Universal Air
Heater Core Aluminum

Universal Air HT398214C HVAC Heater Core

Brand Universal Air CMS501226
Adjustable No
Finish Corrosion Resistant
Length 17.95
Width 6.15
Product line Heater Core Aluminum
Fits 202 vehicles

Aluminum construction. Helps promote efficient heat transfer in the heater core.

Heater core. A core component for the HVAC heating system.

$71.29Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Universal Air Heater Core Aluminum HT398214C

Universal Air HT398214C is an aluminum HVAC heater core for select Cadillac, Buick, Oldsmobile, and Pontiac applications. It is built for direct replacement use in vehicles that need a heater core service part for cabin heat performance.

Key Features

  • Aluminum heater core construction
  • HVAC heater core for heating system repair
  • Fits a wide range of GM full-size and luxury models
  • Application-specific coverage for select vehicles with and without Automatic Temperature Control restrictions
  • Part number: HT398214C

Fitment Coverage

  • Fits 1986-2002 Cadillac Eldorado, N/A
  • Fits 1991-1999 Buick LeSabre, N/A
  • Fits 1986-1999 Cadillac DeVille, N/A
  • Fits 1992-1999 Oldsmobile 88, N/A
  • Fits 1996-1999 Oldsmobile LSS, N/A
  • Fits 1991-1999 Pontiac Bonneville, N/A
  • Fits 1997-1998 Oldsmobile Regency, N/A
  • Fits 1986-1997 Cadillac Seville, N/A
  • Fits 1991-1996 Buick Park Avenue, N/A
  • Fits 1991-1996 Oldsmobile 98, N/A
  • Fits 1986-1993 Buick Riviera, N/A
  • Fits 1987-1993 Cadillac Allante, N/A
  • Fits 1986-1993 Cadillac Commercial Chassis, N/A
  • Fits 1986-1992 Cadillac Fleetwood, N/A
  • Fits 1986-1992 Oldsmobile Toronado, N/A
  • Fits 1988-1991 Buick Reatta, N/A
  • Fits 1991 Oldsmobile Delta 88, N/A
  • Fits 1986-1990 Buick LeSabre, N/A; not compatible with Automatic Temperature Control system
  • Fits 1986-1990 Oldsmobile 98, N/A; not compatible with Automatic Temperature Control system
  • Fits 1986-1990 Oldsmobile Delta 88, N/A; not compatible with Automatic Temperature Control system
  • Fits 1987-1990 Pontiac Bonneville, N/A; not compatible with Automatic Temperature Control system

What It Helps Address

  • Loss of cabin heat from a leaking or restricted heater core
  • Coolant odor or moisture inside the HVAC case area
  • Poor defrost performance caused by reduced heater output
  • Temperature inconsistency in the vehicle heating system
  • Service replacement for aging aluminum heater core assemblies

Installation Notes

Verify the vehicle year, make, model, and HVAC configuration before ordering. This part number includes fitment exceptions for certain Buick, Oldsmobile, and Pontiac applications that are not compatible with Automatic Temperature Control systems, so confirm the original system type before installation. For best results, inspect the cooling system, hoses, and HVAC case components during heater core replacement.

Quality Assurance

Universal Air heater core part HT398214C is listed for specific GM applications and built as an aluminum HVAC replacement component. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

