HomeBelts and Cooling > Hoses and PipesGates 21343 Radiator Coolant Hose - Upper
Part #: 21343

Gates 21343 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
60 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, Upper
Fitment: Ford, Bronco, F-100, F-150, F-250, and F-350
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Radiator Coolant Hose for Ford Trucks

The Gates Molded Coolant Hose 21343 is engineered to provide dependable cooling system performance for Ford Bronco, F-100, F-150, F-250, and F-350 models. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility under demanding conditions.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and leak prevention
  • Centerline length of 27.8 inches (706 mm) for accurate installation
  • Inside diameter of 1.5 inches (38 mm) on both ends for standard coolant flow
  • Compatible with Ford Bronco, F-100, F-150, F-250, and F-350 vehicles

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 the integrity of the cooling system in Ford trucks. The molded construction of part number 21343 ensures a secure connection and reduces the risk of leaks or hose failure.

Product Details and Specifications

This radiator coolant hose features a molded design made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1.5 inches (38 mm), making it suitable for standard radiator connections. The hose measures 27.8 inches (706 mm) in centerline length, providing the correct reach for the specified Ford models. It does not contain any springs or quick connect fittings, ensuring a straightforward installation process.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford Bronco and F-Series trucks
  • Resolving coolant leaks caused by hose deterioration or improper fit
  • Maintaining optimal engine temperature by ensuring proper coolant flow
  • Preventing overheating issues related to damaged or collapsed hoses
  • Upgrading to a molded hose for improved durability and fitment accuracy

Installation Notes and Tips

Before installation, verify the hose length and diameter match your vehicle’s specifications. Ensure the cooling system is cool and depressurized to avoid injury. Use appropriate clamps to secure the hose ends firmly to the radiator and engine fittings. The molded design of the Gates 21343 hose simplifies alignment, but double-check for any twists or kinks during installation to maintain coolant flow.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21343 to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction contribute to long service life under typical operating conditions. While specific warranty details are not provided here, Gates products generally come with manufacturer-backed quality assurance to support reliable operation in Ford Bronco and F-Series trucks.

BrandGates
Part Number21343
PositionMolded Coolant Hose, Upper
MaterialEpdm
End 1 Inside Diameter1.5
End 1 Inside Diameter38
End 2 Inside Diameter1.5
End 2 Inside Diameter38
Contains SpringNo
Centerline Length27.8
Centerline Length706
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 60 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1984FordBronco4.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordBronco4.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-1504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-1504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-1504.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-1504.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-2504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-2504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-2504.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-2504.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-3504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-3504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1984FordF-3504.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1984FordF-3504.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1983FordBronco4.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1983FordBronco4.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1983FordF-1004.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1983FordF-1004.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1983FordF-1504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1983FordF-1504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1983FordF-2504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1983FordF-2504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1983FordF-3504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1983FordF-3504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordBronco4.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordBronco4.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-1004.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-1004.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-1004.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-1004.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-1504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-1504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-2504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-2504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-2504.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-2504.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-3504.9LL6GASUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-3504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1982FordF-3504.9LL6LPGUpperHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
1982FordF-3504.9LL6LPGUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1981FordBronco4.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1981FordBronco4.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1981FordF-1004.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1981FordF-1004.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1981FordF-1504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1981FordF-1504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1981FordF-2504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1981FordF-2504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1981FordF-3504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1981FordF-3504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1980FordBronco4.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1980FordBronco4.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1980FordF-1004.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1980FordF-1004.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1980FordF-1504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1980FordF-1504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1980FordF-2504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1980FordF-2504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded Coolant Hose
1980FordF-3504.9LL6GASUpperW/Factory Inst. A.C.; Molded Coolant Hose
1980FordF-3504.9LL6GASUpperWithout Air Conditioning; With Air Conditioning; Molded 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:

14-1846-02134325526095X4118360637611486118370487710377114677-8885-479418044C1343E0TA 8260 BCE0TA 8260 BDE0TA 8260 DBE0TZ 8260 BE2TA 8260 JAE2TA 83274 RAE2TA 8B274 MAE2TA 8B274 MBE2TA 8B274 RAE2TZ 8260 BE71146KM-1123KM-1287MH-1183MH576MR771

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