at higher speeds. Many owners describe this as feeling like the car is running out of gas even though the tank is full. A sputtering engine on the highway is a classic warning sign of fuel pump trouble.

4. Misfiring and Rough Idle

If the fuel pump delivers inconsistent pressure, the air-fuel ratio goes out of spec. This causes misfires and a rough idle. Over time, you will also notice reduced fuel economy because the engine is not burning fuel efficiently.

5. Overheating and Sudden Stalling

A worn fuel pump can overheat, especially with extended driving. The car may run fine for 15 to 30 minutes, then suddenly stall. After the pump cools down, the engine restarts, only for the cycle to repeat. This is both frustrating and dangerous, especially in traffic.

6. Low Fuel Pressure Readings

If you have access to a fuel pressure gauge, connect it to the service port on the fuel rail. Low readings at idle or under load point to the pump, its gasket sealer, or the pressure regulator failing. Always refer to your owner's manual for the correct specification for your 370Z.

Important note: Any of these symptoms may also trigger the Check Engine Light, especially if sound-related issues or misfires are present.

How Much Does a 2009 Nissan 370Z Fuel Pump Replacement Cost?

The total cost depends on where you buy the part and who does the labor. Here is a realistic breakdown:

OEM Fuel Pump Assembly (Part 17040-1EA0B):

  • MSRP is $820.87
  • Discounted online prices range from $464.89 to $591.02
  • The original version, 17040-1EA0A, fits the 2009 model year and was replaced by 17040-1EA0B

Aftermarket Fuel Pump Assemblies:

  • A-Premium aftermarket assemblies sell for around $205
  • Performance upgrades like DeatschWerks pumps range from $537 to $1,500 depending on flow rate and controller needs

Labor Costs:

  • Mobile mechanic services in the U.S. show total replacement costs (parts and labor) ranging from $524 to $653 for most 370Z models
  • One outlier quote reached $1,286 to $1,572 in Arizona
  • Average total replacement cost is approximately $742

Cost Comparison Table

Option Part Price Total with Labor
Genuine OEM Assembly (17040-1EA0B) $465-$591 $535-$653 typical
Aftermarket Assembly (e.g., A-Premium) $205 $400-$500 depending on shop
Performance Pump (DeatschWerks DW440) $538+ $800+ with installation

Where Can You Buy a Fuel Pump for a 2009 370Z?

Genuine Nissan OEM Parts

Buying genuine Nissan parts guarantees a perfect fit. The correct part number is 17040-1EA0B, which replaces 17040-1EA0A, 17040-1EK0A, and 17040-1EK0B. It fits all 2009-2015 370Z trims including Base, Sport, Nismo, Touring, and the 40th Anniversary Edition. These come with a 12-month Nissan factory warranty.

Aftermarket Options

A-Premium offers an assembly for $205 with a 3-year unlimited mileage warranty. This is a budget-friendly alternative with a sending unit included. Many owners find this acceptable for street-driven cars.

For modified or track-driven 370Zs, DeatschWerks offers a 440 liter-per-hour brushless pump with a C102 controller and installation kit. It fits 2009-2020 models but is not CARB-approved for California. It runs cooler, lasts longer, and supports higher fuel demands.

How to Replace the Fuel Pump on a 2009 370Z

The fuel pump is located inside the fuel tank. Access requires removing the rear service panel or dropping the tank, depending on the shop's preferred method. Here is a step-by-step overview of what is involved:

  1. Relieve Fuel System Pressure: Remove the fuel pump fuse and run the engine until it stalls. Disconnect the negative battery cable.
  2. Access the Pump: Remove the rear trunk trim or service cover to reach the top of the fuel tank.
  3. Remove the Old Pump: Disconnect the electrical connector and fuel lines. Remove the retaining ring and lift the assembly out carefully.
  4. Clean the Tank: Debris in the tank is the number one killer of new pumps. Clean the tank thoroughly before installing the new pump.
  5. Install the New Pump: Transfer the gasket and any mounting hardware. Lower the new assembly in gently, avoiding damage to the float arm.
  6. Reassemble and Test: Replace the retaining ring, reconnect the lines, and prime the system by turning the key to the ON position several times before starting.

Expect 2 to 3 hours of labor for a professional shop. Mobile mechanic services bring the job to your home or office.

Is It Safe to Keep Driving with a Bad Fuel Pump?

No. Driving with a failing fuel pump puts you at risk of stalling in traffic, losing power during overtaking, or being unable to restart the car. The pump can also draw contaminants through the system, which can damage the fuel injectors. If you notice the symptoms covered above, have the fuel pressure checked and replace the pump before the failure leaves you stranded.

Recommended: KEMSO Fuel Pump for Your 2009 370Z

When it comes time to replace your fuel pump, consider KEMSO. The KEMSO brand builds high-performance fuel pumps that deliver consistent fuel pressure under all driving conditions. Each KEMSO fuel pump is designed as an OEM replacement, meaning it matches the factory specifications for fit, flow rate, and electrical connections. You do not have to rewire or modify anything on your 370Z to make it work.

KEMSO stands behind their product with a lifetime warranty. That means if the pump fails for any reason related to workmanship or materials for as long as you own the vehicle, they will replace it. That level of confidence tells you they expect the part to last.

The practical benefits of a KEMSO fuel pump are straightforward:

  1. Consistent fuel delivery: No more sputtering or hesitation under heavy acceleration.
  2. Drop-in fit: No modifications, no special tools beyond standard wrenches.
  3. Long-term savings: The lifetime warranty eliminates the financial risk of an early failure.

Visit the KEMSO website at https://www.kemsoracing.com/ to check availability and pricing for your 2009 Nissan 370Z. Their product lineup covers a wide range of vehicles, and their customer reviews reflect satisfied buyers across the board.

Final Verdict

Your 2009 Nissan 370Z fuel pump is overdue for attention if you are seeing any of the six symptoms listed above. Start with a fuel pressure test to confirm the diagnosis. If the pump is indeed failing, replace it promptly. Choose a genuine OEM assembly for guaranteed fit, an aftermarket unit for budget savings, or a performance pump if you have engine modifications. And if you want a balance of performance, reliability, and warranty protection, a KEMSO fuel pump is worth your serious consideration.

For more information and to see the full KEMSO product range, visit https://www.kemsoracing.com/ today.


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