2003 Chevy Avalanche Thermostat Housing & Filler Necks
Select Your Submodel
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ACDelco® - Genuine GM Parts™ Engine Coolant Thermostat Housing Assembly$34.45 + Save an extra $2.30 with iD FastTrack -

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Dorman® - OE Solutions™ Engine Coolant Thermostat Housing$21.55 - $29.24 + Save up to $2.00 with iD FastTrack -
Dorman® - OE Solutions™ Engine Coolant Thermostat Housing Assembly$16.88 - $51.36 + Save up to $3.00 with iD FastTrack -

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