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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

Price $33.23 USD Available to order

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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 applications

Vehicles this part is listed for. Match your engine and original part number, or send us your VIN and we will confirm fitment for you.

Vehicle applications
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.