Homeβ€Ί Belts and Cooling > Hoses and Pipesβ€Ί Gates 21742 Radiator Coolant Hose
Part #: 21742

Gates 21742 Radiator Coolant Hose

Molded Coolant Hose, Heater Outlet
89 vehicles fit this part
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OE Direct Replacement β€” Bolt-on fit, no modifications needed
Molded Coolant Hose, Heater Outlet
Fitment: Toyota, Chevrolet, GMC, Lexus, Honda, Isuzu, Acura, Ford, Mercury, Buick, Oldsmobile, and Pontiac, Tacoma, Colorado, Canyon, GS450h, Pilot, i-290, MDX, LS400, Taurus, Sable, Century, Celebrity, Cougar, Marquis, Cutlass Ciera, and 6000
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Overview of Gates Molded Coolant Hose 21742

The Gates Molded Coolant Hose 21742 is engineered for reliable cooling system performance in various vehicles including Acura, Chevrolet, Ford, Honda, Lexus, and Toyota models. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for efficient engine cooling.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and secure installation
  • Centerline length of 122 mm (4.8 inches) for accurate replacement
  • Inside diameter of 16 mm (0.62 inches) on both ends for consistent coolant flow
  • Compatible with multiple makes and models including Acura MDX, Chevrolet Colorado, Ford Taurus, Honda Pilot, Lexus GS450h, and Toyota Tacoma

Details on Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, reducing installation time and improving fitment accuracy. This product line emphasizes durability and resistance to coolant system chemicals, making it suitable for a wide range of passenger vehicles and light trucks. The 21742 part number is part of this line, offering a molded radiator coolant hose solution that meets OEM standards.

Technical Specifications and Features

The Gates 21742 radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant fluids. Both ends of the hose have an inside diameter of 16 mm (0.62 inches), ensuring compatibility with factory fittings. The hose has a centerline length of 122 mm (4.8 inches), designed to match the original equipment dimensions precisely. This hose does not contain any internal springs or quick connect fittings, simplifying the design and installation process.

Common Applications and Problem Solving

  • Replacement for cracked or leaking radiator coolant hoses in Acura MDX and Honda Pilot vehicles
  • Restores proper coolant flow in Chevrolet Colorado and GMC Canyon cooling systems
  • Prevents overheating issues in Ford Taurus and Mercury Marquis models
  • Addresses coolant leaks in Lexus GS450h and Toyota Tacoma engines
  • Suitable for maintenance or repair of cooling systems in Buick Century and Oldsmobile Sable

Installation Notes and Tips

  • Ensure the engine is cool before removing the old hose to avoid burns
  • Verify the inside diameter and length match the original hose for proper fit
  • Use appropriate clamps to secure the hose ends firmly
  • Inspect surrounding components for wear or damage during installation
  • Check for leaks after installation by running the engine and monitoring coolant flow

Quality Assurance and Warranty

Gates Molded Coolant Hose 21742 is manufactured to meet or exceed OEM specifications, providing reliable performance in demanding automotive environments. The EPDM material offers resistance to heat and coolant chemicals, contributing to long service life. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support durability and fitment.

