HomeBelts and Cooling > Hoses and PipesGates 51604 Radiator Coolant Hose - Lower
Part #: 51604

Gates 51604 Radiator Coolant Hose - Lower

Molded Coolant Hose, Lower
⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Lower
🚗Fitment: Fiat, 500 and 500L
🔄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 Fiat 500 and 500L

The Gates Molded Coolant Hose 51604 is engineered to provide dependable cooling system performance for Fiat 500 and 500L models. Designed with durable materials and precise dimensions, this radiator coolant hose ensures efficient coolant flow and system integrity.

  • Constructed from EPDM, plastic, and steel for durability and heat resistance
  • Molded design with a centerline length of approximately 16.5 to 18 inches (419 mm)
  • Features one branch with a female quick connector and one quick connect fitting
  • End 1 inside diameter measures 1.15 inches (29 mm), End 2 inside diameter measures 1.6 inches (41 mm), End 3 inside diameter is 0.7 inches
  • Does not contain a spring, ensuring consistent hose flexibility and fit

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses designed to meet specific vehicle cooling system requirements. This product line incorporates molded construction and modular components such as quick connectors and branches to facilitate secure connections and reliable coolant flow. The 51604 part exemplifies these features, tailored for Fiat 500 and 500L applications.

Product Details and Specifications

This radiator coolant hose is molded from EPDM rubber combined with plastic and steel components, providing resistance to heat, pressure, and coolant chemicals. The hose includes one branch with a female quick connector and a single quick connect fitting, allowing for straightforward integration into the cooling system. The centerline length ranges from 16.5 to 18 inches (419 mm), accommodating the specific routing needs of the Fiat 500 and 500L cooling systems. The varying inside diameters at each end ensure a proper seal and fit with corresponding radiator and engine connections.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Fiat 500 and 500L vehicles
  • Resolving coolant leaks caused by hose degradation or improper fit
  • Addressing overheating issues related to compromised coolant flow
  • Upgrading to a molded hose with quick connect fittings for improved maintenance
  • Ensuring compatibility with factory cooling system components for reliable operation

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51604, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation and confirm the quick connect fittings engage securely. Inspect all connection points for proper sealing to prevent leaks. Use appropriate clamps or retainers as required by the vehicle manufacturer. Proper installation will maintain coolant system integrity and prevent premature hose failure.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51604 to meet or exceed OEM specifications for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Gates products are generally backed by quality standards consistent with professional automotive replacement parts.

BrandGates
Part Number51604
PositionMolded Coolant Hose, Lower
MaterialEpdm, plastic, steel
End 1 Inside Diameter1.15
End 1 Inside Diameter29
End 2 Inside Diameter1.6
End 2 Inside Diameter41
Contains SpringNo
Centerline Length16.5
Centerline Length18
Centerline Length419
End 3 Inside Diameter.7
Branch Quantity1
9839Yes
98451
Modular ComponentsBranch, female quick connector
Modular HoseYes
MoldedYes
Number of Quick Connect Fittings1

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2019Fiat5001.4LL4GASLowerMolded Coolant Hose
2018Fiat5001.4LL4GASLowerMolded Coolant Hose
2018Fiat500L1.4LL4GASLowerMolded Coolant Hose
2017Fiat5001.4LL4GASLowerMolded Coolant Hose
2016Fiat5001.4LL4GASLowerMolded Coolant Hose
2016Fiat500L1.4LL4GASLowerMolded Coolant Hose
2015Fiat5001.4LL4GASLowerMolded Coolant Hose
2015Fiat500L1.4LL4GASLowerMolded Coolant Hose
2014Fiat5001.4LL4GASLowerMolded Coolant Hose
2014Fiat500L1.4LL4GASLowerMolded Coolant Hose
2013Fiat5001.4LL4GASLowerMolded 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:

27864X5160452014688ACCHR0485

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