This part fits 202 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody Type# DoorsDrive TypeLitersCylindersPositionNotes
2002CadillacEldoradoN/AHeater Core Aluminum
2001CadillacEldoradoN/AHeater Core Aluminum
2000CadillacEldoradoN/AHeater Core Aluminum
1999BuickLeSabreN/AHeater Core Aluminum
1999CadillacDeVilleBaseN/AHeater Core Aluminum
1999CadillacDeVilleConcoursN/AHeater Core Aluminum
1999CadillacDeVilled'EleganceN/AHeater Core Aluminum
1999CadillacEldoradoN/AHeater Core Aluminum
1999Oldsmobile88RoyaleN/AHeater Core Aluminum
1999Oldsmobile88Royale LSN/AHeater Core Aluminum
1999OldsmobileLSSN/AHeater Core Aluminum
1999PontiacBonnevilleN/AHeater Core Aluminum
1998BuickLeSabreN/AHeater Core Aluminum
1998CadillacDeVilleBaseN/AHeater Core Aluminum
1998CadillacDeVilled'EleganceN/AHeater Core Aluminum
1998CadillacDeVilleConcoursN/AHeater Core Aluminum
1998CadillacEldoradoN/AHeater Core Aluminum
1998Oldsmobile88N/AHeater Core Aluminum
1998OldsmobileLSSN/AHeater Core Aluminum
1998OldsmobileRegencyN/AHeater Core Aluminum
1998PontiacBonnevilleSEN/AHeater Core Aluminum
1998PontiacBonnevilleSSEN/AHeater Core Aluminum
1997BuickLeSabreN/AHeater Core Aluminum
1997CadillacDeVilled'EleganceN/AHeater Core Aluminum
1997CadillacDeVilleBaseN/AHeater Core Aluminum
1997CadillacDeVilleConcoursN/AHeater Core Aluminum
1997CadillacEldoradoETCN/AHeater Core Aluminum
1997CadillacEldoradoBaseN/AHeater Core Aluminum
1997CadillacSevilleSLSN/AHeater Core Aluminum
1997CadillacSevilleSTSN/AHeater Core Aluminum
1997Oldsmobile88N/AHeater Core Aluminum
1997OldsmobileLSSN/AHeater Core Aluminum
1997OldsmobileRegencyN/AHeater Core Aluminum
1997PontiacBonnevilleSEN/AHeater Core Aluminum
1997PontiacBonnevilleSSEN/AHeater Core Aluminum
1996BuickLeSabreN/AHeater Core Aluminum
1996BuickPark AvenueN/AHeater Core Aluminum
1996CadillacDeVilleBaseN/AHeater Core Aluminum
1996CadillacDeVilled'EleganceN/AHeater Core Aluminum
1996CadillacDeVilleConcoursN/AHeater Core Aluminum
1996CadillacEldoradoBaseN/AHeater Core Aluminum
1996CadillacEldoradoETCN/AHeater Core Aluminum
1996CadillacSevilleSLSN/AHeater Core Aluminum
1996CadillacSevilleSTSN/AHeater Core Aluminum
1996Oldsmobile88N/AHeater Core Aluminum
1996Oldsmobile98N/AHeater Core Aluminum
1996OldsmobileLSSN/AHeater Core Aluminum
1996PontiacBonnevilleSSEN/AHeater Core Aluminum
1996PontiacBonnevilleSEN/AHeater Core Aluminum
1995BuickLeSabreN/AHeater Core Aluminum
1995BuickPark AvenueN/AHeater Core Aluminum
1995CadillacDeVilleN/AHeater Core Aluminum
1995CadillacEldoradoETCN/AHeater Core Aluminum
1995CadillacEldoradoBaseN/AHeater Core Aluminum
1995CadillacSevilleSLSN/AHeater Core Aluminum
1995CadillacSevilleSTSN/AHeater Core Aluminum
1995Oldsmobile88Royale LSSN/AHeater Core Aluminum
1995Oldsmobile88RoyaleN/AHeater Core Aluminum
1995Oldsmobile88Royale LSN/AHeater Core Aluminum
1995Oldsmobile98N/AHeater Core Aluminum
1995PontiacBonnevilleSEN/AHeater Core Aluminum
1995PontiacBonnevilleSSEN/AHeater Core Aluminum
1994BuickLeSabreN/AHeater Core Aluminum
1994BuickPark AvenueN/AHeater Core Aluminum
1994CadillacDeVilleN/AHeater Core Aluminum
1994CadillacEldoradoBaseN/AHeater Core Aluminum
1994CadillacEldoradoTouringN/AHeater Core Aluminum
1994CadillacSevilleSLSN/AHeater Core Aluminum
1994CadillacSevilleSTSN/AHeater Core Aluminum
1994Oldsmobile88N/AHeater Core Aluminum
1994Oldsmobile98N/AHeater Core Aluminum
1994PontiacBonnevilleSSEN/AHeater Core Aluminum
1994PontiacBonnevilleSEN/AHeater Core Aluminum
1993BuickLeSabreN/AHeater Core Aluminum
1993BuickPark AvenueN/AHeater Core Aluminum
