Where is the Thermostat Located and How to Replace It on Subaru Outback?

The thermostat located at the engine's front controls the temperature. Drain the cooling system, detach the thermostat housing cover, and check the thermostat's installation. Then, clean the housing and cover surfaces, install a new seal and thermostat, and secure the bolts to the proper torque specifications.

Genuine Subaru Outback Thermostat

Engine Coolant Thermostat

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20 Thermostats found

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Subaru Outback THERMOSTAT
Part Number: 21200AA072
$23.58 MSRP: $32.75
You Save: $9.17 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermo Assembly
- Replaces: 21200AA071, 21200AA070
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Outback | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
- 1996-2004 Subaru Outback | Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, L, L-S, LS, LS-I, Limited, Out Back, Post, SUS, SUS Flat6, SUS Limited | 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 Turbo, 3.0L H6
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA080
$25.50 MSRP: $35.42
You Save: $9.92 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermo And Gasket Assembly; Thermostat, Thermostat Unit
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2014 Subaru Outback | 2.5i, 2.5i Base, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base | 2.5L H4, 3.0L H6, 3.6L H6
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA190
$28.39 MSRP: $39.43
You Save: $11.04 (28%)
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Product Specifications
- Other Name: Thermo And Gasket Assembly; Thermostat
- Replaced by: 21210AA191
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2021 Subaru Outback | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.4L H4 DIT, 2.5L H4
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Subaru Outback THERMO & Gasket Assembly
Part Number: 21210AA260
$41.94 MSRP: $58.25
You Save: $16.31 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermo And Gasket Assembly; Thermostat
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA120
$24.30 MSRP: $33.75
You Save: $9.45 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermo And Gasket Assembly; Thermostat
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium | 2.5L H4 SOHC
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Subaru Outback THERMOSTAT Assembly
Part Number: 21200AA170
$22.14 MSRP: $30.75
You Save: $8.61 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermo Assembly; Thermostat, Thermostat Cover Bolt
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2014 Subaru Outback | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
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Subaru Outback THERMO And Gasket Assembly
Part Number: 21210AA221
$28.39 MSRP: $39.43
You Save: $11.04 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat
- Replaces: 21210AA220
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2021 Subaru Outback | 2.4R F/R-O, 2.4R Limited, 2.4R Touring | 2.4L H4 DIT
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Subaru Outback THERMO And Gasket Assembly
Part Number: 21210AA211
$30.60 MSRP: $42.50
You Save: $11.90 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermostat
- Replaces: 21210AA210
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2014 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DOHC
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA210
$30.60 MSRP: $42.50
You Save: $11.90 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermo And Gasket Assembly
- Replaced by: 21210AA211
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2014 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DOHC
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Subaru Outback THERMOSTAT Assembly
Part Number: 21200AA200
$21.44 MSRP: $29.78
You Save: $8.34 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermo Assembly; Thermostat Unit
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium | 2.5L H4 SOHC
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA160
$29.16 MSRP: $40.50
You Save: $11.34 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermo And Gasket Assembly; Thermostat
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Outback | 2.5GT Limited, 2.5GT Premium | 2.5L H4 Turbo
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Subaru Outback THERMOSTAT Gasket Assembly
Part Number: 21210AA030
$25.03 MSRP: $34.77
You Save: $9.74 (29%)
ADD TO CART
Product Specifications
- Other Name: Thermo And Gasket Assembly; Repair Kit, Thermostat, Thermostat Unit
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2019 Subaru Outback | 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 3.6L H6
- 2000-2009 Subaru Outback | 2.5i, 2.5i Limited, Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, GT Limited, L, L-S, Limited, SUS Flat6, SUS Limited, XT Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
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Subaru Outback THERMO & GSKT Ay
Part Number: 21210AA290
$31.55 MSRP: $43.82
You Save: $12.27 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: 21210AA291
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2021 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.5L H4 DI
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Subaru Outback THMS THERMO Assembly
Part Number: 73540AN01A
$37.54 MSRP: $52.13
You Save: $14.59 (28%)
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:
- 2020-2021 Subaru Outback | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.4L H4 DIT, 2.5L H4 DI
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Subaru Outback THMS THERMO Assembly Eva
Part Number: 73540AN00A
$14.00 MSRP: $19.45
You Save: $5.45 (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:
- 2020-2021 Subaru Outback | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.4L H4 DIT, 2.5L H4 DI
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Subaru Outback THMS THERMO Assembly
Part Number: 73540AJ01A
$145.01 MSRP: $203.10
You Save: $58.09 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat-Cooling; Thermistor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2019 Subaru Outback | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.6L H6
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Subaru Outback THERMOSTAT Assembly
Part Number: 21200AA230
$23.78 MSRP: $33.03
You Save: $9.25 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermo Assembly; Thermostat Unit
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2012 Subaru Outback | 2.5GT Limited, 2.5GT Premium | 2.5L H4 Turbo
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Subaru Outback P1031096 THERMOSTAT
Part Number: 73071AA000
Product Specifications
- Other Name: Thermostat-Cooling
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996 Subaru Outback | Post | 2.2L H4 , 2.2L H4 (New EVAPO)
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Subaru Outback THERMOSTAT Assembly
Part Number: 73540AC100
Product Specifications
- Other Name: Thermostat-Cooling; Thermistor
- Manufacturer Note: ZXL/972290-6320
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999 Subaru Outback | Brighton, GT, L, Out Back, SUS | 2.2L H4 Series, 2.5L H4
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Subaru Outback P1031096 THERMOSTAT
Part Number: 73522AC000
Product Specifications
- Other Name: Thermostat-Cooling
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1997-1999 Subaru Outback | Post | 2.2L H4 (New EVAPO), 2.2L H4 Series

Subaru Outback Thermostat

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

THERMOSTAT
21200AA072
Q: Where is the Thermostat Located and How to Replace It on Subaru Outback?
A: The thermostat located at the engine's front controls the temperature. Drain the cooling system, detach the thermostat housing cover, and check the thermostat's installation. Then, clean the housing and cover surfaces, install a new seal and thermostat, and secure the bolts to the proper torque specifications.