Aftermarket replacement part
Engine Coolant Thermostat with Seal for Subaru Forester 1998-2013, Impreza 1993-2014, Legacy 1990-2009, Outback 2000-2009, WRX 2013-2016
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.
- Part type
- Cooling System
Product overview
This is an engine coolant thermostat with seal for Subaru boxer engines from 1990 to 2021 and the Saab 9-2X. The thermostat controls coolant flow so the engine warms up quickly and stays at the right temperature. A failing thermostat usually shows up as overheating, a temperature gauge that stays low or swings, weak cabin heat or a check engine light.
Vehicle Fitment
- Saab 9-2X 2005, H4 2.0L; 2005-2006, H4 2.5L
- Subaru Baja 2003-2006, H4 2.5L
- Subaru Forester 1998-2010, H4 2.5L; 2011-2013, H4 2.5L, turbocharged only
- Subaru Impreza 1993-1997, H4 1.8L; 1995-2001, H4 2.2L; 1998-2014, H4 2.5L; 2002-2005, H4 2.0L
- Subaru Legacy 1990-1999, H4 2.2L; 1996-2009, H4 2.5L; 2015-2019, H6 3.6L
- Subaru Outback 2000-2009, H4 2.5L; 2001-2004, H6 3.0L; 2015-2019, H6 3.6L
- Subaru SVX 1992-1997, H6 3.3L
- Subaru WRX 2013-2016, H4 2.5L
- Subaru WRX STI 2013-2018/2020-2021, H4 2.5L
Replaces Part Numbers
34012, THF002, 21210AA030
Specifications
- Start to open temperature: 78°C
- Gasket or seal included: Yes
- Material: Metal and rubber
- Package quantity: 1
What's Included
- 1 thermostat with seal
Before You Order
Match the part number above with the one on your old thermostat, or send us your VIN and we will confirm fitment for you. Let the engine cool, drain some coolant, and clean the sealing surface before installing. Refill, bleed the air from the cooling system and check for leaks after the engine warms up.
Shipping & Returns
Ships within the United States. Orders are processed within 1 business day. 30-day returns with free return shipping and no restocking fee. Questions? Email info@getorvexa.com or text +1 (252) 705-1212.
Vehicle applications
Listed applicationsVehicles this part is listed for. Match your engine and original part number, or send us your VIN and we will confirm fitment for you.
| Make | Model | Years | Engine / notes |
|---|---|---|---|
| Saab | 9-2X | 2005 | H4 2.0L |
| Saab | 9-2X | 2005–2006 | H4 2.5L |
| Subaru | Baja | 2003–2006 | H4 2.5L |
| Subaru | Forester | 1998–2010 | H4 2.5L |
| Subaru | Forester | 2011–2013 | H4 2.5L, turbocharged only |
| Subaru | Impreza | 1993–1997 | H4 1.8L |
| Subaru | Impreza | 1995–2001 | H4 2.2L |
| Subaru | Impreza | 1998–2014 | H4 2.5L |
| Subaru | Impreza | 2002–2005 | H4 2.0L |
| Subaru | Legacy | 1990–1999 | H4 2.2L |
| Subaru | Legacy | 1996–2009 | H4 2.5L |
| Subaru | Legacy | 2015–2019 | H6 3.6L |
| Subaru | Outback | 2000–2009 | H4 2.5L |
| Subaru | Outback | 2001–2004 | H6 3.0L |
| Subaru | Outback | 2015–2019 | H6 3.6L |
| Subaru | SVX | 1992–1997 | H6 3.3L |
| Subaru | WRX | 2013–2016 | H4 2.5L |
| Subaru | WRX STI | 2013–2018 | / H4 2.5L |
| Subaru | WRX STI | 2020–2021 | / H4 2.5L |
Scroll to see all application details
Fitment verification is the buyer's responsibility. A matching year and model alone does not confirm compatibility.
Before installation
Before installation
Professional installation is recommended. Confirm the part, engine code and installation requirements before work begins.
Parts-only liability
Liability is limited to the price paid for the part. Labor, towing, rental vehicles and engine damage are excluded.
Free US shipping
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.