Heater Core - 1AHCC00058

Warranty & Shipping
Product Reviews
Vehicle Fit

This new replacement heater core is just what you need to get your vehicle in good running form again!


  • Core measurements: 7 1/8 x 7 3/4 x 1 1/4 inches
  • 3/4 inch inlet tube
  • 3/4 inch outlet tube
  • Direct replacement
  • Replaces dealer part number: 4R702496
  • Built to strict quality control standards
  • For models with 1" aluminum heater cores
    • Does not fit models with 2" copper heater cores

If your heater is not producing heat, or you can smell coolant inside your vehicle, or you see coolant leaking inside your vehicle it is time to replace your heater core.

If the coolant in your vehicle has not been properly maintained it can corrode and or block the coolant tubes inside your heater core. Once the heater core is blocked or leaking the only effective repair is to replace the heater core.

Left Hand Drive Note:

“All of our auto parts are intended for Left Hand Drive USDM vehicles and might not have been tested on Right Hand Drive platforms. If your vehicle is Right Hand Drive, please do your research prior to making a purchase to ensure the part is correct for your specific vehicle.”

Item Condition: New

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Year Make Model Description
1986-1990Buick Electra Buick Electra 4 Door Sedan Heater Core
1986-1990Buick LeSabre Buick LeSabre 4 Door Sedan Heater Core
1991-1999Buick LeSabre Buick LeSabre Heater Core
1991-1996Buick Park Avenue Buick Park Avenue Heater Core
1988-1991Buick Reatta Buick Reatta Heater Core
1986-1993Buick Riviera Buick Riviera Heater Core
1987-1993Cadillac Allante Cadillac Allante Heater Core
1986-1999Cadillac Deville Cadillac Deville Heater Core
1986-2002Cadillac Eldorado Cadillac Eldorado Heater Core
1986-1993Cadillac Fleetwood Cadillac Fleetwood Front Wheel Drive Heater Core
1986-2004Cadillac Seville Cadillac Seville Heater Core
1986-1999Oldsmobile 88 Olds 88 Heater Core
1986-1996Oldsmobile 98 Olds 98 Heater Core
1986-1992Oldsmobile Toronado Olds Toronado Heater Core
1987-1989Pontiac Bonneville Pontiac Bonneville 4 Door Sedan Heater Core
1990-1999Pontiac Bonneville Pontiac Bonneville Heater Core
Only 1 left in stock
Part #: 1AHCC00058

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout