Four Seasons 98620 HVAC Heater Core - Front

Four Seasons 98620 Heater Core Overview

The Four Seasons 98620 heater core is an aluminum HVAC heater core built to meet or exceed OEM requirements. With a compact 7-3/4 in. length, 7 in. width, and 1-7/8 in. thickness, it is sized for specific Ford, Lincoln, and Mercury applications that need reliable cabin heat and proper HVAC performance.

Four Seasons Heater Core line products focus on direct-fit replacement coverage for heating system service. This Four Seasons 98620 heater core is a practical choice for restoring heat output in vehicles such as the Ford LTD Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis.

Key Features

• Aluminum heater core construction
• Meets or exceeds OEM specifications
• Core dimensions: 7-3/4 in. length, 7 in. width, 1-7/8 in. thickness
• Core height: 7.750 in.; core width: 7.000 in.; core depth: 1.875 in.
• 0.750 in. inlet and outlet tube size
• Fixed pipe positioning; adjustable pipe positioning: No
• Direct replacement HVAC heater core for selected Ford, Lincoln, and Mercury vehicles

Detailed Description

The Four Seasons 98620 is an aluminum heater core designed for the HVAC system’s heat exchange function. It transfers engine heat into the cabin air stream, helping maintain proper interior temperature control in older Ford, Lincoln, and Mercury platforms. This part number 98620 is listed for applications including the 1980-1982 Ford LTD, 1981-1984 Lincoln Town Car, 1979-1982 Mercury Marquis, 1979-1986 Mercury Grand Marquis, and 1980 Lincoln Continental, along with later LTD Crown Victoria and Colony Park coverage.

This part cross-references ACI 399002 and Anchor 9002 for the same application. If you are replacing a leaking or restricted heater core, the Four Seasons 98620 provides the dimensions and tube sizing needed for a proper HVAC service replacement.

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 heater core
• Reduced heater performance from internal blockage or corrosion

Installation Notes and Tips

Verify core dimensions, tube size, and pipe position against the original unit before installation. This heater core is listed with fixed pipe positioning, so confirm routing and clearance in the HVAC case before assembly. Flush the cooling system and inspect hoses, clamps, and the heater control valve or related HVAC components during service to help prevent repeat contamination.

Fits 1980-1982 Ford LTD, Front; Fits 1983-1984 Ford LTD, N/A; Fits 1985-1986 Ford LTD, N/A; Fits 1987-1988 Ford LTD Crown Victoria, N/A; Fits 1989 Ford LTD Crown Victoria, N/A; Fits 1980 Lincoln Continental, Front; Fits 1981-1984 Lincoln Town Car, Front; Fits 1985-1988 Lincoln Town Car, N/A; Fits 1979-1982 Mercury Marquis, Front; Fits 1979-1986 Mercury Grand Marquis, Front; Fits 1985-1989 Mercury Grand Marquis, N/A; Fits 1987-1989 Mercury Colony Park, N/A.

Quality Assurance

This Four Seasons heater core is specified to meet or exceed OEM requirements for the listed applications. The aluminum core construction and OE-style sizing support accurate HVAC service on the covered Ford, Lincoln, and Mercury models.