Keep engine coolant moving through the right passages with the Dorman - OE Solutions Engine Coolant Thermostat Housing Assembly 902-682. It installs as a direct-fit replacement across a broad range of Ford, Lincoln and Mazda applications, from the 2013-2019 Ford EcoSport and 2013-2018 Ford Focus to the 2004-2013 Mazda 3 and 2006-2015 Mazda MX-5.
As part of the cooling system, the housing holds the thermostat and provides the coolant connection points between the engine and radiator, helping the thermostat control coolant flow as the engine warms up and reaches operating temperature. A cracked or leaking housing lets coolant escape, so a sound replacement keeps that section of the circuit sealed.
- Direct-fit replacement: designed as a direct-fit replacement for the listed applications.
- Cooling-system role: supplies the mounting and coolant passages for the thermostat in the engine's cooling circuit.
- Signs it may need replacing: coolant leaks or seepage around the housing, visible cracks, or overheating — if a failed housing is the cause, this replaces it. Diagnose the cause before replacing.
Interchange: 143-0838 · 1430838 · 51480 · 1476110 · 4M5G8575FC · CJ5Z8575A · M4M5G8575FC · 85994 · 34046 · TM170C · LF5015170 · LF5015170A · LF5015170B · LF5015170C · LF5315170 · LF5315170A · LF5315170B · LF7015170 · LFE515170 · 514-185 · 514185 · 7315 · 48728
Manufacturer part number 902-682 (also 902682).
Fitment:
- 2004-2013 Mazda 3
- 2006-2010 Mazda 5
- 2006-2015 Mazda MX-5
- 2006-2015 Mazda MX-5 Miata
- 2008 Ford Fiesta
- 2009-2011 Mazda 3 Sport
- 2013-2019 Ford EcoSport
- 2013-2016 Ford Escape
- 2013-2015 Ford Explorer
- 2013-2018 Ford Focus
- 2013-2016 Ford Fusion
- 2013-2017 Ford Taurus
- 2013-2016 Lincoln MKT
- 2013-2016 Lincoln MKZ
- 2014-2018 Ford Special Service Police Sedan
- 2015-2016 Lincoln MKC
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is the Dorman 902-682?
It's an Engine Coolant Thermostat Housing Assembly that provides the mounting and coolant passages for the thermostat in the engine's cooling system, offered as a direct-fit replacement for the listed applications.
Which vehicles does it fit?
It fits a range of Ford, Lincoln and Mazda models, including the 2013-2019 Ford EcoSport, 2004-2013 Mazda 3 and 2006-2015 Mazda MX-5. See the Buyer's Guide tab for the full list.
What are signs the thermostat housing may need replacing?
Common signs include coolant leaks or seepage around the housing, visible cracks, or engine overheating. Diagnose the cause first, since these symptoms can have other sources.
Is this a direct-fit replacement?
Yes—it's a direct-fit replacement for the listed Ford, Lincoln and Mazda applications. Confirm your vehicle in the Buyer's Guide before ordering.
What part numbers does this replace?
It cross-references numbers such as 4M5G8575FC, CJ5Z8575A, LF5015170 and 514-185, among the others shown on the Interchange line.
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