Four Seasons 96120 HVAC Heater Core

Four Seasons 96120 Heater Core Overview

The Four Seasons 96120 heater core is an aluminum HVAC heater core built for dependable cabin heat and stable coolant-to-air transfer. With a 10.5 in. core height, 10 in. core width, and 2.5 in. core depth, it is sized for applications that require a compact aluminum heater core with 0.75 in. inlet and outlet tubes.

Four Seasons heater core products are engineered and tested for long service life, drawing on more than 50 years of mobile A/C experience. If you are replacing a leaking or restricted heater core in a Honda Civic or similar vehicle application, this part number 96120 is a direct replacement option to restore heater performance.

Key Features

• Aluminum heater core construction for efficient heat transfer
• Core dimensions: 10.5 in. height, 10 in. width, 2.5 in. depth
• 0.75 in. inlet and outlet tube size
• HVAC heater core replacement for passenger cabin heat
• Four Seasons heater core part number 96120

Detailed Product Description

The Four Seasons 96120 heater core is a replacement HVAC core designed to circulate hot engine coolant through the heater box so the blower can deliver warm air into the cabin. Its aluminum construction supports efficient thermal transfer and corrosion-resistant service in the heating system. This heater core is a practical choice when you need a replacement heater core for Honda Civic heating repair or another vehicle that matches the listed dimensions and tube sizes.

This part cross-references Spectra Premium 99398 and Standard Ignition 6915 for the same application. When comparing heater core replacement parts, verify core height, width, depth, and tube diameter against the original unit before installation.

Common Problems This Part Can Help Solve

• No heat or weak heat output from the vents
• Coolant odor inside the cabin
• Fogging or film on the windshield caused by heater core leakage
• Coolant loss from a leaking HVAC heater core
• Restricted coolant flow through the heater circuit

Installation Notes and Tips

Confirm the original heater core dimensions and tube sizes before ordering. Drain the cooling system as required, inspect heater hoses and clamps, and flush the heater circuit if contamination or scale is present. After installation, refill the cooling system, bleed air from the system, and check for leaks and proper heater output.

Quality Assurance

Four Seasons backs this heater core with products engineered and tested for years of trouble-free operation. The brand’s long history in mobile air conditioning and heating components supports consistent replacement quality for HVAC service work.