Four Seasons 91471 HVAC Heater Core
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Four Seasons
 Heater Core

Four Seasons 91471 HVAC Heater Core

Brand Four Seasons 91471
Length 7
Thickness 2
Width 7-1/2
Core Material Copper
Adjustable Pipe Positioning No
Core Depth IN 2.000
Core Height IN 7.000
Core Width IN 7.500
Description Heater cores
Meets / Exceeds OEM? Yes
Style Copper/brass heater core
Tube 1 IN 0.625
Tube 1 MM 15.875
Tube 2 IN 0.625
Tube 2 MM 15.875
Type Heater core /copper brass
Product line Heater Core
Fits Pontiac · 6 vehicles

OE direct replacement. Meets or exceeds OEM requirements for a straightforward replacement.

Copper/brass construction. Built with a copper core for efficient heat transfer.

Heater core. A direct HVAC component for restoring cabin heat.

Cross-references AP Exhaust 2514, Four Seasons 91471 and Four Seasons 98482 for the same application. See all 18.

$52.82Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $52.82
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all HVAC Heater Core options

Four Seasons 91471 Heater Core Overview

The Four Seasons 91471 heater core is a copper/brass HVAC replacement built for heat transfer and OE-style fitment. It is compatible with 1988-1993 Pontiac LeMans models without air conditioning and is a direct-fit heater core for restoring cabin heat performance.

Four Seasons Heater Core line components are built for HVAC service work where accurate dimensions and dependable thermal performance matter. This heater core measures 7.000 inches high, 7.500 inches wide, and 2.000 inches deep, with 0.625-inch inlet/outlet tubes and a copper core material construction.

Key Features

  • Part number: 91471
  • Fits 1988-1993 Pontiac LeMans, N/A
  • Compatible with models that do not have air conditioning
  • Copper/brass heater core construction
  • Core material: copper
  • Core dimensions: 7.000 in. H x 7.500 in. W x 2.000 in. D
  • 0.625 in. tube size on both connections
  • Meets or exceeds OEM requirements

Detailed Description

The Four Seasons 91471 heater core is a replacement HVAC heater core for Pontiac LeMans applications from 1988 through 1993 that do not have air conditioning. Its copper/brass design supports efficient heat exchange, while the listed dimensions help confirm proper fit during heater box service. If you are replacing a leaking or restricted heater core in a Pontiac LeMans, this part number 91471 provides an OE-style solution for the factory heating system.

This part cross-references AP Exhaust 2514 for the same application.

What It Can Help Resolve

  • Weak or inconsistent cabin heat
  • Coolant odor inside the vehicle
  • Interior windshield fogging caused by heater core leakage
  • Coolant loss from a leaking HVAC core
  • Restricted coolant flow through the heater circuit

Installation Notes and Tips

  • Verify the vehicle is a 1988-1993 Pontiac LeMans without air conditioning before ordering.
  • Compare the existing core dimensions and tube size to the listed specifications.
  • Inspect heater hoses, clamps, and coolant condition during replacement.
  • Flush the cooling system if contamination or debris is present.
  • Bleed air from the cooling system after installation to restore proper heater performance.

Quality Assurance

This Four Seasons heater core meets or exceeds OEM requirements and is built to the listed dimensional and material specifications for service replacement use.

Related reading

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1993PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
1992PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
1991PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
1990PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
1989PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
1988PontiacLeMansN/ACompatible with models that do not have air conditioning.; Heater Core
Directly replaces or cross-references 18 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 2514Four Seasons — 91471Four Seasons — 98482903149051494471944822503852791853982437091011560045309211466034389010236H5123HT398243ZH385