HomeBelts and Cooling > Hoses and PipesGates 21504 Radiator Coolant Hose - Lower or Upper
Part #: 21504

Gates 21504 Radiator Coolant Hose - Lower or Upper

Molded Coolant Hose, Lower
5 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Molded Coolant Hose, Lower
Fitment: Toyota and Ford, Corolla and Thunderbird
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Overview of Gates Molded Coolant Hose 21504

The Gates Molded Coolant Hose 21504 is designed for reliable cooling system performance in select Ford and Toyota vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for models like the Toyota Corolla and Ford Thunderbird.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Molded design for precise fit and secure installation
  • Centerline length of 16.1 inches (409 mm) for accurate routing
  • End 1 and End 2 inside diameters both measure 1.18 inches (30 mm)
  • Compatible with Ford Thunderbird and Toyota Corolla cooling systems

Detailed Product Description

The Gates Molded Coolant Hose part number 21504 is a radiator coolant hose crafted from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features a molded construction, which provides a precise shape that matches the original equipment specifications, ensuring a secure and leak-free connection. Both ends of the hose have an inside diameter of 1.18 inches (30 mm), making it suitable for specific radiator and engine connections. With a centerline length of 16.1 inches (409 mm), this hose fits the cooling system layout of compatible vehicles without the need for modification.

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact OEM shapes. This eliminates the need for bending or shaping during installation, reducing the risk of kinks or improper fitment. The molded design also helps maintain consistent coolant flow and system pressure, which is critical for engine temperature regulation. Part number 21504 is part of this line, offering a direct replacement solution for select Ford and Toyota models.

Common Applications and Problem Solving

  • Replacement for cracked or leaking radiator coolant hoses
  • Solves coolant flow restrictions caused by collapsed or damaged hoses
  • Addresses overheating issues related to faulty coolant hose connections
  • Prevents coolant leaks that can lead to engine damage
  • Restores proper coolant circulation in Ford Thunderbird and Toyota Corolla vehicles

Installation Notes and Tips

  • Ensure the engine is cool before removing the old hose to avoid burns
  • Check hose clamps and replace if worn or corroded for a secure fit
  • Verify the hose orientation matches the molded shape for proper installation
  • Inspect surrounding components for wear or damage during replacement
  • Use appropriate coolant type recommended by the vehicle manufacturer

Quality Assurance and Warranty

Gates Molded Coolant Hose 21504 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material provides resistance to heat, pressure, and automotive fluids, contributing to long service life. While specific warranty details may vary, Gates typically offers coverage against defects in material and workmanship, ensuring confidence in the product's reliability for Ford Thunderbird and Toyota Corolla applications.

BrandGates
Part Number21504
PositionMolded Coolant Hose, Lower
0
Yes
Branch Quantity0
Centerline Length16.1
Centerline Length409
Contains SpringNo
End 1 Inside Diameter1.18
End 1 Inside Diameter30
End 2 Inside Diameter1.18
End 2 Inside Diameter30
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 5 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersFuel TypePositionNotes
1987ToyotaCorollaSport SR51.6LL4GASLowerMolded Coolant Hose
1986ToyotaCorollaSport SR51.6LL4GASLowerMolded Coolant Hose
1985ToyotaCorollaSport SR51.6LL4GASLowerMolded Coolant Hose
1984ToyotaCorollaRWD1.6LL4GASLowerMolded Coolant Hose
1982FordThunderbird3.3LL6GASUpperMolded 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:

14-2126-8142-597216572151602150422192M231705131870654-0211854-05456709318219931C70931KM-2190MH-4504

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