Dayco 71937 Radiator Coolant Hose - Upper - Tee To Engine
OE Quality 60-Day Returns
Dayco
 Curved Radiator Hose

Dayco 71937 Radiator Coolant Hose - Upper - Tee To Engine

Brand Dayco 71937
Position Upper - Tee To Engine
Color Black
End 1 Inside Diameter 1 7/32
End 1 Outside Diameter 19/32
End 2 Inside Diameter 1 7/32
End 2 Outside Diameter 19/32
End 3 Inside Diameter 5/16
End 4 Inside Diameter 1 1/2
Hose Type Branched Hose
Material EPDM
SAE Specification SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height 10
Product line Curved Radiator Hose
Fits Ford and Mercury · 10 vehicles

Curved radiator hose. Branched design routes coolant with a precise, OE-style fit.

EPDM construction. Resists heat and coolant exposure for dependable service.

SAE J20R4 Class D-1. Built to meet recognized coolant hose performance standards.

Cross-references ACDelco 20379S, CARQUEST 22337 and Duralast C71937 for the same application. See all 8.

$65.47Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $65.47
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Radiator Coolant Hose options

Curved Radiator Hose for Ford Taurus and Mercury Sable

Dayco 71937 is a branched radiator coolant hose built for upper tee-to-engine routing in select Ford and Mercury cooling systems. It uses EPDM construction and follows SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for coolant hose applications.

Compatible With 1996-2000 Ford Taurus, upper - tee to engine, and 1996-2000 Mercury Sable, upper - tee to engine. This Dayco curved radiator hose is shaped for the routing used in these vehicles and is identified by part number 71937.

Key Features

  • EPDM rubber construction for coolant hose service
  • Black finish for a factory-style appearance
  • Branched hose design for tee-to-engine routing
  • End 1 inside diameter: 1 7/32 in.
  • End 2 inside diameter: 1 7/32 in.
  • End 3 inside diameter: 5/16 in.
  • End 4 inside diameter: 1 1/2 in.
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC standards

Product Details

Dayco Curved Radiator Hose 71937 is made for cooling-system service where a formed, branched hose is required. The EPDM material is commonly used in radiator and heater hose applications because it handles coolant exposure and underhood temperatures. With its curved profile and multiple hose ends, this part supports the upper radiator hose routing used on 1996-2000 Ford Taurus and 1996-2000 Mercury Sable models.

This part cross-references Ford F6DZ-8584-BD for the same application. Dayco 71937 also aligns with interchange references such as Gates 22337.

Common Problems This Hose Can Address

  • Coolant leaks from a cracked or aged upper radiator hose
  • Softening, swelling, or collapse of an original hose
  • Improper hose routing after cooling-system service
  • Loss of coolant flow caused by a damaged branched hose
  • Visible wear at hose ends or tee connections

Installation Notes and Tips

Verify the hose routing against the original layout before installation. Inspect the mating necks, clamps, and nearby fittings for corrosion, residue, or damage that could affect sealing. Confirm the hose end diameters and branch orientation match the vehicle’s cooling-system layout before final assembly.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose applications. The part number is 71937.

Related reading

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2000FordTaurus3.0LV6Upper - Tee To EngineCurved Radiator Hose
2000MercurySable3.0LV6Upper - Tee To EngineCurved Radiator Hose
1999FordTaurus3.0LV6Upper - Tee To EngineCurved Radiator Hose
1999MercurySable3.0LV6Upper - Tee To EngineCurved Radiator Hose
1998FordTaurus3.0LV6Upper - Tee To EngineCurved Radiator Hose
1998MercurySable3.0LV6Upper - Tee To EngineCurved Radiator Hose
1997FordTaurus3.0LV6Upper - Tee To EngineCurved Radiator Hose
1997MercurySable3.0LV6Upper - Tee To EngineCurved Radiator Hose
1996FordTaurus3.0LV6Upper - Tee To EngineCurved Radiator Hose
1996MercurySable3.0LV6Upper - Tee To EngineCurved Radiator Hose
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 20379SCARQUEST — 22337Duralast — C71937Ford — F6DZ-8584-BDFreshstart — 1264Gates — 22337Goodyear — 62292NAPA — 8970