HomeBelts and Cooling > Hoses and PipesGates 21589 Radiator Coolant Hose - Lower or Upper
Part #: 21589

Gates 21589 Radiator Coolant Hose - Lower or Upper

Molded Coolant Hose, Upper and Lower
⚙️ 24 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Upper and Lower
🚗Fitment: Ford, Mercury, and Volvo, 740, 745, 940, Cougar, and Thunderbird
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Reliable Radiator Coolant Hose for Ford, Mercury, and Volvo Vehicles

The Gates Molded Coolant Hose 21589 is engineered to provide dependable cooling system performance for select Ford, Mercury, and Volvo models. Designed with precision and durable EPDM material, this radiator coolant hose ensures a secure fit and long-lasting service life.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Molded design for precise fit and leak prevention
  • End 1 inside diameter: 1.19 inches (30 mm)
  • End 2 inside diameter: 1.3 inches (33 mm)
  • Centerline length: 18.7 inches (475 mm)
  • Compatible with Ford 740, 745, 940, Mercury Cougar, and Thunderbird models
  • Part number 21589 for accurate identification

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, eliminating the need for bending or shaping during installation. This product line emphasizes durability and fitment accuracy, which helps maintain optimal coolant flow and reduces the risk of leaks or hose failure in automotive cooling systems.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The molded construction ensures the hose maintains its shape and fits precisely between cooling system components. With an 18.7-inch centerline length and differing inside diameters on each end (1.19 inches and 1.3 inches), this hose is designed to match specific radiator and engine connections on compatible vehicles. The absence of springs and quick connect fittings simplifies the hose design, focusing on reliability and ease of maintenance.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford 740, 745, 940 models
  • Addressing coolant leaks in Mercury Cougar and Thunderbird cooling systems
  • Restoring proper coolant flow to prevent engine overheating
  • Eliminating hose collapse or deformation under pressure
  • Ensuring a secure, leak-free connection in the vehicle's cooling circuit

Installation Notes and Tips

Before installation, verify the part number 21589 matches your vehicle’s requirements. Ensure the cooling system is cool and depressurized to avoid injury. Remove the old hose carefully, inspecting clamps and fittings for wear. Install the Gates Molded Coolant Hose by aligning the molded ends with the radiator and engine ports, securing clamps firmly but without over-tightening to prevent damage. Check for leaks after installation by running the engine to operating temperature.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21589 to meet or exceed OEM specifications, ensuring reliable performance in compatible Ford, Mercury, and Volvo vehicles. The EPDM material and molded design contribute to durability and resistance to common coolant system stresses. Warranty details should be confirmed with the original equipment provider or distributor.

BrandGates
Part Number21589
PositionMolded Coolant Hose, Upper and Lower
MaterialEpdm
End 1 Inside Diameter1.19
End 1 Inside Diameter30
End 2 Inside Diameter1.3
End 2 Inside Diameter33
Contains SpringNo
Centerline Length18.7
Centerline Length475
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 24 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1995FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1995Volvo9402.3LL4GASLowerMolded Coolant Hose
1994FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1994Volvo9402.3LL4GASLowerMolded Coolant Hose
1993FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1993Volvo9402.3LL4GASLowerMolded Coolant Hose
1992FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1992Volvo7402.3LL4GASLowerMolded Coolant Hose
1992Volvo9402.3LL4GASLowerMolded Coolant Hose
1991FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1991Volvo7402.3LL4GASLowerMolded Coolant Hose
1991Volvo9402.3LL4GASLowerMolded Coolant Hose
1990FordCougar3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1990FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1990MercuryCougar3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1990Volvo7402.3LL4GASLowerMolded Coolant Hose
1989FordThunderbird3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1989MercuryCougar3.8LV6GASUpperRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1989Volvo7402.3LL4GASLowerMolded Coolant Hose
1988Volvo7402.3LL4GASLowerMolded Coolant Hose
1987Volvo7402.3LL4GASLowerMolded Coolant Hose
1986Volvo7402.3LL4GASLowerMolded Coolant Hose
1985Volvo7402.3LL4GASLowerMolded Coolant Hose
1985Volvo7452.3LL4GASLowerMolded 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:

127637713268341326834713364081336434133643514-2517-8142-60662158922207M490492625347141883089022014490220541C1589D71418E9SE 8B274 CCE9SE 8B274 DBE9SZ 8260 EF1SE 8B274 BAF1SE 8B274 CAF1SZ 8260 BF1SZ 8260 CF3SE 8B274 CBF3SE 8B274 DDKM-1742KM-1785KM-1791KM-1808KM-1989KM-1990MC185MR578R18126U34-5954

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