Cooling System · critical priority
Lower Radiator Hose Replacement Cost & Pricing
Replace a deteriorating lower radiator hose that carries cooled coolant from the radiator back to the engine. Often includes the thermostat bypass hose on some vehicles.
Typical Lower Radiator Hose Replacement cost
$100–$320, with an average estimate of $180 before vehicle-specific adjustments.
What to expect
Difficulty: easy. Typical labor time: 0.5–1.5 hours.
Mechanic's tip
The lower hose contains a spring insert to prevent collapse from suction — if yours doesn't, the hose can collapse and cut off coolant flow at high engine speeds. When replacing either radiator hose, do a full coolant flush and inspect the clamps, which can corrode and fail even when the hose looks fine. Always replace the coolant when the system is open.