Dayco Radiator Coolant Hose P/N:71977
Dayco 72981 lower radiator coolant hose for the 2018-2026 Honda Odyssey and other vehicles carries engine coolant through the cooling system. This Dayco radiator coolant hose is for the lower position: engine to pipe, connector to engine and tee to engine.
Coolant seepage at the hose ends, cracks, or a hose wall that feels swollen or soft when the engine is cool can mean this hose is worn, though a faulty radiator cap or a leaking water pump can be behind a coolant loss as well.
The 2018-2026 Honda Odyssey, the 2016-2022 Honda Pilot and the 2019-2026 Honda Passport take this hose, along with other Honda and Acura models, and each takes one. Open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
One radiator coolant hose. A protective sleeve and a heat shield are not included.
Interchange: 24774L · 24785 · 17443
This part cross-references / interchanges with the following part numbers:
Is the Dayco coolant hose 72981 the right one for the 2016-2022 Honda Pilot?
Yes, Dayco 72981 is listed for the 2016-2022 Honda Pilot, and the Pilot takes one. Open the "Vehicles it fits" section to check another model or engine.
Does Dayco 72981 come with a protective sleeve or heat shield?
No. This listing is one radiator coolant hose, and neither a protective sleeve nor a heat shield is included.
What outside diameter are the ends of this radiator coolant hose?
Dayco 72981 measures 1 17/32 in outside diameter at both ends, with a trunk height of 12 1/2 in.
What should I look for on a worn lower radiator coolant hose?
With the engine off and cool, look for cracks, a swollen or soft hose wall and coolant residue at the ends. A coolant leak or overheating should be looked at promptly by a shop.
Which SAE specifications does this radiator coolant hose meet?
Dayco 72981 is built to SAE J20R4 Class D-1 and SAE J1684 Type EC.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.