HomeBelts and Cooling > Hoses and PipesGates 23902 Radiator Coolant Hose - Upper
Part #: 23902

Gates 23902 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Upper
🚗Fitment: Hyundai and Kia, Optima and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Molded Coolant Hose 23902

The Gates Molded Coolant Hose 23902 is designed specifically for Hyundai and Kia vehicles, including the Optima and Sonata models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.

  • Made from high-quality EPDM rubber for heat and chemical resistance
  • Molded design for precise fit and durability
  • Centerline length of 25.7 inches (653 mm) for accurate installation
  • Consistent inside diameter of 1.35 inches (34 mm) on both ends
  • Does not contain a spring or quick connect fittings

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on providing pre-formed hoses that match exact OEM specifications. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or premature wear. The 23902 part benefits from this precise molding process, ensuring compatibility and longevity in Hyundai Optima and Kia Sonata cooling systems.

Detailed Product Description

This radiator coolant hose is engineered from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded construction maintains consistent dimensions, with both ends featuring an inside diameter of 1.35 inches (34 mm), facilitating a secure connection to the cooling system components. With a centerline length of 25.7 inches (653 mm), the hose fits the specified Hyundai and Kia models without modification. The absence of springs and quick connect fittings indicates a straightforward installation process, relying on standard clamps.

Common Applications and Problem Solving

  • Replacement of cracked or leaking radiator coolant hoses in Hyundai Optima and Kia Sonata
  • Addressing coolant leaks caused by hose deterioration or swelling
  • Restoring proper coolant flow to prevent engine overheating
  • Upgrading worn or brittle hoses to maintain cooling system integrity
  • Ensuring OEM-level fitment and performance in cooling system repairs

Installation Notes and Tips

Before installing the Gates Molded Coolant Hose 23902, ensure the engine is cool to avoid burns. Drain the coolant system to prevent spills. Remove the old hose carefully, inspecting clamps and connection points for corrosion or damage. Install the new molded hose by aligning the ends with the radiator and engine fittings, securing with appropriate clamps. Verify that the hose is free of kinks and properly seated to maintain coolant flow.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 23902 to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to long service life under normal operating conditions. While specific warranty details are not provided here, Gates typically offers coverage against manufacturing defects. Consult product documentation or the manufacturer for exact warranty terms.

BrandGates
Part Number23902
PositionMolded Coolant Hose, Upper
MaterialEpdm
End 1 Inside Diameter1.35
End 1 Inside Diameter34
End 2 Inside Diameter1.35
End 2 Inside Diameter34
Contains SpringNo
Centerline Length25.7
Centerline Length653
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2016KiaCadenza3.3LV6GASUpperAvailable Until Stock Depleted; Molded Coolant Hose
2015KiaCadenza3.3LV6GASUpperAvailable Until Stock Depleted; Molded Coolant Hose
2015KiaOptima2.0LL4GASUpperMolded Coolant Hose
2014HyundaiSonata2.0LL4GASUpperMolded Coolant Hose
2014KiaCadenza3.3LV6GASUpperAvailable Until Stock Depleted; Molded Coolant Hose
2014KiaOptima2.0LL4GASUpperMolded Coolant Hose
2013HyundaiSonata2.0LL4GASUpperMolded Coolant Hose
2013KiaOptima2.0LL4GASUpperMolded Coolant Hose
2012HyundaiSonata2.0LL4GASUpperMolded Coolant Hose
2012KiaOptima2.0LL4GASUpperMolded Coolant Hose
2011HyundaiSonata2.0LL4GASUpperMolded Coolant Hose
2011KiaOptima2.0LL4GASUpperMolded 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:

1657123902254113Q000254143Q00027088X6665572952E72952

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