How to Replace the Fuel Pump, Fuel Level Sending Unit, and Fuel Filter on Subaru Legacy?

Unplug the battery and alleviate fuel system pressure. Remove the fuel pump/level sensor from the tank. Separate the pump and holder from the assembly, disconnect the pump's electrical connector, remove the pump and disconnect the inlet strainer tube. To replace the level sensor, release the locking pawls with a screwdriver, disconnect the ground wire and electrical connectors, and remove the sensor. To replace the filter, pry the tabs away and remove the filter. Reverse the process for installation.

How to Remove and Install a Fuel Pump/Fuel Level Sending Unit on Subaru Legacy?

Depressurize the fuel system and disconnect the battery. Remove the rear seat, floor mat, and access plate. Disconnect the fuel pump connector and both fuel hoses. Remove the jet pump hose and fuel pump assembly. Replace old pump gaskets, clean the pump inlet, and install with a new gasket. Reassemble in reverse order and check for leaks after running the engine.

How to check Fuel Pump and fuel pressure on Subaru Legacy?

To inspect the fuel system, remove the fuel cap and turn the ignition key to ON. If no sound is heard, check the fuel pump fuse and trace the circuit for a short. Remove the relay of the fuel pump and look for the battery voltage. Unplug the fuel pump connector at the tank and look for voltage with the ignition turned on. Relieve fuel pressure, disconnect the negative battery cable, and insert the fuel pressure gauge between the fuel hose and filter inlet pipe. Start the engine and compare pressure readings with the Specifications. If incorrect, check for vacuum at the fuel pressure regulator, a fuel filter or line restriction, or a blocked fuel return hose. After testing, relieve pressure, take out the gauge and connect the fuel line.

Genuine Subaru Legacy Fuel Pump

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72 Fuel Pumps found

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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AG11A
$362.61 MSRP: $517.42
You Save: $154.81 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump
- Replaced by: 42021AG11B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2009 Subaru Legacy | 2.5i, 2.5i Base, 2.5i Limited, Base | 2.5L H4
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AG04A
$362.59 MSRP: $517.40
You Save: $154.81 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump
- Replaced by: 42021AG04B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Legacy | GT, GT Limited, XT Limited | 2.5L H4 Turbo
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021XA00A
$314.12 MSRP: $443.67
You Save: $129.55 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump
- Replaced by: 42021XA00B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2009 Subaru Legacy | 3.0R, 3.0R Limited, 3.0R LL-Bean | 3.0L H6
View related parts
Subaru Legacy Fuel Pump
Part Number: 42022AG04A
$362.59 MSRP: $517.40
You Save: $154.81 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump With Filter ; Pump-Fuel
- Replaced by: 42021AG04B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Legacy | 3.0R, 3.0R Limited, 3.0R LL-Bean, GT, GT Limited, XT Limited | 2.5L H4 Turbo, 3.0L H6
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AE03A
$374.05 MSRP: $533.75
You Save: $159.70 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assy Fuel H6 ; Pump Assembly-Fuel
- Replaced by: 42021AE03B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2001-2003 Subaru Legacy | Flat6, Flat6 L.L.Bean, SUS Flat6 | 3.0L H6
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AL02C
$583.96 MSRP: $833.28
You Save: $249.32 (30%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly Fuel
- Replaces: 42021AL02B, 42021AL02A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AL02A
$583.96 MSRP: $833.28
You Save: $249.32 (30%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump
- Replaced by: 42021AL02C
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2017 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4
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Subaru Legacy Gas Fuel Tank Pump
Part Number: 42021AJ240
$420.88 MSRP: $600.57
You Save: $179.69 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump, Fuel Pump Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2014 Subaru Legacy | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
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Subaru Legacy Fuel Pump Sending Unit
Part Number: 42021AA030
$322.75 MSRP: $455.87
You Save: $133.12 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly-Fuel
- Replaced by: 42021AC013
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1990-1991 Subaru Legacy | L, LS, LS-D
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Subaru Legacy Fuel Pump Assembly
Part Number: 42021AG05A
$362.62 MSRP: $517.43
You Save: $154.81 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump
- Replaced by: 42021AG05B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2007 Subaru Legacy | 3.0R, 3.0R Limited, 3.0R LL-Bean | 3.0L H6
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Subaru Legacy Fuel Gas Pump Assembly
Part Number: 42021AJ091
$379.61 MSRP: $541.68
You Save: $162.07 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump, Fuel Pump Assembly
- Replaces: 42021AJ090
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2011 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium | 2.5L H4 SOHC
View related parts
Subaru Legacy Fuel Pump Assembly
Part Number: 42021AL03C
$583.96 MSRP: $833.28
You Save: $249.32 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly Fuel
- Replaces: 42021AL03A, 42021AL03B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Legacy | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
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Subaru Legacy Fuel Pump
Part Number: 42022AJ100
$268.66 MSRP: $379.47
You Save: $110.81 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump With Filter ; Pump-Fuel
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2014 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DOHC, 2.5L H4 SOHC
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Subaru Legacy Pump With Filter
Part Number: 42022AL00B
$56.16 MSRP: $78.00
You Save: $21.84 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump With Filter 120
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2019 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4
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Subaru Legacy Fuel Pump Module
Part Number: 42021AJ230
$420.88 MSRP: $600.57
You Save: $179.69 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Fuel; Fuel Pump, Fuel Pump Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2014 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DOHC
View related parts
Subaru Legacy Fuel Pump
Part Number: 42022AG23A
$252.82 MSRP: $357.08
You Save: $104.26 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump-Fuel
- Replaced by: 42022AG23B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Legacy | 2.5i, 2.5i Base, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, Base | 2.5L H4, 3.0L H6
View related parts
Subaru Legacy Pump With Filter
Part Number: 42022AN00A
$82.99 MSRP: $115.27
You Save: $32.28 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2021 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DI
View related parts
Subaru Legacy Fuel Pump
Part Number: 42022YC010
$259.60 MSRP: $366.67
You Save: $107.07 (30%)
Product Specifications
- Other Name: Pump With Filter ; Pump-Fuel
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2014 Subaru Legacy | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
View related parts
Subaru Legacy Fuel Pump Module Assembly
Part Number: 42021AE02A
Product Specifications
- Other Name: Pump Assembly-Fuel
- Replaced by: 42021AE02B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2000-2003 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, Limited, SUS Limited | 2.5L H4
View related parts
Subaru Legacy Fuel Pump
Part Number: 42022AL00A
$260.19 MSRP: $367.50
You Save: $107.31 (30%)
Product Specifications
- Other Name: Pump With Filter 120 ; Pump-Fuel; Control Module
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2018 Subaru Legacy | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4

