Four Seasons 96105 HVAC Heater Core

Four Seasons 96105 Heater Core Overview

Four Seasons 96105 is an aluminum HVAC heater core built for direct replacement service in heating and defrost systems. With OE-level dimensions and a design that meets or exceeds OEM requirements, it supports consistent coolant-to-air heat transfer for vehicles that rely on a compact, efficient core package.

For drivers searching for a heater core for Ford F-150, Chevrolet C/K truck, or Dodge Ram applications, this Four Seasons heater core offers a straightforward replacement path when the original unit is leaking, restricted, or no longer producing steady cabin heat.

Key Features

• Four Seasons Heater Core, part number 96105
• Aluminum core construction for efficient heat exchange
• Core dimensions: 12-3/4 in. height, 7-3/8 in. width, 1-5/8 in. depth
• Tube size: 0.75 in. on both connections
• Meets or exceeds OEM specifications
• Fixed pipe positioning; adjustable pipe positioning: No
• Heater Core / Aluminum style for HVAC repair and replacement

Product Details

This Four Seasons heater core is engineered as an OE-style HVAC replacement for vehicles using a compact aluminum core layout. The aluminum construction helps transfer heat efficiently from engine coolant into the cabin air stream, supporting proper heater performance and windshield defrost output. The 96105 heater core is listed with interchange references including Gates 6948 and Spectra Premium 99340 for the same application.

When replacing a worn heater core, matching the core height, width, depth, and tube diameter is critical for proper fitment inside the HVAC case. The 96105 is sized at 12.75 inches tall, 7.375 inches wide, and 1.625 inches deep, with 19.05 mm tube connections.

Common Issues This Part Can Address

• Loss of cabin heat from a restricted or leaking heater core
• Coolant odor inside the vehicle from heater core seepage
• Fogged windows caused by weak defrost performance
• Uneven heater output from internal core blockage
• HVAC service needs on Ford F-150, Chevrolet C/K truck, and Dodge Ram platforms using this core size

Installation Notes and Tips

Before installation, verify core dimensions, tube diameter, and pipe orientation against the original unit and HVAC case opening. Flush the cooling system if contamination or scale is present, and inspect hoses, clamps, and seals during service. Because heater core replacement often requires access through the dash or HVAC housing, confirm vehicle-specific removal procedures before beginning work.

Compatible With select Ford F-150, Chevrolet C/K truck, and Dodge Ram heater core applications that match the listed dimensions and tube configuration. This part cross-references Gates 6948 and Spectra Premium 99340 for the same application.

Quality Assurance

Four Seasons lists this heater core as meeting or exceeding OEM requirements, supporting a direct-replacement standard for HVAC repair. The aluminum construction and OE-style sizing help maintain proper fit and thermal performance in the intended application.