/live/media/FT/FT_78354_Fro.jpg)
OE Quality
60-Day Returns
Facet 7.8354 Engine Coolant Thermostat
| Brand | Facet 7.8354 |
|---|---|
| Fits | Mazda · 39 vehicles |
Engine coolant thermostat. Regulates coolant flow to help maintain proper operating temperature.
$25.91Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Thermostat options
Facet 7.8354 Engine Coolant Thermostat
Facet 7.8354 is an engine coolant thermostat kit for select Mazda applications. It is listed with gasket included and is built for direct replacement service on covered Mazda Miata and Mazda Protege models.
Key Features
- Engine coolant thermostat kit for cooling system service
- Gasket included for the listed applications
- Direct-fit replacement for select Mazda Miata and Mazda Protege vehicles
- Facet part number 7.8354 for easy identification
Compatible Vehicle Applications
- Fits 2001-2005 Mazda Miata, N/A. Engine coolant thermostat kit with gasket included.
- Fits 1996-2001 Mazda Protege, N/A. Engine coolant thermostat kit with gasket included.
- Fits 1999-2000 Mazda Miata, N/A. Incl. gasket; gasket included: Y.
- Fits 1995 Mazda Protege, N/A. From 04/12/1995; gasket included: Y.
What It Is Used For
- Replacing a thermostat that is stuck open or stuck closed
- Restoring proper engine warm-up and coolant flow control
- Addressing temperature fluctuation or slow operating temperature rise
- Servicing a leaking thermostat housing seal area where the gasket is part of the repair
Installation Notes and Tips
Verify engine application by year and model before ordering. Clean the sealing surfaces thoroughly before installation and inspect the cooling system for contamination, hose wear, or coolant condition while the thermostat is removed. Follow the vehicle service procedure for coolant refill and bleed steps after installation.
Quality Assurance
Facet cooling system components are cataloged for specific vehicle applications to support accurate replacement selection. This part cross-references no listed alternate part numbers in the provided data.
This part fits 39 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Mazda | Miata | Base | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2005 | Mazda | Miata | LS | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2005 | Mazda | Miata | Mazdaspeed | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2004 | Mazda | Miata | Base | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2004 | Mazda | Miata | LS | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2004 | Mazda | Miata | Mazdaspeed | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2003 | Mazda | Miata | LS | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2003 | Mazda | Miata | SE | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2003 | Mazda | Miata | Base | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2003 | Mazda | Miata | Shinsen | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2002 | Mazda | Miata | LS | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2002 | Mazda | Miata | SE | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2002 | Mazda | Miata | Base | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2001 | Mazda | Miata | LS | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2001 | Mazda | Miata | Base | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2001 | Mazda | Miata | SE | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2001 | Mazda | Protege | LX | 1.6L | L4 | N/A | Engine coolant thermostat kit with gasket included. |
| 2001 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2000 | Mazda | Miata | LS | — | — | N/A | Incl.Gasket; Gasket included: Y |
| 2000 | Mazda | Miata | SE | — | — | N/A | Incl.Gasket; Gasket included: Y |
| 2000 | Mazda | Miata | Base | — | — | N/A | Incl.Gasket; Gasket included: Y |
| 2000 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 2000 | Mazda | Protege | LX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1999 | Mazda | Miata | Base | — | — | N/A | Incl.Gasket; Gasket included: Y |
| 1999 | Mazda | Miata | 10th Anniversary | — | — | N/A | Incl.Gasket; Gasket included: Y |
| 1999 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1999 | Mazda | Protege | LX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1998 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1998 | Mazda | Protege | ES | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1998 | Mazda | Protege | LX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1997 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1997 | Mazda | Protege | LX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1997 | Mazda | Protege | ES | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1996 | Mazda | Protege | ES | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1996 | Mazda | Protege | DX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1996 | Mazda | Protege | LX | — | — | N/A | Engine coolant thermostat kit with gasket included. |
| 1995 | Mazda | Protege | ES | — | — | N/A | From 04/12/1995; Gasket included: Y |
| 1995 | Mazda | Protege | LX | — | — | N/A | From 04/12/1995; Gasket included: Y |
| 1995 | Mazda | Protege | DX | — | — | N/A | From 04/12/1995; Gasket included: Y |
| No rows match your filter. | |||||||