How to remove and inspect an oil pump assembly on Subaru Impreza?

The first step in taking out an engine is raising the front of the vehicle and using jackstands to secure it. The oil filter must be removed before draining the engine oil. Next remove timing belt, tensioner, crankshaft sprocket, upper timing belt idler pulley, idler pulley number 1 and idler sprocket number 2. On turbocharged models drain coolant, remove radiator and take off cooling pipes from oil cooler at front of engine. Also don't forget to remove the water pump and Crankshaft Position (CKP) sensor. Remove mounting bolts and oil pump while making sure a drain pan is placed beneath for spilt oil. For inspection purposes there are screws that hold down the pump cover; so remove them, apply alignment marks on inner/outer rotors and withdraw them from pump housing. Meanwhile clean up everything including: rotors, pump housing, relief valve and spring because they all might have been damaged at one point or another. If any parts show damage replace the oil pump assembly. Measure rotor tip clearance, outer rotor-to-oil pump housing clearance, rotor-to-cover clearance also if not within limit then replace with a new oil pump assembly but if ok reinstall cover on top of it tightening screws fastener.For installation purposes ensure that relief valve and rotors are lubricated with clean engine oil plus matchmarks which were made earlier are lined up together as well put back new crankshaft oil seal as well as an old O-ring between engine block which has a bearing housing too belonging to this particular type of fitting; but more specifically anaerobic sealant will be applied here so that it can be installed again on top even into its place (engine block). Fix remaining installation steps backwards by refilling fresh lubricants in motor plus brand new filters (oil only) besides refilling liquid cooled systems found those turbo models once more before starting said machine thus checking correct oil pressure as well as looking for any leaks of oil.

Genuine Subaru Impreza Oil Pump

Oil Fluid Pump

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36 Oil Pumps found

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Subaru Impreza Engine Oil Pump
Part Number: 15010AA360
$208.92 MSRP: $305.43
You Save: $96.51 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly Engine; Oil Pump
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | STI, STI Special Edition, STI Sport | 2.5L H4 Turbo
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Subaru Impreza Oil Pump Assembly Engine
Part Number: 15010AA300
$177.56 MSRP: $259.58
You Save: $82.02 (32%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Oil Pump Assembly-Engine; Oil Pump, Oil Pump Assembly
- Replaces: 15010AA106, 15010AA280, 15010AA105, 15010AA107, 15010AA104, 15010AA108, 15010AA103, 15010AA109
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2007 Subaru Impreza | 25i, Outback, Outback Sport, STI, STI Limited, WRX, WRX TR | 2.0L H4 Turbo, 2.5L H4, 2.5L H4 Turbo
- 1998 Subaru Impreza | RS | 2.5L H4 DOHC
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Subaru Impreza Pump Assembly Oil Eg
Part Number: 15010AA320
$178.13 MSRP: $260.42
You Save: $82.29 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly-Engine; Oil Pump
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, 2.5i, Outback Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza PT010200 Oil Pump Assembly
Part Number: 15010AA108
$177.56 MSRP: $259.58
You Save: $82.02 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA300
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2005 Subaru Impreza | STI, WRX | 2.0L H4 Turbo, 2.5L H4 Turbo
- 1998 Subaru Impreza | RS | 2.5L H4 DOHC
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Subaru Impreza Oil Pump Assembly Engine
Part Number: 15010AA280
$177.56 MSRP: $259.58
You Save: $82.02 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA300
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2006 Subaru Impreza | 25i, Outback, STI, WRX | 2.0L H4 Turbo, 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Oil Pump Assembly Engine
Part Number: 15010AA260
$172.66 MSRP: $252.43
You Save: $79.77 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA290
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2004 Subaru Impreza | Outback, RS, TS | 2.5L H4
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Subaru Impreza PT170298 Oil Pump Assembly
Part Number: 15010AA232
$172.66 MSRP: $252.43
You Save: $79.77 (32%)
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA234
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2001 Subaru Impreza | Brighton, L, Outback, RS, TS | 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4 SOHC
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Subaru Impreza Oil Pump Assembly
Part Number: 15010AA095
$172.66 MSRP: $252.43
You Save: $79.77 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA234
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1993-1997 Subaru Impreza | Base, Brighton, L, L+, LE, LS, LX, Outback | 1.8L H4, 2.2L H4, 2.2L H4 (New EVAPO)
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Subaru Impreza Oil Pump Assembly Engine
Part Number: 15010AA261
$172.66 MSRP: $252.43
You Save: $79.77 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA290
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005 Subaru Impreza | Outback, RS | 2.5L H4
View related parts
Subaru Impreza PT010200 Oil Pump Assembly
Part Number: 15010AA106
$177.56 MSRP: $259.58
You Save: $82.02 (32%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA300
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Impreza | RS | 2.5L H4 DOHC
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Subaru Impreza Rotor Oil Pump Out
Part Number: 15016AA330
$21.15 MSRP: $30.65
You Save: $9.50 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rotor-Oil Pump,Outer; Rotor
- Position: Outer
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | STI, STI Special Edition, STI Sport | 2.5L H4 Turbo
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Subaru Impreza Pump Assembly-Oil Tm
Part Number: 31340AA840
$363.50 MSRP: $536.13
You Save: $172.63 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Impreza | 4 Cyl 2.0L, 4 Cyl 2.5L
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Subaru Impreza Oil Pump Assembly Transmission
Part Number: 31340AA791
$318.21 MSRP: $469.33
You Save: $151.12 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Pump Assembly-Transmission
- Replaces: 31340AA790
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2016 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
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Subaru Impreza Elec Oil PMP AssemblyTM
Part Number: 30726AA020
$341.99 MSRP: $504.42
You Save: $162.43 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Elec Oil PMP ASSYTM
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Impreza | 4 Cyl 2.0L, 4 Cyl 2.5L
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Subaru Impreza PT010200 Oil Pump Assembly
Part Number: 15010AA107
$177.56 MSRP: $259.58
You Save: $82.02 (32%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA300
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Impreza | RS | 2.5L H4 DOHC
View related parts
Subaru Impreza Oil Pump Transmission
Part Number: 31340AA751
$349.09 MSRP: $514.88
You Save: $165.79 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Transmission
- Replaces: 31340AA750
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012-2014 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
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Subaru Impreza Pump Assembly Oil Tm
Part Number: 31340AA750
$349.09 MSRP: $514.88
You Save: $165.79 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Transmission
- Replaced by: 31340AA751
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012-2013 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
View related parts
Subaru Impreza Oil Pump Assembly Engine
Part Number: 15010AA262
$172.66 MSRP: $252.43
You Save: $79.77 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Pump Assembly-Engine
- Replaced by: 15010AA290
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005 Subaru Impreza | Outback, RS | 2.5L H4
View related parts
Subaru Impreza Rotor Oil Pump In
Part Number: 15015AA330
$19.53 MSRP: $28.30
You Save: $8.77 (31%)
Product Specifications
- Other Name: Rotor-Oil Pump,Inner; Rotor
- Position: Inner
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | STI, STI Special Edition, STI Sport | 2.5L H4 Turbo
View related parts
Subaru Impreza Rotor Oil Pump Out
Part Number: 15016AA320
$20.32 MSRP: $29.45
You Save: $9.13 (31%)
Product Specifications
- Other Name: Rotor-Oil Pump,Outer; Rotor
- Position: Outer
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, 2.5i, Outback Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo

