Dayco Radiator Coolant Hose P/N:71705
Dayco 71591 lower radiator coolant hose for the 2005-2009 Buick LaCrosse V6 3.8L and other vehicles carries coolant between the radiator and the engine.
With the engine off and cool, look the hose over for cracks, swelling, soft spots or coolant seepage, any of which can mean it is due for replacement. Before you replace it, rule out a leak at the radiator, a clamp or the water pump, since a new hose will not help if one of those is the source.
The 2005-2009 Buick LaCrosse V6 3.8L takes one, and this Dayco radiator coolant hose also fits the 2004-2005 Chevrolet Impala V6 3.8L and the 2005-2009 Buick Allure V6 3.8L, among many other vehicles. If your car is not one of these, look up its year, model and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
Interchange: 22252M · 21885 · 61610 · 482 · 8575
This part cross-references / interchanges with the following part numbers:
Does the Dayco 71591 lower radiator coolant hose fit a 2004-2005 Chevrolet Impala V6 3.8L?
Yes. Dayco 71591 is listed for the 2004-2005 Chevrolet Impala V6 3.8L, and that vehicle takes one hose.
Is this Dayco coolant hose made from EPDM?
Yes. The material listed for this lower radiator hose is EPDM, and it is a dual I.D. hose.
What are the two sizes on this dual I.D. lower radiator hose?
The two sizes are 1 1/4 in and 1 1/2 in, and the hose has a trunk height of 13 in.
Does Dayco 71591 replace the 22252M radiator hose?
Yes. 22252M is one of the other numbers that Dayco 71591 replaces.
What should I look for on a worn lower radiator hose?
With the engine off and cool, check for cracks, bulges, mushy spots and dampness or crusty residue near the ends. A shop can pressure-test the cooling system if you cannot find a leak.
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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.