How to Replace the PCV Hose and PCV Valve on a Subaru Impreza?

The PCV system reduces emissions by circulating fresh air from the air filter into the crankcase, mixing with blow-by gases, and then traveling into the intake manifold. While idle and throttle, the manifold vacuum is high, allowing gases and vapors to flow from the crankcase into the intake manifold via the PCV valve and hose.

Genuine Subaru Impreza PCV Valve

Position Crank Ventilation Valve

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9 PCV Valves found

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Subaru Impreza Engine Valve Complete Control
Part Number: 11810AA131
$27.95 MSRP: $40.49
You Save: $12.54 (31%)
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Product Specifications
- Other Name: Valve Complete Control; PCV Valve
- Replaces: 11810AA130
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012-2016 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
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Subaru Impreza Valve Complete Control
Part Number: 11810AA130
$27.95 MSRP: $40.49
You Save: $12.54 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Complete-Control
- Replaced by: 11810AA131
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012-2015 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
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Subaru Impreza Valve Complete Control
Part Number: 11810AA100
$29.41 MSRP: $42.62
You Save: $13.21 (31%)
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Product Specifications
- Other Name: Valve Complete-Control; PCV Valve
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5i, Outback Sport | 2.5L H4
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Subaru Impreza Valve Complete Control
Part Number: 11810AA040
$16.84 MSRP: $24.40
You Save: $7.56 (31%)
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Product Specifications
- Other Name: PCV Valve
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2011 Subaru Impreza | 2.5 GT, 25i, Outback, Outback Sport, RS, STI, STI Special Edition, STI Sport, TS, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Valve COMPL-Cont
Part Number: 11810AA200
$11.60 MSRP: $16.12
You Save: $4.52 (29%)
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Product Specifications
- Replaces: 11810AA180
- 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 Air Control Valve
Part Number: 11810AA000
$11.95 MSRP: $16.60
You Save: $4.65 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Complete-Control; PCV Valve
- Replaces: 460257000
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2003 Subaru Impreza | WRX | 2.0L H4 Turbo
- 1993-1998 Subaru Impreza | Base, Brighton, L, L+, LE, LS, LX, Outback, RS | 1.8L H4, 2.2L H4, 2.2L H4 (New EVAPO), 2.5L H4 DOHC
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Subaru Impreza Valve Complete-Cont
Part Number: 11810AA190
$8.29 MSRP: $11.53
You Save: $3.24 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: 11810AA150
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2021 Subaru Impreza | Base, Limited, Premium, Sport
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Subaru Impreza Valve Complete Control
Part Number: 11810AA120
$14.51 MSRP: $21.03
You Save: $6.52 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Complete-Control; PCV Valve
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009-2011 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza Valve Complete-Cont
Part Number: 11810AA150
$8.29 MSRP: $11.53
You Save: $3.24 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Complete-Control
- Replaced by: 11810AA190
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2018 Subaru Impreza | Base, Limited, Premium, Sport

Subaru Impreza PCV Valve

The Subaru Impreza PCV Valve is a vital part that draws vapor from the crankcase back into the cylinders, reducing pollution while protecting the engine. Subaru engines rely on intake manifold vacuum to keep the PCV Valve almost closed at idle to stabilize the air-fuel mixture. The valve opens wide under throttle when blow-by gases rise, allowing the engine to breathe cleanly and keep power sharp. An ingenious function of the PCV Valve is to act as a flame stopper, which blocks any pressure increases from turbo boost or backfire that might force flames into the crankcase. The early versions of the Impreza shared the same PCV Valve spring-loaded check design employed across the board on many different models. In later turbo trims, the same layout was maintained, but an oil-separating chamber to catch droplets was added to avoid sludge. Regardless of the year, keeping the PCV Valve clear of deposits helps ensure that the Subaru boxer motor does not leak oil, maintain compression, or emit too many harmful fumes, allowing any loyal Impreza to live longer.

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

Valve Complete Control
11810AA120
Q:
How to Replace the PCV Hose and PCV Valve on a Subaru Impreza?
Posted by Blake Z.
A:
The PCV system reduces emissions by circulating fresh air from the air filter into the crankcase, mixing with blow-by gases, and then traveling into the intake manifold. While idle and throttle, the manifold vacuum is high, allowing gases and vapors to flow from the crankcase into the intake manifold via the PCV valve and hose.
Answered by Subaru Parts Specialist Anthony / May 22, 2025