Dayco 71655 Radiator Coolant Hose - Lower
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Dayco
 Curved Radiator Hose

Dayco 71655 Radiator Coolant Hose - Lower

Brand Dayco 71655
Position Lower
Color Black
End 1 Inside Diameter 1 15/32
End 2 Inside Diameter 1 15/32
Hose Type Single I.D. Hose
Material EPDM
SAE Specification SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height 12
Product line Curved Radiator Hose
Fits Ford and Mazda · 5 vehicles

Curved hose design. Helps route coolant smoothly through the cooling system.

EPDM construction. Built from durable rubber for dependable coolant transfer.

Single I.D. hose. Uniform inside diameter supports consistent flow.

Cross-references ACDelco 22323M, CARQUEST 22241 and Duralast D71655 for the same application. See all 14.

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Not what you need? See all Radiator Coolant Hose options

Dayco 71655 Curved Radiator Hose

Dayco 71655 is a curved radiator coolant hose built for lower cooling-system routing on select Ford Ranger and Mazda B3000 applications. Made from EPDM rubber and finished in black, it provides a direct-fit replacement for vehicles that need a 1 15/32 in. inside diameter at both ends.

The Dayco Curved Radiator Hose line focuses on OE-style cooling hose replacement with application-specific bends and SAE-rated construction. This hose follows the original routing used in the lower radiator position, helping maintain proper coolant flow and fitment on the listed vehicles.

Key Features

  • Part number: 71655
  • Curved radiator coolant hose for lower hose routing
  • EPDM construction for cooling-system service
  • Black finish
  • Single I.D. hose design
  • 1 15/32 in. inside diameter at both ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Fits 1991-1994 Ford Ranger, lower
  • Fits 1994 Mazda B3000, lower

Detailed Description

Dayco 71655 is a molded-style lower radiator hose for cooling-system service on 1991-1994 Ford Ranger and 1994 Mazda B3000 applications. Its EPDM rubber construction is suited for coolant exposure, while the curved profile supports the factory hose path in the lower position. If you are replacing a worn lower radiator hose on a Ford Ranger or Mazda B3000, this part number 71655 matches the listed OE-style fitment and dimensions.

This part cross-references Gates 22241 and Motorcraft KM1936 for the same application.

Common Problems This Hose Can Address

  • Coolant leaks from a cracked or aged lower radiator hose
  • Softening, swelling, or collapse of the hose under heat and pressure
  • Poor fitment after an incorrect hose replacement
  • Restricted coolant flow caused by hose deterioration
  • Cooling-system service on a Ford Ranger or Mazda B3000 lower hose location

Installation Notes and Tips

Verify the lower hose routing and end diameters before installation. Inspect hose clamps, radiator necks, and engine-side connections for corrosion or damage before fitting the new hose. Confirm that the hose follows the original curved path without twisting, and refill the cooling system with the correct coolant mixture after installation.

Quality Assurance

Dayco manufactures this radiator coolant hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system service. The EPDM material and application-specific shape support consistent replacement fitment for the listed Ford Ranger and Mazda B3000 applications.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
1994FordRangerAutomatic3.0LV6LowerCurved Radiator Hose
1994MazdaB3000Automatic——LowerCurved Radiator Hose
1993FordRangerAutomatic3.0LV6LowerCurved Radiator Hose
1992FordRangerAutomatic3.0LV6LowerCurved Radiator Hose
1991FordRangerAutomatic3.0LV6LowerCurved Radiator Hose
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 22323MCARQUEST — 22241Duralast — D71655Ford — F3TZ-8286-AFord — F17A-8B273-JBFord — F17Z-8286-AFord — F27A-8B273-KDFord — F37A-8B273-FAFreshstart — 925Gates — 22241Goodyear — 61681Motorcraft — KM1936Motorcraft — KM2405NAPA — 8881