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Subaru Legacy Fuel Pump

Subsequently, the Subaru Legacy Fuel Pump is an important device that handles the redeeming of fuel from the tank to the carburetor or the fuel injecting device. Indicative electric pumps are usually employed on the fuel injection systems and are usually fixed on the interior sides of fuel tanks. Carbureted engines have Mechanical pumps; the pumps are operated by the camshaft and has float value for creating and maintaining pressure. Carbureted engines use mechanical pumps because they are efficient; however, fuel injected, high-pressure engines use electric pumps since they have special benefits such as cooling and extra safety measures. Articles of the use of high pressure fuel pumps in direct injection engine guarantee excellent performance of the engine and low emissions.

Our website stands as the go-to online destination for OEM Subaru Legacy Fuel Pump. With complete lines of genuine Subaru Legacy Fuel Pump available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Legacy Fuel Pump Parts Questions & Experts Answers

Fuel Pump Module Assembly
42021AE02A
Q: How to Replace the Fuel Pump, Fuel Level Sending Unit, and Fuel Filter on Subaru Legacy?
A: Unplug the battery and alleviate fuel system pressure. Remove the fuel pump/level sensor from the tank. Separate the pump and holder from the assembly, disconnect the pump's electrical connector, remove the pump and disconnect the inlet strainer tube. To replace the level sensor, release the locking pawls with a screwdriver, disconnect the ground wire and electrical connectors, and remove the sensor. To replace the filter, pry the tabs away and remove the filter. Reverse the process for installation.
Fuel Pump Assembly
42021AE03A
Q: How to Remove and Install a Fuel Pump/Fuel Level Sending Unit on Subaru Legacy?
A: Depressurize the fuel system and disconnect the battery. Remove the rear seat, floor mat, and access plate. Disconnect the fuel pump connector and both fuel hoses. Remove the jet pump hose and fuel pump assembly. Replace old pump gaskets, clean the pump inlet, and install with a new gasket. Reassemble in reverse order and check for leaks after running the engine.
Fuel Pump
42022AG15A
Q: How to check Fuel Pump and fuel pressure on Subaru Legacy?
A: To inspect the fuel system, remove the fuel cap and turn the ignition key to ON. If no sound is heard, check the fuel pump fuse and trace the circuit for a short. Remove the relay of the fuel pump and look for the battery voltage. Unplug the fuel pump connector at the tank and look for voltage with the ignition turned on. Relieve fuel pressure, disconnect the negative battery cable, and insert the fuel pressure gauge between the fuel hose and filter inlet pipe. Start the engine and compare pressure readings with the Specifications. If incorrect, check for vacuum at the fuel pressure regulator, a Fuel Filter or line restriction, or a blocked fuel return hose. After testing, relieve pressure, take out the gauge and connect the fuel line.