Mishimoto 96-02 Toyota 4Runner 3.4L (w/ Rear Heater) Silicone Heater Hose Kit - Blue

When your 1996-2002 Toyota 4Runner's heater starts blowing cool air, or you notice coolant leaks around the firewall, it's often a sign that the original rubber heater hoses have given up. These hoses carry hot coolant from the engine to the heater core, and over time, the constant heat and pressure can cause them to crack or swell. Mishimoto developed this silicone heater hose kit specifically for your 3.4L 4Runner, including the lines for both the front and rear heater cores, to ensure you get reliable cabin heat and prevent coolant loss.

This kit is built from 4-ply silicone, reinforced with heat-resistant embedded fibers. This construction gives the hoses a strong tolerance for both high temperatures and system pressure, which is crucial for the cooling system. The silicone material is also more resistant to degradation from coolant and heat than standard rubber, meaning these hoses should last much longer. Mishimoto includes worm-gear clamps with the kit, making installation straightforward. You can also choose between black, blue, or red silicone to add a clean, custom look under the hood.