Dayco 81391 radiator coolant hose for the 1975-1976 Ford F-150 V8 5.9L or 6.4L, the 1975-1979 F-150 V8 5.0L, the 1977-1979 F-150 V8 5.8L or 6.6L, the 1980-1991 F-150 6-cylinder 4.9L and other vehicles moves coolant between the engine and the radiator.
- Catalogued for the upper and lower radiator hose positions
- Sold individually as a single hose
Quick facts
- Part: Dayco 81391 radiator coolant hose
- Fits: 1975-1976 Ford F-150 V8 5.9L or 6.4L, the 1975-1979 F-150 V8 5.0L, the 1977-1979 F-150 V8 5.8L or 6.6L, the 1980-1991 F-150 6-cylinder 4.9L and other vehicles
- Position: Upper, lower
- Condition: New
A coolant leak, a hose that feels soft, swollen or cracked, or a coolant level that keeps dropping can mean a hose has worn out. Before you replace it, rule out a leaking radiator, water pump or loose clamp, since any of them can leave coolant on the ground. Look only with the engine off and cool.
Fits
The 1968-1976 Ford F-250 V8 5.9L or 6.4L, the 1972-1974 F-250 V8 5.0L, the 1977-1978 F-250 V8 5.0L, the 1977-1979 F-250 V8 5.8L or 6.6L, the 1980-1991 F-250 6-cylinder 4.9L and the 1981-1991 Ford Bronco 6-cylinder 4.9L all fit this hose, along with many other vehicles. If your car is not named here, look up its year and engine under the "Vehicles it fits" section.
Specifications
- Position: upper, lower
- Quantity per vehicle: 1
- Condition: new
In the box
One radiator coolant hose; the catalog lists a quantity of one per vehicle.
Interchange: L52-12019
RH61 · 69 · 542 · 7188 · 1319 · C6435 · FH73 · 52819 · 2019 · 26505 · 8719 · 9M20 · KCD180 · FM65 · 7175 · 139
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Is the Dayco 81391 radiator coolant hose right for the 1981-1991 Ford Bronco 6-cylinder 4.9L?
Yes. Dayco 81391 is listed for the 1981-1991 Ford Bronco 6-cylinder 4.9L, and each Bronco of that run takes one hose.
Is this Dayco coolant hose sold as a single hose?
Yes. This listing is one hose, and the catalog gives a quantity of one for each application, so you do not get a set.
Is this hose for the upper or the lower radiator connection?
The catalog lists this hose for both the upper and lower positions.
What does a worn radiator coolant hose look like?
With the engine off and cool, look for cracks, bulges, soft spots or coolant seepage near the hose ends. Any of these can mean the hose is worn, and a shop can pressure-test the system.
Does Dayco 81391 cross-reference to RH61?
Yes. RH61 is one of the numbers that interchange with Dayco 81391, along with L52-12019 and 9M20.
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