Radiator Coolant Hose for 1977-1979 Ford F-150 & More - Dayco 81251

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$21.99
MPN: 81251
Item Package Quantity: 1

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Dayco Radiator Coolant Hose P/N:81251
Dayco Radiator Coolant Hose P/N:81251
$21.99

Route coolant between the radiator and engine with the Dayco radiator coolant hose, part number 81251, a standard flex radiator hose from Dayco. It fits many vehicles, among them the 1977-1979 Ford F-150 V8-5.8L or V8-6.6L, the 1977-1979 Ford F-250 V8-5.8L or V8-6.6L, and the 1984-2000 Jeep Cherokee L4-2.5L. See the Buyer's Guide tab for the full list of applications.

  • Flex design: Dayco lists 81251 as a standard flex radiator hose.
  • End sizes: 1.75 in inside diameter at one end and 1.50 in inside diameter at the other.
  • Centerline length: 16.50 in.
  • Position: Cataloged for the upper, lower, and lower pipe-to-engine hose positions, depending on the application.

A radiator hose is one of the cooling system's main links, carrying engine coolant between the engine and the radiator. Signs that a hose may need replacing include coolant seeping from the hose or its ends, cracks, bulging, or a hose that feels soft or brittle. If a worn hose is behind a leak or low coolant level, this Dayco coolant hose is designed to replace it. The listed applications use one hose, and it is sold individually. Country of origin: Pakistan.

Interchange: L52-11317
L5211317 · 31646 · RH20 · 50 · 538 · C6423 · 6167 · 1216S · 25528 · FH60 · 52418 · 1317 · 7617 · 9M17 · KBC164 · FF224 · 135

This part cross-references / interchanges with the following part numbers:

31646, RH20, 50, 538, C6423, 6167, 1216S, 25528, FH60, 52418, 1317, 7617, L52-11317, 9M17, KBC164, FF224, 135, 1117023, 2910349, C9PZ-8260-U, BH616, 77-8326-9

Frequently Asked Questions

What does the Dayco 81251 radiator hose do?

It carries engine coolant between the engine and the radiator. Depending on the application, it is cataloged for the upper, lower, or lower pipe-to-engine position.

What are the dimensions of Dayco 81251?

It has a 1.75 in inside diameter at one end, a 1.50 in inside diameter at the other, and a 16.50 in centerline length.

Does this hose fit a 1984-2000 Jeep Cherokee L4-2.5L?

Yes. It is listed for the 1984-2000 Jeep Cherokee L4-2.5L, and for the 1977-1979 Ford F-150 V8-5.8L or V8-6.6L and 1977-1979 Ford F-250 V8-5.8L or V8-6.6L. Check the Buyer's Guide tab for your exact engine.

What comes in the package?

One Dayco 81251 radiator hose, sold individually. The listed applications use one hose. Follow the vehicle service information for clamps and for refilling the coolant.

What are signs a radiator hose may need replacing?

Signs include coolant leaks at the hose or its ends, cracks, bulging, or a hose that feels soft or brittle. Diagnose the cause of any coolant loss or overheating before replacing parts.