Tackle a leaking or cracked thermostat housing in one bolt-on job with the Four Seasons Coolant Water Outlet Housing Kit 86225, an outlet and thermostat housing kit that comes with the thermostat. It fits many vehicles, among them the 2015-2020 Mercedes-Benz GLA250, 2013-2019 Mercedes-Benz B250 and 2014-2019 Mercedes-Benz CLA200. See the "Vehicles it fits" section for the full list and engine details.
The water outlet housing routes coolant out of the engine and holds the thermostat, which opens and closes to help regulate coolant flow and engine temperature. Four Seasons engineers and tests its products and brings more than 50 years of mobile A/C experience to its parts.
- All-in-one, bolt-on kit: the housing and thermostat come together, so both can be replaced in a single repair.
- Thermostat included: a quality thermostat is part of the kit.
- Corrosion protection: coated with a corrosion and rust inhibitor.
- 100% leak tested: every unit is leak tested.
- Direct fit: a direct-fit replacement for the listed applications, for easier installation.
Signs that this part may need replacing include coolant leaks or residue around the housing, a cracked housing, overheating, or an erratic temperature gauge. If a failed housing or thermostat is the cause, this kit is designed to replace both at once.
Interchange: 817055 · 9025187 · 2702000415 · 2702000615 · 2702002200 · 936207 · W98755
This part cross-references / interchanges with the following part numbers:
817055, 86225, 9025187, 2702000415, 2702000615, 2702002200, 936207, W98755
Frequently Asked Questions
What is an engine coolant water outlet housing kit?
It is a water outlet and thermostat housing assembly that routes engine coolant and holds the thermostat. The Four Seasons 86225 kit includes the thermostat.
Is the thermostat included with this kit?
Yes. The kit includes a quality thermostat along with the outlet and thermostat housing, so both can be replaced in one bolt-on job.
Will this fit a 2015-2020 Mercedes-Benz GLA250?
Yes, the 2015-2020 Mercedes-Benz GLA250 is one of the listed applications. The "Vehicles it fits" section shows the full fitment chart.
What are signs the housing or thermostat may need replacing?
Common signs include coolant leaks or residue around the housing, a cracked housing, overheating, or an erratic temperature gauge. Diagnose the cause before replacing parts.
Is the housing protected against corrosion?
Yes. It is coated with a corrosion and rust inhibitor, and every unit is 100% leak tested.
