Homeβ€Ί Belts and Cooling > Hoses and Pipesβ€Ί Gates 20489 Radiator Coolant Hose - Lower
Part #: 20489

Gates 20489 Radiator Coolant Hose - Lower

Molded Coolant Hose, Lower
63 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement β€” Bolt-on fit, no modifications needed
Molded Coolant Hose, Lower
Fitment: Chevrolet, GMC, and Cadillac, Blazer, C10 Pickup, C10 Suburban, C20 Pickup, C20 Suburban, C30 Pickup, K10 Pickup, K10 Suburban, K20 Pickup, K20 Suburban, K30 Pickup, P10 Van, P20 Van, P30 Van, C15/C1500 Pickup, C15/C1500 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C35/C3500 Pickup, Jimmy, K15/K1500 Pickup, K15/K1500 Suburban, K25/K2500 Pickup, K25/K2500 Suburban, K35/K3500 Pickup, P15/P1500 Van, P25/P2500 Van, P35/P3500 Van, G10 Van, G20 Van, G30 Van, G15/G1500 Van, G25/G2500 Van, G35/G3500 Van, C10 Panel, C20 Panel, K20 Panel, Commercial Chassis, Fleetwood, DeVille, Eldorado, Series 60 Fleetwood, Series 62, and Series 75 Fleetwood
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Overview of Gates Molded Coolant Hose 20489

The Gates Molded Coolant Hose 20489 is engineered for reliable cooling system performance in select Cadillac, Chevrolet, and GMC vehicles. Designed with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for models like the Blazer, C10 Suburban, and DeVille.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Molded design for precise fit and secure installation
  • Centerline length of 17.8 inches (452 mm) for accurate routing
  • Consistent inside diameter of 1.75 inches (44 mm) on both ends
  • Compatible with multiple GM vehicles including Cadillac Eldorado and GMC Jimmy

Detailed Product Description

The Gates Molded Coolant Hose 20489 is a molded radiator coolant hose made from EPDM (ethylene propylene diene monomer) rubber, known for its durability and resistance to heat, ozone, and coolant chemicals. Both ends of the hose feature an inside diameter of 1.75 inches (44 mm), ensuring a uniform connection to the cooling system components. With a centerline length of 17.8 inches (452 mm), this hose is designed to fit specific GM vehicles without the need for modification. The molded construction eliminates the need for clamps or additional fittings, providing a secure and leak-resistant seal. This hose does not contain any springs or quick connect fittings, simplifying installation and maintenance.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on precision-molded hoses that provide exact fitment and reliable performance in automotive cooling systems. These hoses are designed to meet or exceed OEM specifications, offering consistent dimensions and material quality. The molded design reduces the risk of leaks and improves coolant flow efficiency, making it suitable for vehicles requiring exact hose shapes and lengths, such as the Cadillac Fleetwood and Chevrolet K20 Suburban.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses
  • Resolving coolant leaks caused by hose degradation
  • Preventing overheating due to compromised coolant flow
  • Maintaining proper coolant system pressure and circulation
  • Ensuring compatibility with specific GM vehicle cooling systems

Installation Notes and Tips

  • Verify hose dimensions and fitment with your vehicle model before installation
  • Ensure cooling system is cool and depressurized prior to removal
  • Inspect hose connections and clamps for wear and replace if necessary
  • Lubricate hose ends with coolant or water to ease installation
  • Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Gates Molded Coolant Hose 20489 is manufactured to meet stringent quality standards, ensuring durability and performance in demanding automotive environments. The EPDM material provides resistance to heat, ozone, and coolant chemicals, contributing to long service life. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in material and workmanship.

BrandGates
Part Number20489
PositionMolded Coolant Hose, Lower
0
Yes
Branch Quantity0
Centerline Length17.8
Centerline Length452
Contains SpringNo
End 1 Inside Diameter1.75
End 1 Inside Diameter44
End 2 Inside Diameter1.75
End 2 Inside Diameter44
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 63 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
1972ChevroletBlazer4.1LL6GASLowerMolded Coolant Hose
1972ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1972ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1972ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1972ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1972ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1972ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1972ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1972GMCJimmy4.1LL6GASLowerMolded Coolant Hose
1971ChevroletBlazer4.1LL6GASLowerMolded Coolant Hose
1971ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1971ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1971ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1971ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1971ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1971ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1971ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1971GMCG15/G1500 VanManual4.1LL6GASLowerMolded Coolant Hose
1971GMCG25/G2500 VanManual4.1LL6GASLowerMolded Coolant Hose
1971GMCG35/G3500 VanManual4.1LL6GASLowerMolded Coolant Hose
1971GMCJimmy4.1LL6GASLowerMolded Coolant Hose
1970ChevroletBlazer4.1LL6GASLowerMolded Coolant Hose
1970ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1970ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1970ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1970ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1970ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1970ChevroletK10 Suburban4.8LL6GASLowerMolded Coolant Hose
1970ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1970ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1970GMCJimmy4.1LL6GASLowerMolded Coolant Hose
1969ChevroletBlazer4.1LL6GASLowerMolded Coolant Hose
1969ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1969ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1969ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1969ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1969ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1969ChevroletK10 Suburban4.8LL6GASLowerMolded Coolant Hose
1969ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1969ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1968ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1968ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1968ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1968ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1968ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1968ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1968ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1967ChevroletC10 Suburban4.1LL6GASLowerMolded Coolant Hose
1967ChevroletC10 Suburban4.8LL6GASLowerMolded Coolant Hose
1967ChevroletC20 Suburban4.1LL6GASLowerMolded Coolant Hose
1967ChevroletC20 Suburban4.8LL6GASLowerMolded Coolant Hose
1967ChevroletK10 Suburban4.1LL6GASLowerMolded Coolant Hose
1967ChevroletK10 Suburban4.8LL6GASLowerMolded Coolant Hose
1967ChevroletK20 Suburban4.1LL6GASLowerMolded Coolant Hose
1967ChevroletK20 Suburban4.8LL6GASLowerMolded Coolant Hose
1965CadillacCommercial Chassis7.0LV8GASLowerMolded Coolant Hose
1965CadillacFleetwood7.0LV8GASLowerMolded Coolant Hose
1964CadillacCommercial Chassis7.0LV8GASLowerMolded Coolant Hose
1964CadillacDeVille7.0LV8GASLowerMolded Coolant Hose
1964CadillacEldorado7.0LV8GASLowerMolded Coolant Hose
1963CadillacCommercial Chassis6.4LV8GASLowerMolded Coolant Hose
1963CadillacDeVille6.4LV8GASLowerMolded Coolant Hose
1963CadillacEldorado6.4LV8GASLowerMolded 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:

09114-1689-4147839420132048922022M35437650136823897878389854538985473908413395758239575836037160432623703317035470623706657293BH-872BH-913C0489C70354C70623KM-5MC119MC12MH370MR639MR695RH134

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