Four Seasons 98781 HVAC Heater Core - Front

Four Seasons 98781 Heater Core Overview

The Four Seasons 98781 heater core is an aluminum HVAC heater core built for front-position applications on select Ford Windstar models. With OEM-level dimensions and direct-fit construction, it supports consistent cabin heat transfer in vehicles that need a replacement heater core for the heating system.

Compatible with 1995-2003 Ford Windstar, front, this heater core is sized at 7-3/8 in. long, 7-1/4 in. wide, and 1-7/8 in. thick. The Four Seasons heater core line focuses on replacement parts that match the original layout and meet or exceed OEM requirements.

Key Features

• Part number: 98781
• Brand: Four Seasons Heater Core
• Aluminum core material for HVAC heat exchange
• Core dimensions: 7.375 in. height, 7.250 in. width, 1.875 in. depth
• Tube size: 0.750 in. inlet and outlet
• Meets or exceeds OEM specifications
• Front-position heater core for select Ford Windstar applications

Detailed Description

Four Seasons 98781 is an aluminum heater core designed for the HVAC system in 1995-2003 Ford Windstar models with front placement. The compact core dimensions and 0.750 in. tube connections support a direct replacement layout for vehicles needing restored heater performance. If you are searching for a Ford Windstar heater core, Four Seasons 98781 provides an OE-style replacement option with the correct physical profile for the listed applications.

This part cross-references Dorman - HELP 90677 for the same application.

What It Helps Address

• Weak or uneven cabin heat from a restricted heater core
• Loss of heat output in the Ford Windstar HVAC system
• Coolant seepage associated with a failing heater core
• Interior fogging caused by heater core leakage
• Temperature control problems tied to heat exchanger wear

Installation Notes and Tips

Verify the vehicle year, model, and front-position HVAC layout before installation. Compare the existing core dimensions and tube size to the replacement part number 98781 to confirm proper fitment. Because heater core replacement often requires access through the HVAC case, inspect related hoses, clamps, and coolant condition during service.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements. The aluminum construction and application-specific sizing are intended to support reliable replacement performance in the listed Ford Windstar fitments.

Fitment

• Fits 1995 Ford Windstar, front
• Fits 1996-1998 Ford Windstar, front
• Fits 1999-2003 Ford Windstar, front