HomeBelts and Cooling > Hoses and PipesGates 21307 Radiator Coolant Hose - Lower - Engine To Pipe, Lower - Pipe To Radiator or Upper - Engine To Pipe
Part #: 21307

Gates 21307 Radiator Coolant Hose - Lower - Engine To Pipe, Lower - Pipe To Radiator or Upper - Engine To Pipe

Upper - Engine To Pipe, Lower - Engine To Pipe, and Lower - Pipe To Radiator
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Reliable Radiator Coolant Hose for Efficient Cooling

The Gates Molded Coolant Hose 21307 is engineered to provide dependable performance in your vehicle's cooling system. Designed with durable EPDM material and a molded construction, this radiator coolant hose ensures a secure fit and long-lasting service.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and reduced risk of leaks
  • Contains an internal spring to maintain hose shape and prevent collapse
  • End 1 and End 2 inside diameters measure 2 inches (51 mm) for consistent flow
  • Centerline length of 8.7 inches (221 mm) for accurate fitment
  • Zero branch quantity and no quick connect fittings for straightforward installation

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle cooling system requirements. This reduces installation time and improves reliability by minimizing the need for hose bending or modification. The 21307 part benefits from this molded design, ensuring compatibility with the intended radiator connections and maintaining optimal coolant flow.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded construction provides a precise shape that fits securely between radiator and engine components, reducing the chance of leaks or hose failure. An internal spring reinforcement helps the hose maintain its shape under vacuum conditions, preventing collapse during engine operation. With a centerline length of 221 mm (8.7 inches) and consistent 2-inch (51 mm) inside diameters on both ends, this hose is designed for specific vehicle applications requiring these dimensions.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses
  • Prevention of coolant leaks caused by hose deformation or collapse
  • Restoration of proper coolant flow in overheating vehicles
  • Upgrading to a molded hose for improved fit and durability
  • Addressing hose failures due to heat and chemical degradation

Installation Notes and Tips

Ensure the vehicle is cool before removing the old hose to avoid burns. Verify that the inside diameters and centerline length match your vehicle’s specifications. The molded design of the Gates 21307 hose allows for straightforward installation without the need for bending or shaping. Inspect hose clamps and replace if necessary to secure the hose properly. Check for any signs of wear or damage on adjacent components during installation.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21307 to meet stringent quality standards, using durable EPDM material and reinforced construction. While specific warranty details are not provided, Gates products typically adhere to industry standards for reliability and performance in automotive cooling systems.

BrandGates
Part Number21307
MaterialEpdm
End 1 Inside Diameter2
End 1 Inside Diameter51
End 2 Inside Diameter2
End 2 Inside Diameter51
Contains SpringYes
Centerline Length221
Centerline Length8.7
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

01477702707025915509947155172591551726015517261155185441555112715561809155618101562430915624310180183620141S20642622130757760393705778018994652C1B70577E0HT 8286 BMAE0HT 8286 BNAE0HZ 8286 DE3HZ 8286 DKM-1182KM-119KMS-1307MH-4307MR658

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