HomeBelts and Cooling > Hoses and PipesGates 22581 Radiator Coolant Hose - Lower
Part #: 22581

Gates 22581 Radiator Coolant Hose - Lower

Molded Coolant Hose, Lower
32 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, Lower
Fitment: Mercedes-Benz, ML350, ML500, ML320, ML55 AMG, and ML430
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 22581

The Gates Molded Coolant Hose 22581 is designed specifically for Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 models. This radiator coolant hose is engineered to provide reliable coolant flow and maintain optimal engine temperature under various driving conditions.

  • Constructed from durable EPDM material for heat and chemical resistance
  • Molded design ensures precise fit and secure connections
  • End 1 inside diameter: 1.38 inches (35 mm)
  • End 2 inside diameter: 1.62 inches (41 mm)
  • Centerline length: 16.3 inches (414 mm)
  • Contains no internal spring, reducing potential failure points
  • Compatible with select Mercedes-Benz ML-Class models

About the 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 enhances installation accuracy and reduces the risk of leaks or hose damage. The 22581 part benefits from this molded design, ensuring a precise fit for the cooling system of Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 vehicles.

Detailed Product Description

The Gates Molded Coolant Hose 22581 is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The hose features two different inside diameters—1.38 inches (35 mm) on one end and 1.62 inches (41 mm) on the other—allowing it to connect seamlessly between components with varying sizes. With a centerline length of 16.3 inches (414 mm), this molded hose fits precisely within the engine bay layout of compatible Mercedes-Benz ML-Class models. The absence of an internal spring reduces the risk of hose collapse or failure under pressure, contributing to long-term durability.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500
  • Resolving coolant leaks caused by hose degradation or improper fit
  • Preventing overheating issues due to compromised coolant flow
  • Eliminating hose collapse or kinking in the cooling system
  • Maintaining proper engine temperature regulation for optimal performance

Installation Notes and Tips

  • Ensure the engine is cool before removing the old hose to avoid burns
  • Verify the hose orientation matches the molded shape for proper fit
  • Use appropriate clamps to secure the hose ends without over-tightening
  • Inspect surrounding components for wear or damage during installation
  • Check for leaks after installation by running the engine and monitoring coolant flow

Quality Assurance and Warranty

Gates Molded Coolant Hose 22581 is manufactured to meet or exceed OEM specifications for Mercedes-Benz vehicles. The EPDM material and molded construction provide resistance to heat, pressure, and automotive fluids, ensuring reliable performance. While specific warranty details may vary, Gates typically offers coverage against defects in material and workmanship, supporting the product's durability and fitment accuracy.

BrandGates
Part Number22581
PositionMolded Coolant Hose, Lower
0
Yes
Branch Quantity0
Centerline Length16.3
Centerline Length414
Contains SpringNo
End 1 Inside Diameter1.38
End 1 Inside Diameter35
End 2 Inside Diameter1.62
End 2 Inside Diameter41
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005Mercedes-BenzML3503.7LV6GASLowerMolded Coolant Hose
2005Mercedes-BenzML5005.0LV8GASLowerMolded Coolant Hose
2004Mercedes-BenzML3503.7LV6GASLowerMolded Coolant Hose
2004Mercedes-BenzML5005.0LV8GASLowerMolded Coolant Hose
2003Mercedes-BenzML3203.2LV6GASLowerMolded Coolant Hose
2003Mercedes-BenzML3503.7LV6GASLowerMolded Coolant Hose
2003Mercedes-BenzML5005.0LV8GASLowerMolded Coolant Hose
2003Mercedes-BenzML55 AMG5.4LV8GASLowerMolded Coolant Hose
2003Mercedes-BenzML55 AMG5.5LV8GASLowerMolded Coolant Hose
2002Mercedes-BenzML3203.2LV6GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2002Mercedes-BenzML3203.2LV6GASLowerW/O Eng. Preheater; Molded Coolant Hose
2002Mercedes-BenzML5005.0LV8GASLowerMolded Coolant Hose
2002Mercedes-BenzML55 AMG5.4LV8GASLowerMolded Coolant Hose
2002Mercedes-BenzML55 AMG5.5LV8GASLowerMolded Coolant Hose
2001Mercedes-BenzML3203.2LV6GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2001Mercedes-BenzML3203.2LV6GASLowerW/O Eng. Preheater; Molded Coolant Hose
2001Mercedes-BenzML4304.3LV8GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2001Mercedes-BenzML4304.3LV8GASLowerW/O Eng. Preheater; Molded Coolant Hose
2001Mercedes-BenzML55 AMG5.5LV8GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2001Mercedes-BenzML55 AMG5.5LV8GASLowerW/O Eng. Preheater; Molded Coolant Hose
2000Mercedes-BenzML3203.2LV6GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2000Mercedes-BenzML3203.2LV6GASLowerW/O Eng. Preheater; Molded Coolant Hose
2000Mercedes-BenzML4304.3LV8GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2000Mercedes-BenzML4304.3LV8GASLowerW/O Eng. Preheater; Molded Coolant Hose
2000Mercedes-BenzML55 AMG5.5LV8GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
2000Mercedes-BenzML55 AMG5.5LV8GASLowerW/O Eng. Preheater; Molded Coolant Hose
1999Mercedes-BenzML3203.2LV6GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
1999Mercedes-BenzML3203.2LV6GASLowerW/O Eng. Preheater; Molded Coolant Hose
1999Mercedes-BenzML4304.3LV8GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
1999Mercedes-BenzML4304.3LV8GASLowerW/O Eng. Preheater; Molded Coolant Hose
1998Mercedes-BenzML3203.2LV6GASLowerW/Eng. Preheater; Cut to fit; Molded Coolant Hose
1998Mercedes-BenzML3203.2LV6GASLowerW/O Eng. Preheater; 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:

163501058216350112821635013482163501418222401M22581667006724867251720079214CHR0054RCHR0061RE72007R28243R28386

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