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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14 Coolant Reservoirs found

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Subaru Forester Tank Assembly Water
Part Number: 21132AA131
$119.89 MSRP: $166.52
You Save: $46.63 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank Assembly-Water; Reservoir Tank, Tank Assembly
- Replaces: 21132AA130, 21132AA074, 21132AA075
- 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: 45150AG001
$43.90 MSRP: $60.97
You Save: $17.07 (28%)
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 Tank Reserve
Part Number: 45150SG001
$44.42 MSRP: $61.70
You Save: $17.28 (29%)
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
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Subaru Forester Tank Assembly Water
Part Number: 21132AA121
$82.49 MSRP: $114.57
You Save: $32.08 (28%)
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
View related parts
Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150AG011
$48.26 MSRP: $67.03
You Save: $18.77 (28%)
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
View related parts
Subaru Forester Reserve Tank Assembly Radiator
Part Number: 45150SA000
$57.01 MSRP: $79.18
You Save: $22.17 (28%)
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 Reserve Tank Assembly
Part Number: 45151FA050
$51.83 MSRP: $71.98
You Save: $20.15 (28%)
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
View related parts
Subaru Forester Tank Assembly Water
Part Number: 21132AA120
$82.49 MSRP: $114.57
You Save: $32.08 (28%)
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 Tank Assembly Water
Part Number: 21132AA075
$119.89 MSRP: $166.52
You Save: $46.63 (28%)
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
View related parts
Subaru Forester Tank Reserve
Part Number: 45150SJ000
$44.42 MSRP: $61.70
You Save: $17.28 (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:
- 2019-2021 Subaru Forester | Base, Limited, Premium, Sport, Touring
View related parts
Subaru Forester Reserve Tank Assembly-RADIATO
Part Number: 45150SG000
$44.42 MSRP: $61.70
You Save: $17.28 (29%)
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

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.