Lower Radiator Hose fits Ford 4500 5000 5100 5600 5900 7000 7100 7600 6600 335 445 450 535 540 545 6500 335 445 535 540 545 4500 6500 C5NN8286C

Replacement lower radiator hose for Ford's mid-range utility and construction tractors from the late 1960s through the early 1980s. Inside diameter is 1.757", matching the original Ford spec. The lower hose runs between the radiator tank and the water pump and takes more heat cycling than the upper, so it tends to harden and crack from the inside out — a soft exterior doesn't always mean the hose is still serviceable. Cracking typically shows first at the clamp ends rather than the middle. Straightforward swap with no modifications required.