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- Description
- Fitment
- Warranty and Refund
- Reviews
Keep your engine's cooling system operating as intended with the AISIN THF-008 Engine Coolant Thermostat. This component plays a key role in regulating coolant flow, helping your engine reach and maintain the proper operating temperature.
Designed as a replacement part for your vehicle's cooling system, the THF-008 is a straightforward choice for drivers tackling a thermostat repair or routine maintenance. AISIN is a recognized name in automotive components, and this thermostat is built to serve as a functional replacement for engines that require this exact part.
Notes
Engine Coolant Thermostat Assembly
Features
- Helps regulate coolant flow to support proper engine operating temperature
- Designed as a functional replacement for worn or failing thermostats
- Straightforward choice for cooling system repair or maintenance projects
- Part of AISIN's Belts and Cooling component offerings
- Fits into the Thermostat and Housing sub-category for easy identification
Application Summary
2017-2023 Subaru Impreza 2.0L 1995CC -CID H4 DOHC 16 Valve Naturally Aspirated GAS2018-2020, 2023 Subaru Crosstrek 2.0L 1995CC -CID H4 DOHC 16 Valve Naturally Aspirated GAS
2021-2022 Subaru Crosstrek 2.5L 2498CC 152CID H4 DOHC 16 Valve Naturally Aspirated GAS
Specifications
- Brand: AISIN
- Part Number: THF-008
- Part Type: Engine Coolant Thermostat
- UPC: 4580281471028
- GTIN: 04580281471028
- Item Dimensions: 2.9500 x 2.9500 x 2.7600 IN
- Package Dimensions: 2.9500 x 2.9500 x 2.7600 IN
- Package Weight: 0.2500 PG
- Package Quantity: 1 EA
- Material: Stainless Steel
- Material: Brass
- Sealing Flange Outside Diameter: 56.0
- Design: Standard
- Gasket Or Seal Included: Yes
- Start to Open Temperature: 195.8
- Start to Open Temperature: 91.0
- Bypass Flange Diameter: 28.0
Interchange
- Motorad: 762-192
- Gates: 34808
- Subaru: 21210AA300
- NAPA: THF008
Warranty
- Warranty Duration: 12 Months
- Warranty Mileage: 12000 Miles
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









