Motorad CH3109 lower engine coolant thermostat housing for the 2014-2022 Toyota Corolla 4-cylinder 1.8L and other vehicles houses the thermostat and carries coolant. Made by an OE supplier, the housing meets or exceeds all OEM standards.
- Aluminum body made to stand up to demanding automotive cooling systems
- Housing design is thermal shock validated
- Every housing is 100% leak tested
- Two outlets with a 0.67 in (17.02 mm) outlet port diameter
- Three mounting holes, each 0.27 in (6.86 mm) in diameter
Quick facts
- Part: Motorad CH3109 engine coolant thermostat housing
- Also called: engine coolant water outlet
- Fits: 2014-2022 Toyota Corolla 4-cylinder 1.8L and other vehicles
- Position: Lower
- Material: Aluminum
A failing thermostat housing can show up as coolant drips or crusty residue around its flange, a coolant level that keeps dropping or a temperature gauge that reads high. Check the coolant level only with the engine cool. Before you replace the housing, rule out a loose hose clamp, a split radiator hose or a worn gasket as the source of the leak.
Fits
The 2014-2022 Toyota Corolla 4-cylinder 1.8L, the 2018-2022 Toyota C-HR 4-cylinder 2.0L and the 2017-2018 Toyota Corolla iM 4-cylinder 1.8L are among the vehicles this lower thermostat housing fits, and it fits other models as well. This listing is one housing, and the 2018-2022 Toyota C-HR 4-cylinder 2.0L takes one.
Specifications
Fit and size
- Position: Lower
- Quantity per vehicle: 1
- Inlet port diameter: 2.70 in (68.58 mm)
- Outlet port diameter: 0.67 in (17.02 mm), 2 outlets
- Mounting holes: 3, 0.27 in (6.86 mm) diameter
- Bolt hole center to bolt hole center: 2.65 in (67.31 mm), 2.88 in (73.15 mm), 3.04 in (77.22 mm)
- Flange thickness: 0.56 in (14.22 mm)
- Height: 3.50 in (88.90 mm)
Build and materials
- Material: Aluminum
- Grade type: Standard replacement
- Country of origin: China
In the box
One engine coolant thermostat housing. The gasket or seal, mounting hardware, bleeder screw and sensor are not included; plan on new mounting bolts, as the old ones may not be reusable.
Installation notes
- No special tools required.
- Easy, one-step fit and installation.
Interchange: 9013HC · CO35036 · 1632337040
This part cross-references / interchanges with the following part numbers:
9013HC, CH3109, CO35036, 1632337040
Frequently Asked Questions
Will the Motorad CH3109 fit a 2018-2022 Toyota C-HR 4-cylinder 2.0L?
Yes. The Motorad CH3109 lower thermostat housing fits the 2018-2022 Toyota C-HR 4-cylinder 2.0L and the 2014-2022 Toyota Corolla 4-cylinder 1.8L; if your car is not named here, look it up in the "Vehicles it fits" section.
What are the inlet and outlet port sizes on this lower thermostat housing?
This lower thermostat housing has a 2.70 in (68.58 mm) inlet port diameter and two outlets with a 0.67 in (17.02 mm) outlet port diameter.
Does the CH3109 come with a gasket or bolts?
No. The Motorad CH3109 is the housing only; the gasket or seal, mounting hardware, bleeder screw and sensor are not included.
What signs can point to a cracked engine coolant water outlet?
Dried coolant around the housing, a coolant level that drops over time when checked with the engine cool, and a high temperature gauge reading can mean the housing is cracked or leaking.
Is this aluminum thermostat housing leak tested?
Yes. Every one of these aluminum thermostat housings is 100% leak tested, and the design is thermal shock validated.
