Agility Autoparts HVAC Heater Core P/N:9010171
Keep warm cabin air flowing with the Agility Auto Parts HVAC Heater Core 9010406, a direct-fit front heater core for the 2004-2007 Buick Rainier, 2003-2009 Chevrolet TrailBlazer, 2003-2006 Chevrolet TrailBlazer EXT, 2003-2009 GMC Envoy, 2003-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2003-2008 Isuzu Ascender, 2003-2004 Oldsmobile Bravada, 2005 Saab 9-2X, and 2005-2009 Saab 9-7X. See the Buyer's Guide tab for engine-specific coverage. The heater core routes hot engine coolant through its tubes and fins so the blower can move warmed air into the cabin and to the defrost vents.
Signs a heater core may need replacing include weak or no cabin heat, coolant seeping under the dash, fogged windows, or a sweet coolant smell inside.
Interchange: 18-11705
1811705 · 8406 · 96066 · 52498633 · 98058 · 92019 · 399154 · 93058
This part cross-references / interchanges with the following part numbers:
What does this heater core do?
It routes hot engine coolant through its tubes and fins so the blower motor can push warmed air into the cabin and to the defrost vents.
Will this fit my vehicle?
It's a direct-fit front heater core for applications like the 2003-2009 Chevrolet TrailBlazer and GMC Envoy. Check the Buyer's Guide tab to confirm your exact year, make, model, and engine.
Is it ready to install out of the box?
Yes. Agility heaters are fitment-checked in the actual vehicle's HVAC heater module for a drop-in fit and meet or exceed OE specifications.
How is quality verified?
It is engineered and manufactured under ISO TS16949 quality systems and is 100% leak tested before shipping.
What are signs my heater core is failing?
Common signs include weak or no cabin heat, coolant leaking under the dash, fogged-up windows, or a sweet coolant smell inside the cabin. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.