Four Seasons 86039 engine coolant thermostat housing for the 2009-2015 Mercedes-Benz G550 V8 5.5L and other vehicles holds the thermostat that regulates coolant flow. It is a water outlet with the thermostat included, so one piece replaces both.
- Aluminum body coated with a corrosion and rust inhibitor
- 100% leak tested
- Includes a gasket or O-ring for sealing, where applicable
- Thermostat included in the assembly
Quick facts
- Part: Four Seasons 86039 engine coolant thermostat housing
- Fits: 2009-2015 Mercedes-Benz G550 V8 5.5L and other vehicles
- Material: Aluminum
- Condition: New
Coolant seeping around the housing joint, an engine that runs hot or a slow warm-up can mean the housing or thermostat is failing. Before you replace it, rule out a hose, radiator or water pump problem, since any of those can also drain coolant or overheat the engine.
Fits
This direct-fit thermostat housing, which meets and/or exceeds OEM standard, suits the 2009-2015 Mercedes-Benz G550 V8 5.5L, the 2007-2012 Mercedes-Benz GL450 V8 4.7L and the 2008-2012 Mercedes-Benz GL550 V8 5.5L, with one housing needed per vehicle. If your car is not named here, look it up in the Vehicles it fits section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Inlet diameter: 1.875 in
- Discharge end: 0.410 in
- Length: 7.500 in
Build and materials
- Style: with thermostat
- Material: Aluminum
- Gasket or seal: included
- Condition: New
- Country of origin: China
In the box
One thermostat housing with its thermostat and a gasket or seal.
Interchange: 68013949AA · 815859 · 9025903 · 901971 · 34718 · 2722000515 · 2732000215 · 669212 · W98569
This part cross-references / interchanges with the following part numbers:
68013949AA, 815859, 86039, 9025903, 901971, 34718, 2722000515, 2732000215, 669212, W98569
Frequently Asked Questions
Does the Four Seasons 86039 fit the 2007-2012 Mercedes-Benz GL450 V8 4.7L?
Yes. Four Seasons 86039 fits the 2007-2012 Mercedes-Benz GL450 V8 4.7L, and that vehicle takes one. For any other car, look it up in the Vehicles it fits section.
Is the thermostat included with the Four Seasons 86039 housing?
Yes. Four Seasons 86039 comes with the thermostat already included, plus a gasket or seal, so the housing and thermostat arrive as one assembly.
What is this thermostat housing made of, and how big is the inlet?
The housing is aluminum, coated with a corrosion and rust inhibitor. The inlet diameter is 1.875 in and the overall length is 7.500 in.
How do I spot a leaking thermostat housing on a cool engine?
With the engine off and cool, look for coolant residue or dried crust around the housing joint. Overheating or a slow warm-up can also come from the thermostat; a shop can test the cooling system.
Is the Four Seasons 86039 leak tested?
Yes. Each Four Seasons 86039 is 100% leak tested, and it includes a gasket or O-ring for sealing where applicable.
