Nissens 72655 HVAC Heater Core - Front
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Nissens

Nissens 72655 HVAC Heater Core - Front

Brand Nissens 72655
Position Front
Core Material Aluminum
Tank Material Plastic
Outlet Pipe Diameter 0.90
Inlet Pipe Diameter 0.72
Construction Mechanically jointed cooling fins
Core Height 9.2100
Core Length 5.3500
Core Width 1.6500
Pipe Included Yes
Fits Cadillac · 8 vehicles

Aluminum core. Helps transfer heat efficiently for dependable cabin warmth.

Plastic tanks. Lightweight construction supports durable, leak-resistant performance.

Mechanically jointed fins. Built for efficient airflow through the heater core.

Cross-references Dorman - HELP 93622, Valeo 812126 and 1618026 for the same application. See all 11.

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Nissens 72655 Heater Core for Cadillac Catera

The Nissens 72655 HVAC heater core is built for 1997-2001 Cadillac Catera front applications. It uses an aluminum core with plastic tanks and mechanically jointed cooling fins to support efficient heat transfer in the cabin heating system.

  • Aluminum core construction with plastic tanks
  • Mechanically jointed cooling fins for durable assembly
  • Pipe included for a direct replacement setup
  • Inlet pipe diameter: 0.72
  • Outlet pipe diameter: 0.90
  • Core dimensions: 9.2100 height, 5.3500 length, 1.6500 width

Product Details

Built by Nissens, a manufacturer focused on thermal and engine efficiency components, this heater core is part of the brand’s Genuine Nissens Quality approach. The Nissens 72655 is a front HVAC heater core for Cadillac Catera models from 1997 through 2001, and it cross-references Valeo 812126 for the same application.

Common Replacement Reasons

  • Loss of cabin heat in a 1997-2001 Cadillac Catera
  • Coolant odor or moisture inside the HVAC case
  • Restricted coolant flow through the heater core
  • Temperature inconsistency from the dash vents
  • Corrosion or leakage in the original heater core assembly

Installation Notes

Verify the inlet and outlet pipe diameters before installation and compare the core dimensions to the removed unit. Confirm front-position fitment on the Cadillac Catera and inspect the HVAC case, hoses, and coolant condition during replacement. Proper system bleeding after installation helps restore normal heater performance.

Quality Assurance

Nissens develops and manufactures thermal management components to consistent quality standards for aftermarket use. Part number 72655 is engineered as a direct-fit heater core for the listed Cadillac Catera applications.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionLitersCylindersPositionNotes
2001CadillacCateraBaseAutomatic3.0LV6Front—
2001CadillacCateraSportAutomatic3.0LV6Front—
2000CadillacCateraBaseAutomatic3.0LV6Front—
2000CadillacCateraSportAutomatic3.0LV6Front—
1999CadillacCateraBaseAutomatic3.0LV6Front—
1999CadillacCateraSportAutomatic3.0LV6Front—
1998CadillacCateraBaseAutomatic3.0LV6Front—
1997CadillacCateraBaseAutomatic3.0LV6Front—
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 93622Valeo — 81212616180261618248919485191948579194858919485992005909037997290487635