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1-20 of 36 Results

Subaru Impreza Oil Pump

Subaru Impreza Oil Pump sends pressurized lubricant through the engine so bearings, pistons, camshaft, and other moving parts stay cool and friction free. This Oil Pump, unique to the flat four layout that Subaru favors, sits near the crankshaft and can use direct drive that surrounds the crank nose, gear drive that mounts alongside, or chain drive that turns with sprockets. All versions applied in Impreza share hardened gears, a spring loaded relief valve, and a pickup tube with mesh screen that draws oil from the sump before routing it through the filter and cooler. Early rally inspired Impreza models often relied on compact direct drive for sharp pressure response, while later high output Subaru trims sometimes adopted gear or chain drive to house larger volume gears for higher RPM needs. Each Oil Pump must hold roughly ten psi per thousand rpm, so builders verify gear clearances, housing wear, and free valve movement because small flaws can trigger the dash warning light. Clean oil, proper viscosity, and routine inspections keep every Oil Pump healthy, and racing engines with wider bearing gaps may use a higher volume Oil Pump to flood components under extreme load.

Our website stands as the go-to online destination for OEM Subaru Impreza Oil Pump. With complete lines of genuine Subaru Impreza Oil 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 Impreza Oil Pump Parts Questions & Experts Answers

Pump Assembly Oil Eg
15010AA320
Q:
How to remove and inspect an oil pump assembly on Subaru Impreza?
Posted by Charles D.
A:
The first step in taking out an engine is raising the front of the vehicle and using jackstands to secure it. The oil filter must be removed before draining the engine oil. Next remove Timing Belt, tensioner, crankshaft sprocket, upper timing belt idler pulley, idler pulley number 1 and idler sprocket number 2. On turbocharged models drain coolant, remove radiator and take off cooling pipes from oil cooler at front of engine. Also don't forget to remove the water pump and Crankshaft Position (CKP) sensor. Remove mounting bolts and oil pump while making sure a drain pan is placed beneath for spilt oil. For inspection purposes there are screws that hold down the pump cover; so remove them, apply alignment marks on inner/outer rotors and withdraw them from pump housing. Meanwhile clean up everything including: rotors, pump housing, relief valve and spring because they all might have been damaged at one point or another. If any parts show damage replace the oil pump assembly. Measure rotor tip clearance, outer rotor-to-oil pump housing clearance, rotor-to-cover clearance also if not within limit then replace with a new oil pump assembly but if ok reinstall cover on top of it tightening screws fastener.For installation purposes ensure that relief valve and rotors are lubricated with clean engine oil plus matchmarks which were made earlier are lined up together as well put back new crankshaft oil seal as well as an old O-ring between engine block which has a bearing housing too belonging to this particular type of fitting; but more specifically anaerobic sealant will be applied here so that it can be installed again on top even into its place (engine block). Fix remaining installation steps backwards by refilling fresh lubricants in motor plus brand new filters (oil only) besides refilling liquid cooled systems found those turbo models once more before starting said machine thus checking correct oil pressure as well as looking for any leaks of oil.
Answered by Subaru Parts Specialist Diego / May 23, 2026