Four Seasons 90743 HVAC Heater Core

Four Seasons 90743 Heater Core Overview

The Four Seasons 90743 heater core is an aluminum HVAC heater core built for direct replacement service in select Ford, Lincoln, and Mercury vehicles. It is sized at 7-5/8 in. long, 5-7/8 in. wide, and 1-7/8 in. thick, with 5/8 in. inlet and outlet tubes for a precise fit in the heater box.

Compatible with 1990-1995 Ford Taurus, 1994-1995 Ford Sable, 1990-1995 Mercury Sable, and 1990-1994 Lincoln Continental applications, this Four Seasons Heater Core line part is made to meet or exceed OEM requirements.

Key Features

• Four Seasons part number 90743
• Aluminum heater core construction
• Core dimensions: 7-5/8 in. x 5-7/8 in. x 1-7/8 in.
• 5/8 in. tube connections
• Meets or exceeds OEM specifications
• Direct-fit HVAC heater core for select Ford, Lincoln, and Mercury models

Product Details

The Four Seasons Heater Core line focuses on replacement HVAC core components built for accurate fitment and dependable heat transfer. Part number 90743 uses an aluminum core design to match the original-style heater core layout found in the listed vehicles. This makes it a practical choice for restoring cabin heat in a 1990-1995 Ford Taurus, 1994-1995 Ford Sable, 1990-1995 Mercury Sable, or 1990-1994 Lincoln Continental.

This part cross-references APDI 9010229 for the same application.

What This Heater Core Helps Address

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Fogging or film on the inside of the windshield caused by heater core leakage
• Visible coolant seepage from the HVAC case
• Restricted heat output from a clogged or damaged heater core

Installation Notes and Tips

Verify tube orientation and heater box dimensions before installation. This unit does not have adjustable pipe positioning, so the inlet and outlet alignment should be checked against the original part before assembly. One fitment note applies to 1989 Lincoln Continental models with swivel design pipes, which must be rotated to match the original orientation. Confirm the vehicle’s build date for 1989-1995 Ford Taurus, Ford Sable, Mercury Sable, and Lincoln Continental applications before ordering.

Quality Assurance

This heater core is listed as meeting or exceeding OEM requirements, supporting a replacement choice that follows original equipment specifications for the covered Ford Taurus, Ford Sable, Mercury Sable, and Lincoln Continental applications.