Restore cabin heat and defrost performance with the Agility Auto Parts HVAC Heater Core 9010215 — the compact tube-and-fin exchanger that circulates hot engine coolant to warm the air your blower pushes through the dash. It drops in as a direct-fit replacement for the 1988-1991 Chevrolet C1500, C2500, C3500, K1500, K2500 and K3500; the 1991 Chevrolet C3500HD; the 1990 Chevrolet C50, C60 and C70; the 1990-1992 Chevrolet C60 Kodiak and C70 Kodiak; the 1988-1991 GMC C1500, C2500, C3500, K1500, K2500 and K3500; and the 1991 GMC C3500HD. See the Buyer's Guide tab for the full application list and engine-level details.
If your original heater core is leaking coolant, clogged, or no longer warming the cabin, this Agility core is the OE-replacement fix.
Interchange: 18-11834
1811834 · 60048 · 8304 · 96056 · 3091251 · 52452918 · 98484 · 90484 · 398241 · 94484 · 90526
This part cross-references / interchanges with the following part numbers:
What does the heater core do?
It's a small tube-and-fin exchanger that circulates hot engine coolant so the blower can pass air across it and warm the cabin, also feeding the defrost function.
Is this a direct fit for my truck?
Yes. It's a direct-fit replacement for the listed Chevrolet and GMC applications and is fitment-checked in the vehicle's HVAC heater module for a drop-in install. Confirm your vehicle in the Buyer's Guide tab.
What are signs my heater core needs replacing?
Common signs include weak or no cabin heat, coolant leaking onto the passenger floor, fogged windows with a sweet smell, or unexplained coolant loss.
Does it meet OE specifications?
Yes. Agility states this core is built to meet or exceed OE specifications, is manufactured under ISO TS16949 quality systems, and is 100% leak tested.
Which numbers does this part interchange with?
It cross-references 18-11834, 60048, 8304, 96056, 3091251, 52452918, 98484, 90484, 398241, 94484, and 90526. Match your original number to confirm.
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.
