Cabin Heater Core Assembly for Toyota 4x4 🔥❄️

This premium HVAC heater radiator keeps your cabin warm and windows clear in cold or wet weather. Designed for rugged use, it restores factory heat output and stable defrost performance while protecting the engine’s cooling system balance. Built to OE geometry for a precise fit and efficient heat exchange.

Why this part is needed 🔧

Over time, coolant minerals, corrosion, or seal fatigue reduce flow through the core. That means weak cabin heat, foggy glass, and extra strain on the blower and cooling system. Replacing the unit ensures reliable winter comfort and safe visibility.

How it works 🛠️

Hot engine coolant circulates through fine tubes and fins inside the core. The blower pushes air across those fins, picking up heat and sending it through the vents. Blend doors and temperature controls regulate how much warm air reaches the cabin.

What happens if it fails ⚠️

Symptoms include sweet coolant smell, oily film on glass, damp carpet, visible leaks, low heat, or overheating from coolant loss. Ignoring it risks heater box damage, fogged windows, and potential engine issues due to low coolant.

Tech notes 💡

Use the correct coolant mix, flush the system, replace aged hoses and clamps, and bleed air after installation for top performance and longevity.

• Land Cruiser