HomeBelts and Cooling > Hoses and PipesGates 51420 Radiator Coolant Hose - Upper
Part #: 51420

Gates 51420 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
⚙️ 4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Upper
🚗Fitment: Mercedes-Benz, E350 and E550
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Radiator Coolant Hose for Mercedes-Benz E350 and E550

The Gates Molded Coolant Hose 51420 is engineered to provide a precise fit and durable performance for Mercedes-Benz E350 and E550 models. Designed with quality materials and molded construction, this radiator coolant hose ensures efficient coolant flow and system reliability.

  • Constructed from EPDM, plastic, and steel for durability and heat resistance
  • Molded design with a centerline length of 610 mm (24 inches) for exact fitment
  • Features female quick connector and two male quick connectors for secure connections
  • Inside diameter of 36 mm (1.4 inches) on both ends for consistent coolant flow
  • Includes three quick connect fittings for modular hose assembly

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that integrate molded shapes and quick connect fittings to simplify installation and improve coolant system integrity. This product line is designed to meet specific vehicle requirements, such as those for Mercedes-Benz E350 and E550, ensuring compatibility and reliable performance under demanding conditions.

Product Details and Specifications

The Gates 51420 radiator coolant hose is made from a combination of EPDM rubber, plastic, and steel components, providing resistance to heat, pressure, and coolant chemicals. Both ends of the hose have an inside diameter of 36 mm (1.4 inches), matching OEM specifications for proper coolant flow. The molded hose measures 610 mm (24 inches) in centerline length, ensuring a precise fit without the need for modifications. The hose includes three quick connect fittings—one female and two male connectors—allowing for modular assembly and secure attachment to the cooling system.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Mercedes-Benz E350 and E550
  • Resolving coolant leaks caused by deteriorated or damaged hoses
  • Addressing overheating issues related to compromised coolant flow
  • Upgrading to a molded hose with quick connectors for easier maintenance
  • Ensuring proper coolant circulation to prevent engine damage

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51420, ensure the vehicle is cool and the cooling system is depressurized. Verify that the quick connect fittings align properly with the corresponding connectors on the vehicle. Avoid twisting or stretching the hose during installation to maintain the integrity of the molded shape. Inspect all connections for secure fitment to prevent leaks.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51420 to meet strict quality standards, using durable materials designed for long service life. While specific warranty details are not provided, Gates products typically adhere to industry standards for reliability and performance in automotive cooling systems.

BrandGates
Part Number51420
PositionMolded Coolant Hose, Upper
MaterialEpdm, plastic, steel
End 1 Inside Diameter1.4
End 1 Inside Diameter36
End 2 Inside Diameter1.4
End 2 Inside Diameter36
Contains SpringNo
Centerline Length24
Centerline Length610
Branch Quantity0
9839Yes
98453
Modular ComponentsFemale quick connector, 2 henn quick connectors
Modular ComponentsFemale quick connector, 2 male quick connectors
Modular HoseYes
MoldedYes
Number of Quick Connect Fittings3

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008Mercedes-BenzE3503.5LV6GASUpperW/PZEV Emissions; Molded Coolant Hose
2007Mercedes-BenzE3503.5LV6GASUpperW/PZEV Emissions; Molded Coolant Hose
2007Mercedes-BenzE5505.5LV8GASUpperW/PZEV Emissions; Molded Coolant Hose
2006Mercedes-BenzE3503.5LV6GASUpperW/PZEV Emissions; 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:

211501778224820L51420R28541

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