HomeBelts and Cooling > Hoses and PipesGates 28203 Radiator Coolant Hose - Lower - Radiator To Thermostat
Part #: 28203

Gates 28203 Radiator Coolant Hose - Lower - Radiator To Thermostat

Lower - Radiator To Thermostat
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Durable Silicone Radiator Coolant Hose for Reliable Cooling

The Gates 45 Degree Molded Coolant Hose (Silicone) part number 28203 is engineered to provide dependable coolant flow in automotive cooling systems. Designed with premium materials and precise construction, this radiator coolant hose supports efficient engine temperature regulation for various vehicle makes and models.

  • Constructed from high-quality silicone for enhanced durability and flexibility
  • Premium 4-ply polyester-reinforced construction for strength and pressure resistance
  • 45-degree molded design for optimal fit and routing in tight engine compartments
  • Inside diameter of 3.5 inches (89 mm) on both ends for consistent coolant flow
  • Centerline length of 12 inches (305 mm) with equal 6-inch (152 mm) arm lengths
  • Wide operating temperature range from -65°F to +350°F (-54°C to +177°C) for extreme conditions

About the Gates 45 Degree Molded Coolant Hose (Silicone) Product Line

The Gates 45 Degree Molded Coolant Hose (Silicone) product line focuses on delivering molded silicone hoses designed to withstand high temperatures and pressures typical in modern cooling systems. This line emphasizes precise angles and reinforced construction to ensure compatibility and durability in demanding automotive environments. Part number 28203 exemplifies these qualities with its 45-degree molded shape and robust silicone material.

Technical Details and Construction

This radiator coolant hose features a premium 4-ply polyester reinforcement embedded within the silicone material, providing enhanced resistance to pressure and wear. The molded 45-degree angle allows for efficient coolant routing, reducing stress on connections and improving fitment in vehicles with limited space. Both ends have an inside diameter of 3.5 inches (89 mm), ensuring consistent coolant flow without restriction. The hose measures 12 inches (305 mm) in centerline length, with two equal arms of 6 inches (152 mm) each, making it suitable for specific radiator and engine configurations.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in vehicles requiring a 45-degree molded silicone hose
  • Addressing coolant leaks caused by deteriorated rubber hoses under high temperature conditions
  • Upgrading to a silicone hose for improved heat resistance and longer service life
  • Ensuring proper coolant flow in vehicles with tight engine bay layouts needing precise hose angles
  • Preventing hose collapse or deformation under pressure in demanding cooling system environments

Installation Notes and Tips

When installing the Gates 28203 radiator coolant hose, ensure the hose is properly seated on the radiator and engine fittings to prevent leaks. Use appropriate clamps rated for silicone hoses to secure connections firmly. Verify the 45-degree angle aligns with the vehicle’s coolant routing to avoid kinks or undue stress. Inspect surrounding components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Gates manufactures the 45 Degree Molded Coolant Hose (Silicone) with strict quality control standards to meet automotive industry requirements. The silicone material and reinforced construction provide reliable performance within the recommended operating temperature range of -65°F to +350°F (-54°C to +177°C). While specific warranty details are not provided, Gates products typically adhere to industry-standard warranties covering defects in materials and workmanship.

BrandGates
Part Number28203
MaterialSilicone
Working Temperature Range-65 deg. to +350 deg. f (-54 deg. c to +177 deg. c)
ConstructionPremium 4-ply polyester-reinforced
End 1 Inside Diameter3.5
End 1 Inside Diameter89
End 2 Inside Diameter3.5
End 2 Inside Diameter89
Centerline Length12
Centerline Length305
Arm Length152
Arm Length6
Angle45
9839Yes
Angle45
Arm Length 1 (in)6
Arm Length 1 (mm)152
Arm Length 2 (in)6
Arm Length 2 (mm)152
Centerline Length (in)12
Centerline Length (mm)305
ConstructionPremium 4-ply polyester-reinforced
Inside Diameter 1 (in)3.5
Inside Diameter 1 (mm)89
Inside Diameter 2 (in)3.5
Inside Diameter 2 (mm)89
MaterialSilicone
MoldedYes
Recommended Operating Temperature Range-65 deg. to +350 deg. f (-54 deg. c to +177 deg. c)

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

2820357356H19603

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