Four Seasons 96124 HVAC Heater Core

Four Seasons 96124 Heater Core

The Four Seasons 96124 heater core is an aluminum HVAC heater core built for dependable cabin heat and stable coolant-to-air transfer. With a compact 1.875 in. core depth, 12.56 in. core height, and 8 in. core width, it is sized for applications that require a precise heater core replacement.

Four Seasons backs this heater core line with more than 50 years of mobile A/C experience, and the brand states its products are engineered and tested for long service life. If you are replacing a leaking or restricted heater core in a Honda Civic or similar vehicle application, this part number 96124 is a direct replacement option to verify against your original unit.

Key Features

• Aluminum heater core construction for HVAC heat exchange
• Core dimensions: 1.875 in. depth, 12.56 in. height, 8 in. width
• Tube size: 0.625 in. / 15.88 mm on both connections
• Four Seasons heater core line for HVAC repair and replacement
• Part number 96124 for catalog and cross-reference lookup

Detailed Product Overview

This Four Seasons heater core is designed for vehicles that use an aluminum heater core with the listed dimensions and tube sizes. It is a practical replacement for restoring heater performance when the original core is clogged, corroded, or leaking. For buyers searching for a Honda Civic heater core replacement, or a Four Seasons 96124 heater core for HVAC service, matching the physical specifications is essential for proper fitment.

This part cross-references Remy 99419 for the same application.

What It Helps Fix

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Coolant seepage from the HVAC case
• Restricted coolant flow through the heater circuit
• Heat loss caused by a corroded or plugged heater core

Installation Notes and Tips

Verify core depth, height, width, and tube diameter against the original heater core before installation. Confirm hose routing, tube orientation, and HVAC case clearance during removal and reassembly. Because heater core replacement often requires access through the dash or HVAC housing, inspect related seals, hoses, and coolant condition at the same time.

Quality Assurance

Four Seasons states that its HVAC products are engineered and tested for years of trouble-free operation. The brand also notes more than 50 years of mobile A/C experience behind this heater core line, supporting a repair-focused replacement approach for vehicles such as Honda Civic applications.