Gates 21733 Radiator Coolant Hose - Intake Manifold To Engine
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Gates
 Molded Coolant Hose

Gates 21733 Radiator Coolant Hose - Intake Manifold To Engine

Brand Gates 21733
Position Intake Manifold To Engine
0
Yes
Branch Quantity 0
Centerline Length 9.9
Centerline Length 251
Contains Spring No
End 1 Inside Diameter .62
End 1 Inside Diameter 16
End 2 Inside Diameter .62
End 2 Inside Diameter 16
Material EPDM, Plastic
Modular Hose No
Molded Yes
Number of Quick Connect Fittings 0
Product line Molded Coolant Hose
Fits Geo, Isuzu, Chevrolet, and Pontiac · 21 vehicles

OEM-quality specifications. Molded coolant hose built to match replacement needs.

Molded design. Shaped for coolant routing with a precise fit.

EPDM and plastic. Durable materials for dependable coolant transfer.

Cross-references Anchor 3028, AP Exhaust 8423 and AP Exhaust 642223 for the same application. See all 16.

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Gates 21733 Molded Coolant Hose

Gates 21733 is a molded radiator coolant hose built to OEM-quality specifications for select Geo, Isuzu, Chevrolet, and Pontiac applications. It is formed for coolant routing where a straight hose will not match the factory path, helping restore proper fit and coolant flow.

Key Features

  • Molded coolant hose for radiator and engine coolant routing
  • EPDM and plastic construction for cooling-system service
  • 16 mm inside diameter at both ends
  • 9.9 in centerline length
  • No spring and no quick-connect fittings
  • Direct replacement style for upper, lower, bypass, heater, and related coolant applications

Product Details

The Gates Molded Coolant Hose line is engineered for replacement cooling-system service where factory-shaped routing matters. Part number 21733 is a molded hose with a 16 mm inside diameter at each end and a 9.9-inch centerline length, making it a practical choice for vehicles that need a formed hose to follow the original coolant path. This hose is listed for 1985-1989 Isuzu I-Mark, 1985-1988 Chevrolet Spectrum, 1985-1988 Pontiac Sunburst, and 1989 Geo Spectrum, including intake manifold to engine routing on select applications. This part cross-references Dayco 71307 for the same application.

Common Problems This Hose Can Address

  • Cracked or leaking molded coolant hose
  • Incorrect hose routing after a repair
  • Coolant seepage at aged hose connections
  • Loss of proper coolant flow through a damaged hose
  • Fitment issues when a straight hose does not match the factory shape

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length against the original part before installation. Inspect mating necks and clamps for wear, corrosion, or distortion, and replace any damaged cooling-system components as needed. Confirm the application on your Chevrolet Spectrum, Pontiac Sunburst, Geo Spectrum, or Isuzu I-Mark by year and position, especially for intake manifold to engine routing.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in cooling-system service. The molded design supports factory-style routing and consistent fitment across the listed applications.

Related reading

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1989GeoSpectrum1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1989IsuzuI-Mark1.5LL4GASN/AMolded Coolant Hose
1988ChevroletSpectrum1.5LL4GASN/AMolded Coolant Hose
1988ChevroletSpectrum1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1988IsuzuI-Mark1.5LL4GASN/AMolded Coolant Hose
1988PontiacSunburst1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1987ChevroletSpectrum1.5LL4GASN/AMolded Coolant Hose
1987ChevroletSpectrum1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1987IsuzuI-Mark1.5LL4GASN/AMolded Coolant Hose
1987PontiacSunburst1.5LL4GASN/AMolded Coolant Hose
1987PontiacSunburst1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1986ChevroletSpectrum1.5LL4GASN/AMolded Coolant Hose
1986ChevroletSpectrum1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1986IsuzuI-Mark1.5LL4GASN/AMolded Coolant Hose
1986PontiacSunburst1.5LL4GASN/AMolded Coolant Hose
1986PontiacSunburst1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1985ChevroletSpectrum1.5LL4GASN/AMolded Coolant Hose
1985ChevroletSpectrum1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
1985IsuzuI-Mark1.5LL4GASN/AMolded Coolant Hose
1985PontiacSunburst1.5LL4GASN/AMolded Coolant Hose
1985PontiacSunburst1.5LL4GASIntake Manifold To EngineMolded Coolant Hose
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 3028AP Exhaust — 8423AP Exhaust — 642223Dayco — 71307Four Seasons — 63032Gates — 2173314227S43032941144299417678389411442908941767830B71307BP-1733C1733KM-2295