Dayco HVAC Heater Hose P/N:88423
Dayco 87861 right heater hose for the 2012-2013 Mazda 3 Sport 4-cylinder 2.5L and other vehicles carries engine coolant to the heater core that warms the cabin. This Dayco heater hose connects at the right heater inlet.
Coolant drips at the hose, a cracked or swollen hose, or weak cabin heat can all point to a worn heater hose. Before you replace this hose, rule out a loose clamp, a weeping heater core or a leak elsewhere in the cooling system, because those can also leave you with coolant loss or poor cabin heat.
The 2010-2011 Mazda 3 4-cylinder 2.0L, the 2010-2013 Mazda 3 4-cylinder 2.5L and the 2011 Chevrolet Aveo all fit this hose, and so do many other vehicles.
Interchange: 16280M · 19110 · 64115 · 11110
This part cross-references / interchanges with the following part numbers:
Is Dayco 87861 the Mazda 3 heater hose for a 2010-2011 Mazda 3 4-cylinder 2.0L?
Yes. Dayco 87861 fits the 2010-2011 Mazda 3 4-cylinder 2.0L and the 2010-2013 Mazda 3 4-cylinder 2.5L. For any other car, look up its exact year and engine in the "Vehicles it fits" section.
Which side does this HVAC heater hose go on?
This Dayco 87861 is the right heater inlet hose, and the listing is one hose.
Can I use Dayco 87861 in place of a hose numbered 19110?
Yes. 19110 is one of the cross-reference numbers Dayco 87861 replaces; the others are on the Interchange line.
How can I tell if this right heater inlet hose is worn?
With the engine off and cool, look along the hose and at both ends for cracks, bulges, rubbing or damp coolant residue. A shop can pressure-test the cooling system if you are unsure.
Is Dayco 87861 a match for a 2011 Chevrolet Aveo?
Yes. Dayco 87861 fits the 2011 Chevrolet Aveo, with one hose at the right heater inlet.
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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.