Thermostat - Subaru (21210AA291)
We offer only Original Subaru Parts
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Thermostat - Subaru (21210AA291)
We offer only Original Subaru Parts
- Subaru
- 21210AA291
- 21210aa290
Details
- Brand:
- SKU:
21210AA291
- Positions: Upper
- Other Names:
Thermo & Gasket Ay
- Description:
Forester. Legacy, Outback. Crosstrek. Transmission Cooling. Incl.Gasket. 2.5L.
Engine Coolant Thermostat - Subaru (21210AA291)
Maintain precise engine temperature regulation with the Engine Coolant Thermostat - Subaru (21210AA291), a Genuine OEM part designed to meet Subaru’s original factory specifications. This thermostat plays a vital role in your vehicle's cooling system by controlling coolant flow and ensuring optimal operating temperatures for performance and engine longevity.
Crafted from heat-resistant, corrosion-proof materials, the thermostat is engineered for durability and accurate thermal response. It opens and closes at the correct temperature threshold, allowing coolant to circulate only when needed—helping to prevent both overheating and excessive engine wear caused by cold starts.
Designed specifically for compatible Subaru engines, this thermostat ensures seamless integration without the need for modifications. It fits directly into the OEM housing and connects to existing cooling system components, making installation straightforward for professional mechanics and DIY enthusiasts alike.
A failing thermostat can lead to poor fuel efficiency, increased emissions, or engine damage. Replacing it with a genuine Subaru part like the 21210AA291 restores your cooling system’s original efficiency, helping preserve engine health and maintain consistent driving performance.
✔ Genuine OEM Subaru part for accurate temperature control
✔ Durable, corrosion-resistant construction for long service life
✔ Precision-calibrated to factory temperature specifications
✔ Direct-fit replacement—no adjustments or modifications required
✔ Supports fuel efficiency, emissions control, and engine protection
Choose the Engine Coolant Thermostat - Subaru (21210AA291) to ensure your vehicle operates at the right temperature every time. Whether you're troubleshooting cooling issues or performing scheduled maintenance, this OEM component delivers the quality, reliability, and performance your Subaru deserves.
- Condition: New
- Notes: Includes thermostat gasket.
- Applications: 2.5L. 2.4L.
- Replaces:
21210aa290
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov - MSRP: $39.43
- Discount: $11.98 (30.4% off)
- Sale Price: $27.45
Thermostat - Subaru (21210AA291)
We offer only Original Subaru Parts
- Subaru
- 21210AA291
- 21210aa290
Details
- Brand:
- SKU:
21210AA291
- Positions: Upper
- Other Names:
Thermo & Gasket Ay
- Description:
Forester. Legacy, Outback. Crosstrek. Transmission Cooling. Incl.Gasket. 2.5L.
Engine Coolant Thermostat - Subaru (21210AA291)
Maintain precise engine temperature regulation with the Engine Coolant Thermostat - Subaru (21210AA291), a Genuine OEM part designed to meet Subaru’s original factory specifications. This thermostat plays a vital role in your vehicle's cooling system by controlling coolant flow and ensuring optimal operating temperatures for performance and engine longevity.
Crafted from heat-resistant, corrosion-proof materials, the thermostat is engineered for durability and accurate thermal response. It opens and closes at the correct temperature threshold, allowing coolant to circulate only when needed—helping to prevent both overheating and excessive engine wear caused by cold starts.
Designed specifically for compatible Subaru engines, this thermostat ensures seamless integration without the need for modifications. It fits directly into the OEM housing and connects to existing cooling system components, making installation straightforward for professional mechanics and DIY enthusiasts alike.
A failing thermostat can lead to poor fuel efficiency, increased emissions, or engine damage. Replacing it with a genuine Subaru part like the 21210AA291 restores your cooling system’s original efficiency, helping preserve engine health and maintain consistent driving performance.
✔ Genuine OEM Subaru part for accurate temperature control
✔ Durable, corrosion-resistant construction for long service life
✔ Precision-calibrated to factory temperature specifications
✔ Direct-fit replacement—no adjustments or modifications required
✔ Supports fuel efficiency, emissions control, and engine protection
Choose the Engine Coolant Thermostat - Subaru (21210AA291) to ensure your vehicle operates at the right temperature every time. Whether you're troubleshooting cooling issues or performing scheduled maintenance, this OEM component delivers the quality, reliability, and performance your Subaru deserves.
- Condition: New
- Notes: Includes thermostat gasket.
- Applications: 2.5L. 2.4L.
- Replaces:
21210aa290
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Also Purchased
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
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Subaru Parts Pros - South Shore Subaru
SubaruPartsPros.com proudly operates as part of South Shore Subaru located in NY. As a Genuine S.O.A Parts dealership we have the ability to obtain any and all Subaru parts needed to fix and maintain your vehicle. We understand shopping for parts online can be confusing and stressful at times because the last thing you want is the wrong part. Rest assured though as when you shop our online store and provide your vehicle identification number (VIN) at checkout it is our duty to make sure each and every part ordered fits your vehicle. In cases where we find a mis-match we will contact you immediately and make the proper correction to your order. Please feel free to drop us a line by using the contact us page or chat live with one of our agents.