Four Seasons 96109 HVAC Heater Core

Four Seasons 96109 Heater Core Overview

The Four Seasons 96109 heater core is an aluminum HVAC heater core built to meet or exceed OEM requirements. With compact dimensions and 0.75 in. inlet/outlet tubes, it is a direct-fit style replacement for restoring cabin heat and defrost performance in supported applications.

This Four Seasons heater core is part of the Heater Core product line, focused on replacement HVAC core components for passenger vehicles and light-duty applications. If you are searching for a heater core for Ford truck or van HVAC repair, the 96109 offers the size, material, and tube layout needed for a proper service replacement.

Key Features

• Part number: 96109
• Aluminum core construction for efficient heat transfer
• Core dimensions: 7-9/16 in. length, 7-3/8 in. width, 1-1/16 in. thickness
• Core height: 7.5625 in.; core depth: 1.0625 in.
• 0.75 in. tube connections on both inlet and outlet
• Meets or exceeds OEM specifications
• Adjustable pipe positioning: No

Detailed Description

The Four Seasons 96109 heater core is an aluminum heater core designed for HVAC systems that need dependable cabin heat output and stable coolant flow through the core. Its compact footprint and fixed pipe positioning support accurate replacement in vehicles that require this exact size and tube configuration. For buyers comparing heater core 96109 options, this unit is built as an OE-style service part for repair work where fit and thermal performance matter.

Cross-reference part numbers for this application include Spectra Premium 99311 and BBB Industries 6947. This part is also commonly searched as a heater core for Ford truck and van HVAC service, including Ford F-150 and Ford E-Series repair searches where the correct core dimensions are critical.

Common Problems This Part Can Help Resolve

• Weak or no heat from the vents
• Coolant odor inside the cabin
• Fogging or poor defrost performance caused by heater core issues
• Coolant seepage from a leaking HVAC core
• Restricted coolant flow through a damaged or clogged heater core

Installation Notes and Tips

Verify core dimensions, tube diameter, and pipe orientation before installation. Because adjustable pipe positioning is not included, the replacement must match the original HVAC layout. Always inspect hoses, clamps, and the cooling system for contamination or leaks before installing the new heater core, and flush the system if debris or old coolant is present.

For fitment-based searches, confirm the vehicle’s HVAC case design and compare the original core to the Four Seasons 96109 before assembly. This is especially important on Ford truck and van heater core replacement jobs where access and case configuration can vary by application.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements, and the aluminum construction supports consistent heat transfer in service. The 96109 is built for replacement use in HVAC repair where dimensional accuracy and material quality are essential.