# AISIN THM-012 Engine Coolant Thermostat with Seal for 1997-2011 Mitsubishi Montero

### Specifications

Material: Stainless Steel

Material: Brass

Sealing Flange Outside Diameter: 64.0 mm

Design: Standard

Gasket Or Seal Included: Yes

Start to Open Temperature: 88.0 Deg. C

### Features

-   OE quality parts from top original equipment and aftermarket manufacturers
-   The finest quality at a great price
-   Order from the comfort of your home or office

### Product Details

Engine Coolant Thermostat with Seal (THM-012) by AISIN®. Temperature: 190F. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product and be sure the heart of your vehicle is in good working order.

The cooling system of your automobile is vital to your engine's overall health and longevity. That is why it’s critical to replace leaking, malfunctioning, cracked or otherwise damaged cooling parts and components in time. Without proper cooling, your engine can crack and seize up, which can lead to engine damage. To save your energy, time and money, get the superior OEM parts we offer for your vehicle. Each product is made from high quality materials to maintain proper cooling of your engine and prevent overheating.

Brand: AISIN

Part Number: THM-012

UPC: 030915585668

Alternate MPN: THM012

### Vehicle Fitment Table

|     |     |     |     |     |     |
| --- | --- | --- | --- | --- | --- |
| Year | Make | Model | Position | Fitment Precision | Note |
| 1997 | Mitsubishi | Diamante |     |     |     |
| 1998 | Mitsubishi | Diamante |     |     |     |
| 1999 | Mitsubishi | Diamante |     |     |     |
| 2000 | Mitsubishi | Diamante |     |     |     |
| 2001 | Mitsubishi | Diamante |     |     |     |
| 2002 | Mitsubishi | Diamante |     |     |     |
| 2003 | Mitsubishi | Diamante |     |     |     |
| 2004 | Mitsubishi | Diamante |     |     |     |
| 2000 | Mitsubishi | Eclipse |     |     |     |
| 2001 | Mitsubishi | Eclipse |     |     |     |
| 2002 | Mitsubishi | Eclipse |     |     |     |
| 2003 | Mitsubishi | Eclipse |     |     |     |
| 2004 | Mitsubishi | Eclipse |     |     |     |
| 2005 | Mitsubishi | Eclipse |     |     |     |
| 2004 | Mitsubishi | Endeavor |     |     |     |
| 2005 | Mitsubishi | Endeavor |     |     |     |
| 2006 | Mitsubishi | Endeavor |     |     |     |
| 2007 | Mitsubishi | Endeavor |     |     |     |
| 2008 | Mitsubishi | Endeavor |     |     |     |
| 2010 | Mitsubishi | Endeavor |     |     |     |
| 2011 | Mitsubishi | Endeavor |     |     |     |
| 1999 | Mitsubishi | Galant |     |     |     |
| 2000 | Mitsubishi | Galant |     |     |     |
| 2001 | Mitsubishi | Galant |     |     |     |
| 2002 | Mitsubishi | Galant |     |     |     |
| 2003 | Mitsubishi | Galant |     |     |     |
| 2004 | Mitsubishi | Galant |     |     |     |
| 2005 | Mitsubishi | Galant |     |     |     |
| 2006 | Mitsubishi | Galant |     |     |     |
| 2007 | Mitsubishi | Galant |     |     |     |
| 2009 | Mitsubishi | Galant |     |     |     |
| 1997 | Mitsubishi | Montero |     |     |     |
| 1998 | Mitsubishi | Montero |     |     |     |
| 1999 | Mitsubishi | Montero |     |     |     |
| 2000 | Mitsubishi | Montero |     |     |     |
| 2001 | Mitsubishi | Montero |     |     |     |
| 2002 | Mitsubishi | Montero |     |     |     |
| 1998 | Mitsubishi | Montero Sport |     |     |     |
| 1999 | Mitsubishi | Montero Sport |     |     |     |
| 2000 | Mitsubishi | Montero Sport |     |     |     |
| 2001 | Mitsubishi | Montero Sport |     |     |     |
| 2002 | Mitsubishi | Montero Sport |     |     |     |
| 2003 | Mitsubishi | Montero Sport |     |     |     |
| 2004 | Mitsubishi | Montero Sport |     |     |     |

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is THM-012.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   Engine Coolant Thermostat with Seal for Mitsubishi Montero
-   THM-012 fitment
-   AISIN Engine Coolant Thermostat with Seal
-   1997 Mitsubishi Montero Engine Coolant Thermostat with Seal

## Details

- **Price:** 41.62 CAD
- **Vendor:** AISIN
- **Type:** Engine Coolant Thermostat with Seal
- **Tags:** 1997-2002 Mitsubishi Montero, 1997-2004 Mitsubishi Diamante, 1998-2004 Mitsubishi Montero Sport, 1999-2007 Mitsubishi Galant, 2000-2005 Mitsubishi Eclipse, 2004-2008 Mitsubishi Endeavor, 2009 Mitsubishi Galant, 2010-2011 Mitsubishi Endeavor, AISIN, Automotive, Engine Coolant Thermostat with Seal, THM-012

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 41.62 CAD | In stock |

## Images

- AISIN THM-012 Engine Coolant Thermostat with Seal for 1997-2011 Mitsubishi Montero

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/aisin-thm-012-engine-coolant-thermostat-with-seal)
> Updated: 2026-11-07