Four Seasons 96140 HVAC Heater Core

Four Seasons 96140 Heater Core Overview

The Four Seasons 96140 heater core is an aluminum HVAC heater core built for dependable cabin heat and stable coolant-to-air transfer. It is a direct replacement-style component for service work on vehicles such as Honda Civic and Toyota Corolla applications where the heater core is part of the climate control system.

Four Seasons backs the Heater Core line with more than 50 years of mobile A/C experience, and this part is engineered and tested for long-term, trouble-free operation. The 96140 heater core uses an aluminum construction with a 7.75 in height, 8 in width, and 2.5 in depth for a compact fit in the HVAC case.

Key Features

• Aluminum heater core construction
• Core dimensions: 7.75 in height, 8 in width, 2.5 in depth
• Tube size: 0.625 in / 15.88 mm on both connections
• HVAC heater core replacement for heating system service
• Four Seasons Heater Core product line
• Part number 96140 for catalog and cross-reference lookup

Detailed Product Description

The Four Seasons Heater Core line focuses on replacement HVAC components built to restore heat transfer inside the vehicle cabin. This aluminum heater core is designed for vehicles that need a service replacement for a leaking, restricted, or inefficient core. The 96140 part number is also referenced in aftermarket catalogs for related applications, including Honda Civic and Toyota Corolla searches, making it a useful lookup point when matching the correct HVAC heater core.

This part cross-references Gates 6896 for the same application.

Common Problems This Part Can Address

• Weak or uneven cabin heat
• Coolant odor inside the passenger compartment
• Fogging or film on the inside of the windshield from heater core leakage
• Restricted coolant flow through the HVAC heater circuit
• Visible coolant seepage from the heater core area

Installation Notes and Tips

Verify core dimensions, tube diameter, and HVAC case layout before installation. Match the 0.625 in tube connections and confirm the replacement heater core aligns with the vehicle’s heater hoses and case opening. On Honda Civic and Toyota Corolla service jobs, inspect the cooling system, heater hoses, and clamps at the same time to reduce repeat labor.

Quality Assurance

Four Seasons engineers and tests its HVAC components for dependable operation, drawing on more than 50 years of mobile air conditioning experience. The 96140 heater core is part of the Four Seasons Heater Core line, built for service replacement work where consistent heat transfer and fitment accuracy matter.