How to replace the thermostat (RPO L61) on 2006 Chevrolet HHR?

To replace the Thermostat (RPO L61), it is necessary to drain the cooling system. Reposition the radiator outlet hose clamp at the Thermostat Housing and remove radiator outlet hose from the Thermostat Housing. Next, remove the Thermostat Housing cover bolts and cover and take out the Thermostat and discard the Thermostat Housing o-ring seal. For installation, begin with attaching a new Thermostat Housing cover o-ring seal and then attach Thermostat. Install thermostate housing cover bolts putting a torque of 10 nm (89 inch lbs). Place the radiator outlet hose clamp at the Thermostat area, and replace the radiator outlet hose back to the Thermostat Housing. Finally, fill the cooling system.

OEM 2006 Chevrolet HHR Thermostat

Engine Coolant Thermostat

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2006 Chevrolet HHR Thermostat Housing, Green Line
Part Number: 12597172
$96.09 MSRP: $197.47
You Save: $101.38 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Engine Coolant Thermostat Housing; Thermostat Housing Cover; Water Manifold; Housing, Engine Coolant Thermostat
- Item Weight: 1.50 Pounds
- Item Dimensions: 9.8 x 9.4 x 4.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12597172
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Chevrolet HHR Submodels:
- LS, LS Panel, LT, LT Panel | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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2006 Chevrolet HHR Thermostat, Green Line
Part Number: 12622410
$67.69 MSRP: $150.82
You Save: $83.13 (56%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assembly-Engine Coolant; Thermostat Kit, Engine Coolant Temperature; Thermostat, Engine Coolant Temperature
- Replaces: 21018811, 55350941, 90537453, 12615097
- Item Weight: 0.50 Pounds
- Item Dimensions: 3.1 x 3.1 x 3.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12622410
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Chevrolet HHR Submodels:
- LS, LS Panel, LT, LT Panel, SS, SS Panel | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS

2006 Chevrolet HHR Thermostat

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2006 Chevrolet HHR Thermostat Parts Questions & Experts Answers

Q: How to replace the thermostat (RPO L61) on 2006 Chevrolet HHR?
A: To replace the Thermostat (RPO L61), it is necessary to drain the cooling system. Reposition the radiator outlet hose clamp at the Thermostat Housing and remove radiator outlet hose from the Thermostat Housing. Next, remove the Thermostat Housing cover bolts and cover and take out the Thermostat and discard the Thermostat Housing o-ring seal. For installation, begin with attaching a new Thermostat Housing cover o-ring seal and then attach Thermostat. Install thermostate housing cover bolts putting a torque of 10 nm (89 inch lbs). Place the radiator outlet hose clamp at the Thermostat area, and replace the radiator outlet hose back to the Thermostat Housing. Finally, fill the cooling system.