BrandGates
Part Number21742
PositionMolded Coolant Hose, Heater Outlet
0
Yes
Branch Quantity0
Centerline Length4.8
Centerline Length122
Contains SpringNo
End 1 Inside Diameter.62
End 1 Inside Diameter16
End 2 Inside Diameter.62
End 2 Inside Diameter16
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 89 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2021ToyotaTacoma3.5LV6GASHeater OutletMolded Coolant Hose
2018ToyotaTacoma3.5LV6GASHeater OutletMolded Coolant Hose
2017ToyotaTacoma3.5LV6GASHeater OutletMolded Coolant Hose
2016ToyotaTacoma3.5LV6GASHeater OutletMolded Coolant Hose
2012ChevroletColorado2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2012GMCCanyon2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2011ChevroletColorado2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2011GMCCanyon2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2011LexusGS450h3.5LV6ELECTRIC/GASTee To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2011LexusGS450h3.5LV6ELECTRIC/GASInverter Cooling Hose-4Molded Coolant Hose
2010ChevroletColorado2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2010GMCCanyon2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2010LexusGS450h3.5LV6ELECTRIC/GASTee To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2010LexusGS450h3.5LV6ELECTRIC/GASInverter Cooling Hose-4Molded Coolant Hose
2009ChevroletColorado2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2009GMCCanyon2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2009LexusGS450h3.5LV6ELECTRIC/GASTee To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2009LexusGS450h3.5LV6ELECTRIC/GASInverter Cooling Hose-4Molded Coolant Hose
2008ChevroletColorado2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2008GMCCanyon2.9LL4GASPipe-1 To EngineMolded Coolant Hose
2008HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2008Isuzui-2902.9LL4GASPipe-1 To EngineMolded Coolant Hose
2008LexusGS450h3.5LV6ELECTRIC/GASTee To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2008LexusGS450h3.5LV6ELECTRIC/GASInverter Cooling Hose-4Molded Coolant Hose
2007HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2007LexusGS450h3.5LV6ELECTRIC/GASTee To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2007LexusGS450h3.5LV6ELECTRIC/GASInverter Cooling Hose-4Molded Coolant Hose
2006AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2006HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2005AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2005HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2004AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2004HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2003AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2003HondaPilot3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2002AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
2001AcuraMDX3.5LV6GASAuxiliary Heater InletRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1998LexusLS4004.0LV8GASPipe-5 To Pipe-6Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1995FordTaurusGL3.0LV6FLEXPipe-2 To Tee-1Molded Coolant Hose
1995FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1995FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1995FordTaurusSE3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1995MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1994FordTaurusGL3.0LV6FLEXPipe-2 To Tee-1Molded Coolant Hose
1994FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1994FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1994MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1993FordTaurusLX3.0LV6FLEXPipe-2 To Tee-1Molded Coolant Hose
1993FordTaurusGL3.0LV6FLEXPipe-2 To Tee-1Molded Coolant Hose
1993FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1993FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1993MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1992FordTaurusL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1992FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1992FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1992MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1991FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1991FordTaurusL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1991FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1991MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1990FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1990FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1990FordTaurusL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1990MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1989FordTaurusGL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1989FordTaurusL3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1989FordTaurusLX3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1989MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1988FordTaurus3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1988MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1987FordTaurus3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1987MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1986BuickCentury2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1986ChevroletCelebrity2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1986FordCougar3.8LV6GASReturnMolded Coolant Hose
1986FordTaurus3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1986MercuryCougar3.8LV6GASReturnMolded Coolant Hose
1986MercuryMarquis3.8LV6GASReturnMolded Coolant Hose
1986MercurySable3.0LV6GASPipe-2 To Tee-1Molded Coolant Hose
1986OldsmobileCutlass Ciera2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1986Pontiac60002.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985BuickCentury2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985BuickCentury2.8LV6GASPipe To EngineCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985ChevroletCelebrity2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985ChevroletCelebrity2.8LV6GASPipe To EngineCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985OldsmobileCutlass Ciera2.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985OldsmobileCutlass Ciera2.8LV6GASPipe To EngineCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985Pontiac60002.8LV6GASHeater To PipeCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose
1985Pontiac60002.8LV6GASPipe To EngineCut-to-size heater hose suitable for air conditioning systems.; Molded Coolant Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10138810R346003614-1718-614081362162645004020227S2174279117S3VA00843386073872090407089019082BP-1742BP1742C1742E6AE 8A506 BBE6DZ 8A506 AE8DE 8A506 ABE9DZ 8A506 AF0DZ 8A506 AF1DE 8A506 AAF1DH 8A506 AAG922530120G922530140YL8Z 18472 BF

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.