A Guide to the Electric Fuel Pump for the 2006-2014 Subaru Outback
Keep your Outback's engine running smoothly by understanding its fuel pump.
- Symptoms of a failing fuel pump include engine hesitation, trouble starting, and a whining noise from the gas tank area.
- No fuel pump recalls affect the 2006-2014 Outback; a major recall for this part only applies to 2019 models.
- For a quality replacement, Hitachi is an OEM-equivalent brand, while GMB and US Motor Works are reliable aftermarket options.
- Replacement is a manageable DIY job for many owners, as the pump is accessible under the rear seat.
Is Your Outback's Fuel Pump Failing?
A fuel pump can often fail slowly, giving you warning signs before it stops working completely. If you notice any of these issues with your 2006-2014 Outback, your fuel pump might be the problem. Paying attention to these symptoms can help you fix the issue before you get stranded.
- Engine Sputtering or Hesitation: You might feel the engine sputter or lose power when you're driving at high speeds or accelerating. This happens because the weak pump can't keep up with the engine's demand for fuel.
- Loss of Power Under Load: The car may struggle when going up hills or carrying heavy weight. This is a classic sign that the pump isn't delivering enough fuel for the extra work.
- Trouble Starting: Your Outback might take longer than usual to start, or you may have to turn the key several times. This can happen when the pump isn't strong enough to send fuel to the engine for ignition.
- Whining Noise from the Fuel Tank: A loud humming or whining sound from the rear of the car is a common early warning sign. The noise is the pump's motor straining to work.
- Engine Stalling: In more serious cases, the engine may stall unexpectedly while driving. This is a critical symptom, as the pump is failing to provide a consistent fuel supply.
Check Engine Light and Codes
A failing fuel pump can trigger the Check Engine Light. A common trouble code associated with this issue is P0087 - Fuel Rail/System Pressure - Too Low. This code means the car's computer has detected that the fuel pressure is below the required level. While a bad fuel pump is a likely cause, this code can also be triggered by a clogged fuel filter or a faulty fuel pressure sensor.
Choosing the Right Aftermarket Fuel Pump
When replacing the fuel pump on your Outback, you don't have to buy the expensive OEM part from the dealer. Aftermarket brands offer a range of options that can save you money. They generally fall into three quality tiers.
OEM-Equivalent Brands (Best)
These brands are often the original equipment manufacturers for Subaru and other Japanese automakers. They provide the best quality and fit, just like the original part.
- Hitachi: Hitachi is a well-known OEM supplier that manufactures high-quality parts for many Japanese vehicles. Choosing a Hitachi fuel pump means you are getting a part built to the original factory specifications for performance and quiet operation.
Quality Aftermarket Brands (Better)
These brands build parts that meet or exceed OEM standards and are a reliable choice for most owners. They offer a great balance of quality and price.
- GMB: GMB is another known OEM supplier for Japanese car manufacturers and has a reputation for quality. Their pumps are designed to be durable and are considered a solid, cost-effective replacement.
- US Motor Works: This brand focuses on producing quality aftermarket parts with durable components, such as improved wiring and corrosion-resistant materials. They aim to provide performance that meets or exceeds original standards.
Economy Brands (Good)
For those on a tight budget, economy brands get the job done. While they may not have the same long-term durability as premium brands, they are a functional and affordable option.
- AutoBest: AutoBest pumps are a budget-friendly choice that many users find easy to install. While they offer good value, some reviews and forum discussions suggest that reliability can be mixed compared to higher-priced brands.
Cost of Replacing Your Outback's Fuel Pump
The total cost depends on whether you do the job yourself or take it to a shop. The part price also varies significantly by brand.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $350 - $550 |
| New Aftermarket | $56 - $278 |
| Shop Labor | $200 - $350 |
Cost estimates are based on national averages and may vary.
Pro Tip: Clean the Tank
The number one cause of premature failure for a new fuel pump is contamination from the fuel tank. When you replace your pump, it's a perfect time to clean any dirt or debris from the bottom of the tank. This will help your new pump last much longer.
Frequently Asked Questions
Was there a fuel pump recall for the 2006-2014 Outback?
No. While Subaru did issue a major recall (WRD-20) for faulty fuel pumps, it only affected 2019 models. There are no active recalls or specific Technical Service Bulletins (TSBs) for fuel pump failures on the 2006-2014 Subaru Outback.
Can I replace the fuel pump myself?
Yes, this is a DIY-feasible job for someone with basic mechanic skills. The fuel pump is accessed through a panel under the rear seat cushion, so you do not need to drop the entire fuel tank. The job requires disconnecting the battery, carefully removing fuel lines, and swapping the pump assembly. The estimated time is about 1.5 to 2.5 hours.
What's the difference between a fuel pump and a fuel pump assembly?
The fuel pump is the electric motor itself. The fuel pump assembly is the complete unit that drops into the tank, which includes the pump, the fuel level sending unit (float), the strainer, and the housing. For this generation of Outback, it is highly recommended to replace the entire assembly to ensure all components are new and reliable.
How can I make my new fuel pump last longer?
The best way to protect your fuel pump is to avoid running your gas tank near empty. The gasoline in the tank helps cool and lubricate the pump's electric motor. Constantly running on low fuel can cause the pump to overheat and fail prematurely. Also, using high-quality fuel can help keep the system clean.
Helpful Videos
Technical Specifications
OEM Part Numbers: 42021AG11B 42021AG12B 42021AJ091 42021AJ061 42021AJ150
The electric fuel pump is a module assembly located inside the fuel tank. It includes the pump motor, fuel level sending unit, and strainer. Access is through a panel located under the rear passenger seat.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Subaru Outback:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Outback's Fuel Pump Failing?
- Check Engine Light and Codes
- Choosing the Right Aftermarket Fuel Pump
- OEM-Equivalent Brands (Best)
- Quality Aftermarket Brands (Better)
- Economy Brands (Good)
- Cost of Replacing Your Outback's Fuel Pump
- Pro Tip: Clean the Tank
- Frequently Asked Questions
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