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 Hose

PCV Valve Hose

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32 PCV Hoses found

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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB711
$41.96 MSRP: $60.82
You Save: $18.86 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PCV Valve Hose; PCV Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2011 Subaru Impreza | STI, STI Limited, STI Special Edition, STI Sport, WRX, WRX TR | 2.0L H4 Turbo, 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB143
$19.53 MSRP: $28.30
You Save: $8.77 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2011 Subaru Impreza | STI, STI Limited, STI Special Edition, STI Sport, WRX, WRX TR | 2.0L H4 Turbo, 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB213
$35.10 MSRP: $50.87
You Save: $15.77 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2003 Subaru Impreza | WRX | 2.0L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB641
$19.70 MSRP: $28.55
You Save: $8.85 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- Replaces: 11815AB640
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2011 Subaru Impreza | 2.5i, 25i, Outback, Outback Sport, RS | 2.5L H4
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB650
$19.70 MSRP: $28.55
You Save: $8.85 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2011 Subaru Impreza | 2.5i, 25i, Outback, Outback Sport, RS | 2.5L H4
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB152
$31.52 MSRP: $45.68
You Save: $14.16 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2005 Subaru Impreza | WRX | 2.0L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB960
$37.93 MSRP: $54.97
You Save: $17.04 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2007 Subaru Impreza | WRX, WRX TR | 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB560
$21.67 MSRP: $31.40
You Save: $9.73 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Accy-Pcv ; Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2007 Subaru Impreza | STI, STI Limited | 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AB400
$35.43 MSRP: $51.35
You Save: $15.92 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2005 Subaru Impreza | WRX | 2.0L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AC270
$46.64 MSRP: $67.60
You Save: $20.96 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- 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 Pcv Pipe
Part Number: 11852AA091
$32.79 MSRP: $47.52
You Save: $14.73 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pipe-Pcv
- Replaces: 11852AA090
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza Pcv Pipe
Part Number: 11852AA090
$32.79 MSRP: $47.52
You Save: $14.73 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pipe-Pcv
- Replaced by: 11852AA091
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2010 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AC260
$34.48 MSRP: $49.97
You Save: $15.49 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Pcv
- 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 PCV Hose Assembly
Part Number: 11815AC290
$29.28 MSRP: $42.43
You Save: $13.15 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2009 Subaru Impreza | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AC430
$17.15 MSRP: $24.85
You Save: $7.70 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2011 Subaru Impreza | STI, STI Special Edition, STI Sport | 2.5L H4 Turbo
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AC730
$17.18 MSRP: $24.90
You Save: $7.72 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Impreza | 4 Cyl 2.0L
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AD000
$17.15 MSRP: $24.85
You Save: $7.70 (31%)
ADD TO CART
Product Specifications
- Other Name: Hose Assy-Pcv
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Impreza | 4 Cyl 2.5L
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Subaru Impreza PCV Hose Assembly
Part Number: 11815AC87A
$13.95 MSRP: $20.22
You Save: $6.27 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Pcv
- 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 PCV Hose Assembly
Part Number: 11815AC610
$17.15 MSRP: $24.85
You Save: $7.70 (31%)
Product Specifications
- Other Name: Hose Assembly-Pcv; PCV Valve
- 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 PCV Hose Assembly
Part Number: 11815AA960
$41.40 MSRP: $60.00
You Save: $18.60 (31%)
Product Specifications
- Other Name: Hose Assembly-Pcv
- 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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1-20 of 32 Results

Subaru Impreza PCV Hose

The purpose of a PCV Hose on Subaru Impreza is to take the crankcase vapors and deliver them to the PCV valve, where the vapors get combusted in the engine. This helps lessen emissions and regulates fuel consumption. The pipe connects the crankcase port with the spring-loaded valve, allowing the valve's pintle to meter airflow. On the other hand, the PCV Hose merely channels the vapor stream. Thus, a cracked line will break the chain and allow unfiltered gases to escape. Throughout its history, the Impreza has undergone two major design changes with the appearance of two distinct placement styles for its PCV Hose, first on the driver side and second on the passenger side. Each style is shaped to fit its specific path yet performs the same job. Choosing the correct option for your Subaru is important because the wrong length or bend can put a strain on the valve and upset the air fuel balance. Drivers prefer the direct fit versions because a tight sealing PCV Hose installs quickly and prevents leaks that cause rough idling. By using basic tools, a jack or ramps, and careful clamping, you can securely replace a worn PCV Hose on any Subaru. Once secured, your vehicle should idle smoothly, offer stable economy, and reduce tailpipe pollutants. This keeps any Impreza ready for everyday trips.

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

PCV Hose Assembly
11815AB711
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

Genuine Subaru Impreza PCV Hose

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Subaru Impreza PCV Hose Assembly

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Subaru Impreza PCV Hose Parts Questions & Experts Answers

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