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.”

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. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1986-1990 Buick Electra 4 Door Sedan Heater Core
  • 1986-1990 Buick LeSabre 4 Door Sedan Heater Core
  • 1991-1999 Buick LeSabre Heater Core
  • 1991-1996 Buick Park Avenue Heater Core
  • 1988-1991 Buick Reatta Heater Core
  • 1986-1993 Buick Riviera Heater Core
  • 1987-1993 Cadillac Allante Heater Core
  • 1986-1999 Cadillac Deville Heater Core
  • 1986-2002 Cadillac Eldorado Heater Core
  • 1986-1993 Cadillac Fleetwood Front Wheel Drive Heater Core
  • 1986-2004 Cadillac Seville Heater Core
  • 1986-1999 Olds 88 Heater Core
  • 1986-1996 Olds 98 Heater Core
  • 1986-1992 Olds Toronado Heater Core
  • 1987-1989 Pontiac Bonneville 4 Door Sedan Heater Core
  • 1990-1999 Pontiac Bonneville Heater Core

This part replaces:

  • Spectra Premium Industries 94480
  • Hollander 676-00370
  • OE # 4R702496
Only 1 left in stock
Part #: 1AHCC00058

Ships Same Day for orders placed by 4 P.M. ET