Shop Ford Ranger Pickup Coolant Hoses. Order Ford Ranger Pickup Lower Radiator Hose Heater & Ford Ranger Pickup Lower Radiator Hoses In Canada. Maintaining the lower radiator hose in your Ford Ranger Pickup is vital for engine health; regular inspections for soft spots, cracks, and leaks can stave off premature failure. To extend its lifespan, ensure the coolant is flushed according to the manufacturer's schedule and that clamps are secure but not overtightened. When it's time for a replacement, opt for high-quality materials like reinforced silicone hoses, which offer superior heat resistance and durability. Correct installation is key?avoid twisting or kinking the hose to ensure optimal coolant flow. With the right care and quality parts, your Ranger's cooling system will remain robust, safeguarding your engine's performance and longevity.