How to Remove and Replace a Radiator and Coolant Reservoir on a Subaru Forester?

Set the parking brake, raise the vehicle, and support it on jackstands. Remove the splash shield, drain the cooling system, and remove the air intake duct and coolant reservoir. Remove the heat-shield and lower radiator cover on turbo models. Disconnect the radiator hoses, fluid cooler lines, and fan electrical connectors. Remove the radiator mounting brackets and any attached clips or hoses. Lift out the radiator and cooling fans, inspect for leaks and damage. Remove the coolant reservoir and top engine cover. Fill the cooling system with coolant, start the engine, and check for leaks. Recheck coolant level and add transaxle fluid as needed. Tighten the radiator bracket bolts, guide the radiator into the mounts, and fill the cooling system. Check the radiator mounts for deterioration and clean the radiator. Flush the radiator before reinstallation, and reinstall in reverse order. Fill the cooling system with coolant.

Genuine Subaru Forester Coolant Reservoir

Coolant Tank Reservoir

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15 Coolant Reservoirs found

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Subaru Forester Tank Assembly Water
Part Number: 21132AA131
$117.20 MSRP: $169.85
You Save: $52.65 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tank Assembly-Water; Reservoir Tank, Tank Assembly
- Replaces: 21132AA075, 21132AA130, 21132AA074
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2008 Subaru Forester | Forester Sports, XT | 2.5L H4 Turbo
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Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150AG011
$48.56 MSRP: $70.38
You Save: $21.82 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Expansion Tank, Reservoir, Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009-2013 Subaru Forester | XT, XT Limited | 2.5L H4 DOHC Turbo
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Subaru Forester Tank Assembly Water
Part Number: 21132AA121
$80.67 MSRP: $116.92
You Save: $36.25 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank Assembly-Water; Tank
- Replaces: 21132AA120
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009-2013 Subaru Forester | XT, XT Limited | 2.5L H4 DOHC Turbo
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Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150AG001
$44.17 MSRP: $64.02
You Save: $19.85 (32%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Expansion Tank, Reservoir, Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009-2013 Subaru Forester | X, X Limited, X Premium, XS | 2.5L H4 DOHC, 2.5L H4 SOHC
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Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150SA000
$57.37 MSRP: $83.15
You Save: $25.78 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2008 Subaru Forester | Forester Sports, L.L.Bean, X, XS | 2.5L H4
View related parts
Subaru Forester Tank Assembly Water
Part Number: 21132AA075
$117.20 MSRP: $169.85
You Save: $52.65 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank Assembly-Water
- Replaced by: 21132AA131
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Forester | XT | 2.5L H4 Turbo
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Subaru Forester Tank Reserve
Part Number: 45150SG001
$44.70 MSRP: $64.78
You Save: $20.08 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir, Reservoir Assembly
- Replaces: 45150SG000
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2014-2018 Subaru Forester | 2.0XT Premium, 2.0XT Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring | 2.0L H4, 2.5L H4
View related parts
Subaru Forester Tank Assembly Water
Part Number: 21132AA120
$80.67 MSRP: $116.92
You Save: $36.25 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank Assembly-Water
- Replaced by: 21132AA121
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009 Subaru Forester | XT, XT Limited | 2.5L H4 DOHC Turbo
View related parts
Subaru Forester Reserve Tank Assembly
Part Number: 45151FA050
$52.15 MSRP: $75.58
You Save: $23.43 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2002 Subaru Forester | Base, L, S | 2.5L H4 SOHC
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Subaru Forester Tank Reserve
Part Number: 45150SJ000
$44.70 MSRP: $64.78
You Save: $20.08 (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:
- 2019-2021 Subaru Forester | Base, Limited, Premium, Sport, Touring
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Subaru Forester TANK RESERVE ASSY
Part Number: 45150SL000
$46.93 MSRP: $68.02
You Save: $21.09 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2025 Subaru Forester | 4 Cyl 2.5L, 4 Cyl 2.5L Hybrid
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Subaru Forester Reserve Tank Assembly-RADIATO
Part Number: 45150SG000
$44.70 MSRP: $64.78
You Save: $20.08 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator
- Replaced by: 45150SG001
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2014 Subaru Forester | 2.0XT Premium, 2.0XT Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring | 2.0L H4, 2.5L H4
View related parts
Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150SA010
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Forester | XT | 2.5L H4 Turbo
View related parts
Subaru Forester Reserve Tank Assembly
Part Number: 45151FC000
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Forester | Base, L, S | 2.5L H4 DOHC, 2.5L H4 DOHC (New EVAPO)
View related parts
Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150SA020
Product Specifications
- Other Name: Reserve Tank Assembly-Radiator; Reservoir Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2008 Subaru Forester | Forester Sports, XT | 2.5L H4 Turbo

Subaru Forester Coolant Reservoir

Subaru Forester Coolant Reservoir: the car part constitutes one of the most significant vehicle systems, the engine cooling, and is widely known for its durability and efficacy across Subaru Forester car models. This Coolant Reservoir controls reserve coolant fluid and keeps the air out of the system that could cause rust or leaks. Subaru Foresters utilize two primary types of Coolant Reservoirs: an overflow and expansion tank, which is also a tank designed to guarantee that expansion and contraction of the coolant takes place as it happens normally for it to improve its functionality. As for the overflow system, there is a pressure cap in the radiator leading to a simple plastic tank, while for the expansion tank, there is a reinforced plastic tank with a pressure cap to enhance its longevity. It has been highlighted that the Coolant Reservoir requires inspection frequently since any crack or leakage in the container endangers the cooling system of the engine. Subaru Forester, with the description of a compact crossover SUV, has all it takes within an automobile market place; strong engine power, relatively cheap, and packed with all driver assistances. As one of the detailed parts of Subaru Forester, the Coolant Reservoir is part of the engine system and has a key component in the mechanism of the vehicle. The fact that it works with Forester models that have been produced makes it possible for clients to count on this crucial item so as to get a safe and efficient means of running. All in all, the Coolant Reservoir of Subaru Forester is an iconic proof of the company's adherence to the principles of quality and innovation in the narrow segment of SUV vehicles. The Coolant Reservoir remains essential for maintaining optimal engine performance.

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

Reserve Tank Assembly
45151FA050
Q: How to Remove and Replace a Radiator and Coolant Reservoir on a Subaru Forester?
A:
Set the parking brake, raise the vehicle, and support it on jackstands. Remove the splash shield, drain the cooling system, and remove the air intake duct and coolant reservoir. Remove the heat-shield and lower radiator cover on turbo models. Disconnect the radiator hoses, fluid cooler lines, and fan electrical connectors. Remove the radiator mounting brackets and any attached clips or hoses. Lift out the radiator and cooling fans, inspect for leaks and damage. Remove the coolant reservoir and top engine cover. Fill the cooling system with coolant, start the engine, and check for leaks. Recheck coolant level and add transaxle fluid as needed. Tighten the radiator bracket bolts, guide the radiator into the mounts, and fill the cooling system. Check the radiator mounts for deterioration and clean the radiator. Flush the radiator before reinstallation, and reinstall in reverse order. Fill the cooling system with coolant.