Dayco 87972 lower heater hose for the 2011-2018 Ram 1500 V8 5.7L and other vehicles carries engine coolant to and from the heater. Also called an HVAC heater hose, this Dayco heater hose is part of the loop that feeds hot coolant to the heater.
Weak cabin heat, a sweet coolant smell or coolant drips can mean a heater hose is leaking, but other cooling-system parts can produce those symptoms too. Before replacing the hose, look along it with the engine off and cool for cracks, soft or swollen spots and wet residue at the ends. A shop can pressure-test the system.
The vehicles it fits include the 2011-2018 Ram 1500 V8 5.7L, the 2011-2018 Ram 2500 V8 5.7L and the 2009-2010 Dodge Ram 1500 V8 5.7L, and each takes one hose. If your truck is not named here, find its year and engine on the Buyer's Guide tab.
Interchange: 18405L · 19569 · 11569
This part cross-references / interchanges with the following part numbers:
Is Dayco 87972 the right heater hose for a 2009-2010 Dodge Ram 1500 V8 5.7L?
Yes, Dayco 87972 is listed for the 2009-2010 Dodge Ram 1500 V8 5.7L, and that truck takes one. For other years or engines, look up your truck on the Buyer's Guide tab.
Is this a lower or an upper heater hose?
This is the lower heater hose, made for the heater outlet position. The listing is a single hose for that spot.
Can I use Dayco 87972 in place of number 19569?
Yes, 19569 is one of the numbers this hose replaces, along with 18405L and 11569.
How can I tell if my lower heater hose is leaking?
With the engine off and cool, look for wet coolant residue, cracks or soft, swollen spots on the hose. Low coolant or a sweet smell can also be signs; a shop can pressure-test the system.
Is this heater hose sold as a single piece?
Yes, this listing is one lower heater hose, and each vehicle it fits takes one.
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.