1993BuickRivieraN/AHeater Core Aluminum
1993CadillacAllanteN/AHeater Core Aluminum
1993CadillacCommercial ChassisBase4.9LV8N/AHeater Core Aluminum
1993CadillacDeVilleTouringN/AHeater Core Aluminum
1993CadillacDeVilleBaseN/AHeater Core Aluminum
1993CadillacEldoradoN/AHeater Core Aluminum
1993CadillacSevilleN/AHeater Core Aluminum
1993Oldsmobile88N/AHeater Core Aluminum
1993Oldsmobile98N/AHeater Core Aluminum
1993PontiacBonnevilleSEN/AHeater Core Aluminum
1993PontiacBonnevilleSSEN/AHeater Core Aluminum
1993PontiacBonnevilleSSEiN/AHeater Core Aluminum
1992BuickLeSabreN/AHeater Core Aluminum
1992BuickPark AvenueN/AHeater Core Aluminum
1992BuickRivieraN/AHeater Core Aluminum
1992CadillacAllanteN/AHeater Core Aluminum
1992CadillacCommercial ChassisBase4.9LV8N/AHeater Core Aluminum
1992CadillacDeVilleBaseN/AHeater Core Aluminum
1992CadillacDeVilleTouringN/AHeater Core Aluminum
1992CadillacEldoradoN/AHeater Core Aluminum
1992CadillacFleetwoodN/AHeater Core Aluminum
1992CadillacSevilleN/AHeater Core Aluminum
1992Oldsmobile88N/AHeater Core Aluminum
1992Oldsmobile98N/AHeater Core Aluminum
1992OldsmobileToronadoN/AHeater Core Aluminum
1992PontiacBonnevilleSSEiN/AHeater Core Aluminum
1992PontiacBonnevilleSEN/AHeater Core Aluminum
1991BuickLeSabreN/AHeater Core Aluminum
1991BuickPark AvenueN/AHeater Core Aluminum
1991BuickReattaN/AHeater Core Aluminum
1991BuickRivieraN/AHeater Core Aluminum
1991CadillacAllanteN/AHeater Core Aluminum
1991CadillacCommercial ChassisN/AHeater Core Aluminum
1991CadillacDeVilleBaseN/AHeater Core Aluminum
1991CadillacDeVilleTouringN/AHeater Core Aluminum
1991CadillacDeVilleSpring EditionN/AHeater Core Aluminum
1991CadillacEldoradoN/AHeater Core Aluminum
1991CadillacFleetwoodN/AHeater Core Aluminum
1991CadillacSevilleN/AHeater Core Aluminum
1991Oldsmobile98N/AHeater Core Aluminum
1991OldsmobileDelta 88N/AHeater Core Aluminum
1991OldsmobileToronadoN/AHeater Core Aluminum
1991PontiacBonnevilleN/AHeater Core Aluminum
1990BuickLeSabreLimited3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1990BuickLeSabreBase3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1990BuickLeSabreCustom3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1990BuickReattaN/AHeater Core Aluminum
1990BuickRivieraN/AHeater Core Aluminum
1990CadillacAllanteN/AHeater Core Aluminum
1990CadillacCommercial ChassisN/AHeater Core Aluminum
1990CadillacDeVilleN/AHeater Core Aluminum
1990CadillacEldoradoN/AHeater Core Aluminum
1990CadillacFleetwoodN/AHeater Core Aluminum
1990CadillacSevilleN/AHeater Core Aluminum
1990Oldsmobile98N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1990OldsmobileDelta 88N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1990OldsmobileToronadoN/AHeater Core Aluminum
1990PontiacBonnevilleN/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989BuickLeSabreLimited3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989BuickLeSabreCustom3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989BuickLeSabreBase3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989BuickReattaN/AHeater Core Aluminum
1989BuickRivieraN/AHeater Core Aluminum
1989CadillacAllanteN/AHeater Core Aluminum
1989CadillacCommercial ChassisN/AHeater Core Aluminum
1989CadillacDeVilleN/AHeater Core Aluminum
1989CadillacEldoradoN/AHeater Core Aluminum
1989CadillacFleetwoodBaseN/AHeater Core Aluminum
1989CadillacFleetwoodd'EleganceN/AHeater Core Aluminum
1989CadillacFleetwood60 SpecialN/AHeater Core Aluminum
1989CadillacSevilleN/AHeater Core Aluminum
