Verified to fit 266 vehicles
| Vehicle | Trim | Engine | Notes |
|---|---|---|---|
| 2015 Subaru Legacy | 3.6R Limited | H6 3.6L | Thermostat; Gasket included: Y |
| 2015 Subaru Outback | 3.6R Limited | H6 3.6L | Thermostat; Gasket included: Y |
| 2015 Subaru WRX STI | Base | H4 2.5L | Thermostat; Gasket included: Y |
| 2015 Subaru WRX STI | Launch Edition | H4 2.5L | Thermostat; Gasket included: Y |
| 2015 Subaru WRX STI | Limited | H4 2.5L | Thermostat; Gasket included: Y |
| 2014 Subaru Impreza | WRX | H4 2.5L | Thermostat; Gasket included: Y |
| 2014 Subaru Impreza | WRX STI | H4 2.5L | Thermostat; Gasket included: Y |
| 2014 Subaru Impreza | WRX STI Limited | H4 2.5L | Thermostat; Gasket included: Y |
| 2013 Subaru Forester | XT Premium | H4 2.5L | Thermostat; Gasket included: Y |
| 2013 Subaru Forester | XT Touring | H4 2.5L | Thermostat; Gasket included: Y |
| 2013 Subaru Impreza | WRX | H4 2.5L | Thermostat; Gasket included: Y |
| 2013 Subaru Impreza | WRX STI | H4 2.5L | Thermostat; Gasket included: Y |
| 2013 Subaru Impreza | WRX STI Limited | H4 2.5L | Thermostat; Gasket included: Y |
| 2012 Subaru Forester | XT Touring | H4 2.5L | Thermostat; Gasket included: Y |
| 2012 Subaru Impreza | WRX | H4 2.5L | Thermostat; Gasket included: Y |

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts

Guaranteed fit — or free return
Currently out of stock
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
Ratings come from verified AutoBuffy buyers after delivery — no imported or paid reviews.

We do not list every part on earth — just the brands automakers actually trust. And we use AI to double-check not just the fitment but the product details on every listing, because we hate buying the wrong part as much as you do.



Top curated brands only
The brands automakers actually put on the car. No white-label mystery boxes.
We're obsessed with fitment
Year, make, model, trim, engine — plus the fine print most sites skip — so it fits the first time.
Search any part number
The number off your old part, a competitor listing, or the dealer part — we cross it and confirm the match.

Facet Engine Coolant Thermostat 7.8397
Out of stock · guaranteed fit or free return
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.

Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
This Facet automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.

Trusted Automotive Brand
Facet is a trusted manufacturer of quality automotive parts.
View all Facet productsThe Facet Engine Coolant Thermostat (7.8397) is a direct-fit replacement for 1990-2015 Subaru vehicles. UPC 012510087534.
Engine Coolant Thermostat
The Facet Engine Coolant Thermostat (7.8397) is a direct-fit replacement for 1990-2015 Subaru vehicles. UPC 012510087534.
This Facet automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.

We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing

Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.