Gates 21494 Radiator Coolant Hose - Lower
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Gates
 Molded Coolant Hose

Gates 21494 Radiator Coolant Hose - Lower

Brand Gates 21494
Position Lower
0
Yes
Branch Quantity 0
Centerline Length 25.3
Centerline Length 643
Contains Spring Yes
End 1 Inside Diameter 1.5
End 1 Inside Diameter 38
End 2 Inside Diameter 1.75
End 2 Inside Diameter 44
Material EPDM
Modular Hose No
Molded Yes
Number of Quick Connect Fittings 0
Product line Molded Coolant Hose
Fits Chevrolet and GMC · 20 vehicles

OEM-quality specifications. Built for a precise replacement fit in coolant applications.

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

Spring reinforced. Helps the hose hold shape under pressure and heat.

Cross-references Dayco 71285, Eastern Catalytic 41358 and FEL-PRO 61358 for the same application. See all 14.

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Free returns within 60 days if it doesn't fit when fitment is verified.
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Gates 21494 Molded Coolant Hose

The Gates 21494 molded coolant hose is built for lower radiator hose service on select Chevrolet and GMC trucks from 1985-1987. Made from EPDM and formed to an OEM-style shape, it supports a direct replacement for the original coolant routing on listed applications.

Key Features

  • EPDM construction for coolant system durability
  • Molded hose profile for application-specific routing
  • Contains an internal spring
  • End inside diameters: 1.5 in. (38 mm) and 1.75 in. (44 mm)
  • Centerline length: 25.3 in. (643 mm)
  • Lower radiator coolant hose for listed Chevrolet and GMC fitments

Product Details

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications with OEM-quality specifications. The Gates 21494 part number is part of that molded hose family and is shaped for the lower hose position on 1985-1987 Chevrolet C10, C20, K10, K20, R10, R20, V10 and GMC C1500, C2500, K1500, K2500, R1500, R2500, V1500 models. This molded coolant hose uses EPDM material and an internal spring to help maintain hose shape in cooling-system service.

This part cross-references Dayco 71285 for the same application.

What It Helps Address

  • Cracked or split lower radiator hose
  • Coolant leaks at the hose body
  • Collapsed hose shape under cooling-system vacuum
  • Incorrect hose routing from a non-molded replacement
  • Fitment issues on lower hose service for listed Chevrolet and GMC trucks

Installation Notes and Tips

Verify the vehicle year, make, model, and lower hose position before installation. Compare the hose shape, end diameters, and centerline length to the removed part to confirm Gates 21494 matches the original routing. Inspect hose clamps, radiator necks, and engine fittings for wear or corrosion before installing the new hose.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The Gates 21494 part number is engineered as a direct replacement style hose for cooling-system service on the confirmed Chevrolet and GMC fitments.

Related reading

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1987ChevroletR104.3LV6GASLowerMolded Coolant Hose
1987ChevroletR204.3LV6GASLowerMolded Coolant Hose
1987ChevroletV104.3LV6GASLowerMolded Coolant Hose
1987GMCR15004.3LV6GASLowerMolded Coolant Hose
1987GMCR25004.3LV6GASLowerMolded Coolant Hose
1987GMCV15004.3LV6GASLowerMolded Coolant Hose
1986ChevroletC104.3LV6GASLowerMolded Coolant Hose
1986ChevroletC204.3LV6GASLowerMolded Coolant Hose
1986ChevroletK104.3LV6GASLowerMolded Coolant Hose
1986GMCC15004.3LV6GASLowerMolded Coolant Hose
1986GMCC25004.3LV6GASLowerMolded Coolant Hose
1986GMCK15004.3LV6GASLowerMolded Coolant Hose
1985ChevroletC104.3LV6GASLowerMolded Coolant Hose
1985ChevroletC204.3LV6GASLowerMolded Coolant Hose
1985ChevroletK104.3LV6GASLowerMolded Coolant Hose
1985ChevroletK204.3LV6GASLowerMolded Coolant Hose
1985GMCC15004.3LV6GASLowerMolded Coolant Hose
1985GMCC25004.3LV6GASLowerMolded Coolant Hose
1985GMCK15004.3LV6GASLowerMolded Coolant Hose
1985GMCK25004.3LV6GASLowerMolded Coolant Hose
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 71285Eastern Catalytic — 41358FEL-PRO — 61358Gates — 2149414-1821-877-8907-6517821124173L15588508C1494E71285KM-2186MH-4494