1989Oldsmobile98N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989OldsmobileDelta 88N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1989OldsmobileToronadoN/AHeater Core Aluminum
1989PontiacBonnevilleN/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988BuickLeSabreLimited3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988BuickLeSabreBase3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988BuickLeSabreCustom3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988BuickReattaN/AHeater Core Aluminum
1988BuickRivieraN/AHeater Core Aluminum
1988CadillacAllanteN/AHeater Core Aluminum
1988CadillacCommercial ChassisN/AHeater Core Aluminum
1988CadillacDeVilleN/AHeater Core Aluminum
1988CadillacEldoradoN/AHeater Core Aluminum
1988CadillacFleetwoodBaseSedan4 DoorFWDN/AHeater Core Aluminum
1988CadillacFleetwood60 SpecialSedan4 DoorFWDN/AHeater Core Aluminum
1988CadillacFleetwoodBaseLimousine4 DoorFWDN/AHeater Core Aluminum
1988CadillacFleetwoodd'EleganceSedan4 DoorFWDN/AHeater Core Aluminum
1988CadillacSevilleN/AHeater Core Aluminum
1988Oldsmobile98N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988OldsmobileDelta 88N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1988OldsmobileToronadoN/AHeater Core Aluminum
1988PontiacBonnevilleN/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987BuickLeSabreCustom3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987BuickLeSabreBase3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987BuickLeSabreT-Type3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987BuickLeSabreLimited3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987BuickRivieraN/AHeater Core Aluminum
1987CadillacAllanteN/AHeater Core Aluminum
1987CadillacCommercial ChassisN/AHeater Core Aluminum
1987CadillacDeVilleN/AHeater Core Aluminum
1987CadillacEldoradoN/AHeater Core Aluminum
1987CadillacFleetwoodd'EleganceSedan4 DoorFWDN/AHeater Core Aluminum
1987CadillacFleetwood75Limousine4 DoorFWDN/AHeater Core Aluminum
1987CadillacFleetwood60 SpecialSedan4 DoorFWDN/AHeater Core Aluminum
1987CadillacFleetwoodBaseSedan4 DoorFWDN/AHeater Core Aluminum
1987CadillacFleetwood75 FormalLimousine4 DoorFWDN/AHeater Core Aluminum
1987CadillacSevilleN/AHeater Core Aluminum
1987Oldsmobile98N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987OldsmobileDelta 88N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1987OldsmobileToronadoN/AHeater Core Aluminum
1987PontiacBonnevilleN/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986BuickLeSabreLimited3.0LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986BuickLeSabreLimited3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986BuickLeSabreCustom3.8LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986BuickLeSabreCustom3.0LV6N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986BuickRivieraN/AHeater Core Aluminum
1986CadillacCommercial ChassisN/AHeater Core Aluminum
1986CadillacDeVilleN/AHeater Core Aluminum
1986CadillacEldoradoN/AHeater Core Aluminum
1986CadillacFleetwood75 FormalLimousine4 DoorFWD4.1LV8N/AHeater Core Aluminum
1986CadillacFleetwoodBaseLimousine4 DoorFWD4.1LV8N/AHeater Core Aluminum
1986CadillacFleetwood75Limousine4 DoorFWD4.1LV8N/AHeater Core Aluminum
1986CadillacSevilleN/AHeater Core Aluminum
1986Oldsmobile98N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986OldsmobileDelta 88N/ANot compatible with Automatic Temperature Control system; Heater Core Aluminum
1986OldsmobileToronadoN/AHeater Core Aluminum
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
132305922279350022830017522-91784178160CA5234CA90597CA90597PRCP5165