Carry engine coolant through the heater circuit with this Dayco heater hose, part number 87749, a molded replacement cataloged for the heater-to-pipe and pipe-to-engine position. It fits many vehicles, among them the 1995-2004 Toyota Tacoma with the V6-3.4L, the 1996-2002 Toyota 4Runner with the V6-3.4L and the 1994-1997 Honda Passport with the V6-3.2L. See the Buyer's Guide tab for the full list.
A heater hose carries hot coolant between the engine and the heater core, and the heating system uses that coolant to warm the cabin. The listed applications use one hose in this position, and this listing is for one hose.
A heater hose may need replacing if you see coolant seeping at the ends, cracks, swelling, a soft or spongy feel, a coolant level that keeps dropping, or weak cabin heat. Diagnose the cooling system first. If this hose is the source of the problem, Dayco 87749 replaces it.
Country of origin: Mexico.
Interchange: 1301S · 16111M · 18963 · 19130 · 64283 · 10963 · 11130
This part cross-references / interchanges with the following part numbers:
Is this the right 4Runner heater hose for my 1996-2002 Toyota 4Runner 3.4L?
It is listed for the 1996-2002 Toyota 4Runner with the V6-3.4L engine, in the heater-to-pipe and pipe-to-engine position. Check the Buyer's Guide tab to confirm your vehicle.
Is this a Dayco 3/4 heater hose?
One end has a 0.75 in (3/4 in) inside diameter and the other end measures 0.63 in. The hose has an 8 in centerline length.
What does an hvac heater hose do?
It carries engine coolant between the engine and the heater core, which the heating system uses to warm the cabin. This one is cataloged for the heater-to-pipe and pipe-to-engine position.
What are the signs a heater hose may need replacing?
Signs include coolant leaks at the ends, cracks, swelling, a soft or spongy feel, a falling coolant level or weak cabin heat. Diagnose the cooling system before replacing parts.
How many hoses come in the package?
This listing is for one Dayco 87749 molded heater hose. The listed applications use one hose in this position.
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.
