Dayco 71766 Radiator Coolant Hose - Upper or Upper - Pipe To Radiator
OE Quality 60-Day Returns
Dayco
 Curved Radiator Hose

Dayco 71766 Radiator Coolant Hose - Upper or Upper - Pipe To Radiator

Brand Dayco 71766
Position Upper - Pipe To Radiator
Color Black
End 1 Inside Diameter 1 1/4
End 2 Inside Diameter 1 3/8
Hose Type Dual I.D. Hose
Material EPDM
SAE Specification SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height 14
Product line Curved Radiator Hose
Fits Mazda, Mitsubishi, Chrysler, and Dodge · 29 vehicles

Curved radiator hose. Dual I.D. design helps simplify coolant routing.

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

SAE J20R4 Class D-1. Meets recognized coolant hose performance standards.

Cross-references ACDelco 20452S, ACDelco 22672M and ACDelco 24177L for the same application. See all 23.

$27.77Free 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 $27.77
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

Dayco Curved Radiator Hose 71766

Dayco 71766 is a curved radiator coolant hose built for upper cooling-system routing where a formed hose is required. Made from EPDM rubber and finished in black, it uses a dual I.D. design with 1 1/4 in. and 1 3/8 in. inside diameters to match the listed applications.

This Dayco Curved Radiator Hose line is intended for direct replacement service in vehicles that need a shaped upper hose path between the pipe and radiator. It is built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for coolant-hose service.

Key Features

  • Part number: 71766
  • EPDM construction for coolant-hose durability
  • Dual I.D. hose with 1 1/4 in. and 1 3/8 in. ends
  • Curved radiator hose profile for upper cooling-system routing
  • Black finish
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • No heat shield and no protective sleeve

Fitment Details

  • Fits 2008-2011 Mazda RX-8, Upper - Pipe To Radiator
  • Fits 2004-2007 Mazda RX-8, Upper
  • Fits 2003-2006 Mitsubishi Lancer, Upper
  • Fits 1995-2000 Chrysler Cirrus, Upper
  • Fits 1996-2000 Chrysler Sebring, Upper
  • Fits 1995-2000 Dodge Stratus, Upper

What It Helps Address

  • Cracked or split upper radiator hose material
  • Coolant leaks at the hose body or formed bends
  • Softening, swelling, or collapse in an aging coolant hose
  • Incorrect hose shape for upper radiator routing
  • Service replacement for Mazda RX-8, Mitsubishi Lancer, Chrysler Cirrus, Chrysler Sebring, and Dodge Stratus cooling systems

Installation Notes

Verify end inside diameters, hose routing, and position before installation. This hose is listed for upper applications, including upper pipe-to-radiator routing on 2008-2011 Mazda RX-8 and upper radiator positions on the other listed vehicles. Inspect clamps, mating tubes, and coolant condition during service.

Quality Assurance

Dayco manufactures this hose to published SAE coolant-hose standards for material and performance requirements. Part number 71766 is also cross-referenced by Gates 21508 for the same application.

Related reading

This part fits 29 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2011MazdaRX-8——Upper - Pipe To RadiatorCurved Radiator Hose
2010MazdaRX-8——Upper - Pipe To RadiatorCurved Radiator Hose
2009MazdaRX-8——Upper - Pipe To RadiatorCurved Radiator Hose
2008MazdaRX-8——Upper - Pipe To RadiatorCurved Radiator Hose
2007MazdaRX-8——UpperCurved Radiator Hose
2006MazdaRX-8——UpperCurved Radiator Hose
2006MitsubishiLancer2.0LL4UpperCurved Radiator Hose
2005MazdaRX-8——UpperCurved Radiator Hose
2005MitsubishiLancer2.0LL4UpperCurved Radiator Hose
2004MazdaRX-8——UpperCurved Radiator Hose
2004MitsubishiLancer2.0LL4UpperCurved Radiator Hose
2003MitsubishiLancer2.0LL4UpperCurved Radiator Hose
2000ChryslerCirrus2.5LV6UpperCurved Radiator Hose
2000ChryslerSebring——UpperCurved Radiator Hose
2000DodgeStratus2.5LV6UpperCurved Radiator Hose
1999ChryslerCirrus2.5LV6UpperCurved Radiator Hose
1999ChryslerSebring2.5LV6UpperCurved Radiator Hose
1999DodgeStratus2.5LV6UpperCurved Radiator Hose
1998ChryslerCirrus2.5LV6UpperCurved Radiator Hose
1998ChryslerSebring2.5LV6UpperCurved Radiator Hose
1998DodgeStratus2.5LV6UpperCurved Radiator Hose
1997ChryslerCirrus2.5LV6UpperCurved Radiator Hose
1997ChryslerSebring2.5LV6UpperCurved Radiator Hose
1997DodgeStratus2.5LV6UpperCurved Radiator Hose
1996ChryslerCirrus2.5LV6UpperCurved Radiator Hose
1996ChryslerSebring2.5LV6UpperCurved Radiator Hose
1996DodgeStratus2.5LV6UpperCurved Radiator Hose
1995ChryslerCirrus2.5LV6UpperCurved Radiator Hose
1995DodgeStratus2.5LV6UpperCurved Radiator Hose
Directly replaces or cross-references 23 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 20452SACDelco — 22672MACDelco — 24177LCARQUEST — 21508CARQUEST — 23598Chrysler — 4546910Chrysler — 4592158Duralast — C71766Freshstart — 1076Freshstart — 62716Gates — 21508Gates — 23059Gates — 23598General Motors — 96553247Goodyear — 62128Goodyear — 62710Goodyear — 62716Mazda — N3H1-15-186AMazda — N3H1-15-186BMazda — N3H1-15-186CNAPA — 8223NAPA — 9724NAPA — 16310