Genuine Subaru WRX Coolant Reservoir Hose

Water Bypass Hose

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13 Coolant Reservoir Hoses found

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Subaru WRX Radiator Hose Outlet
Part Number: 45161AG010
$18.63 MSRP: $27.00
You Save: $8.37 (31%)
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Product Specifications
- Other Name: Hose-Radiator Outlet; Lower Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX Hose Over Flow
Part Number: 45162AG021
$5.96 MSRP: $8.28
You Save: $2.32 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose-Reserve Tank; Overflow Hose, Reservoir Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium | 2.0L H4
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Subaru WRX Radiator Inlet Hose
Part Number: 45161AG070
$25.30 MSRP: $36.67
You Save: $11.37 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose-Radiator Inlet
- Replaced by: 45161AG000
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX Hose Q
Part Number: 45162FG010
$14.19 MSRP: $20.57
You Save: $6.38 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reservoir Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2018 Subaru WRX | Base, Limited, Premium | 2.5L H4 Turbo
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Subaru WRX Radiator Inlet Hose
Part Number: 45161SG000
$26.74 MSRP: $38.75
You Save: $12.01 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose-Radiator Inlet; Upper Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium | 2.0L H4
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Subaru WRX Radiator Hose Outlet
Part Number: 45161SG010
$25.36 MSRP: $36.75
You Save: $11.39 (31%)
ADD TO CART
Product Specifications
- Other Name: Hose-Radiator Outlet; Lower Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium | 2.0L H4
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Subaru WRX Hose Over Flow
Part Number: 45162AG041
$5.96 MSRP: $8.28
You Save: $2.32 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose; Overflow Hose, Reservoir Hose
- Replaces: 45162AG040
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX Hose Over Flow
Part Number: 45162AG031
$8.52 MSRP: $11.83
You Save: $3.31 (28%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Hose-Reserve Tank; Overflow Hose, Reservoir Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX Hose Over Flow
Part Number: 45162VA000
$9.56 MSRP: $13.28
You Save: $3.72 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose-Over Flow Radiator; Reservoir Hose
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX HOSE RAD IN
Part Number: 45161VC020
$22.43 MSRP: $32.50
You Save: $10.07 (31%)
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:
- 2022-2025 Subaru WRX | 4 Cyl 2.4L 6MT, 4 Cyl 2.4L CVT
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Subaru WRX HOSE OVER FLOW
Part Number: 45162VC000
$9.56 MSRP: $13.28
You Save: $3.72 (29%)
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:
- 2022-2025 Subaru WRX | 4 Cyl 2.4L 6MT, 4 Cyl 2.4L CVT
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Subaru WRX Hose Over Flow In
Part Number: 45162VA010
$14.19 MSRP: $20.57
You Save: $6.38 (32%)
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:
- 2018-2020 Subaru WRX | Base, Limited, Premium, S209, Type RA | 2.5L H4 Turbo
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Subaru WRX HOSE RAD OUT
Part Number: 45161VC030
$24.48 MSRP: $35.48
You Save: $11.00 (31%)
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:
- 2022-2025 Subaru WRX | 4 Cyl 2.4L 6MT, 4 Cyl 2.4L CVT

Subaru WRX Coolant Reservoir Hose

Subaru WRX Coolant Reservoir Hose helps in transferring the coolant fluid away from the engine quickly to avoid overflow and control temperature during driving. Designed according to original equipment specifications, this Coolant Reservoir Hose is able to withstand constant pressure swings, sealing the cooling loop so no air can get in. The Coolant Reservoir Hose returns surplus fluid to the overflow bottle during high boost runs and draws it back when the engine cools. This keeps the level right and helps prevent corrosion. Subaru owners gain complete confidence when they are pushing their WRX on track or on a winding back road thanks to its proven history of long life. Whether from a rally car or the recent year, every chassis from first gen sedans to the recent models accepts a direct fit Coolant Reservoir Hose, making installation a simple affair. In older cars, the molded rubber Coolant Reservoir Hose has factory bends, while newer versions use heat resistant silicone that flexes around turbo piping, giving drivers the option to choose their fit while not sacrificing reliability. The tightened clamp and solid-wall design of the Coolant Reservoir Hose means once it is installed, it does not need much attention so Subaru fans can shift their focus on throttle response instead of gauges. The WRX is naturally firm. Pair that durability with EyeSight driver tech on modern WRX trims, and you have got a package that balances speed with daily safety. One Coolant Reservoir Hose can up the entire Subaru cooling plan. Due to shared engine architecture within the performance lineage of Subaru, the Coolant Reservoir Hose can be fitted to STI, and S Series WRX variants to cut down on downtime and ensure consistent results on a track day. Drivers claim that the new WRX gains extra headroom for boost pressure when the coolant remains stable and that stability flows directly from this humble hose. Select the Subaru component once and your WRX keeps delivering cool, dependable power for as long as you drive it.

Our website stands as the go-to online destination for OEM Subaru WRX Coolant Reservoir Hose. With complete lines of genuine Subaru WRX Coolant Reservoir 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.

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