HomeBelts and Cooling > Hoses and PipesGates 23436 Radiator Coolant Hose - Upper
Part #: 23436

Gates 23436 Radiator Coolant Hose - Upper

Molded Coolant Hose, Upper
⚙️ 15 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Upper
🚗Fitment: Chevrolet, GMC, and Hummer, Canyon, Colorado, H3, and H3T
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Reliable Radiator Coolant Hose for Chevrolet, GMC, and Hummer

The Gates Molded Coolant Hose 23436 is engineered to provide dependable cooling system performance for select Chevrolet, GMC, and Hummer vehicles. 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 secure connections
  • Centerline length of 13.5 inches (343 mm) for accurate replacement
  • End 1 and End 2 inside diameters both measure 1.31 inches (33 mm)
  • Compatible with Chevrolet Canyon, Colorado, GMC Canyon, Colorado, and Hummer H3, H3T models
  • Does not contain a spring or quick connect fittings

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle cooling system layouts. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or improper fitment. The molded construction of part number 23436 ensures a precise fit for the intended Chevrolet, GMC, and Hummer models, maintaining optimal coolant flow and system integrity.

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 1.31 inches (33 mm), providing a consistent seal with the radiator and engine connections. The centerline length measures 13.5 inches (343 mm), matching OEM specifications for proper routing and fitment. The hose does not include any springs or quick connect fittings, reflecting a straightforward replacement part for the cooling system.

Common Applications and Problem Solving

  • Replacement of cracked or leaking radiator coolant hoses in Chevrolet Canyon and Colorado models
  • Addressing coolant leaks in GMC Canyon and Colorado vehicles
  • Restoring proper coolant flow in Hummer H3 and H3T cooling systems
  • Preventing overheating caused by deteriorated or collapsed hoses
  • Ensuring secure coolant system connections without spring or quick connect fittings

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 23436, ensure the engine is cool to avoid burns from hot coolant. Verify that the hose routing matches the original to prevent kinks or interference with other engine components. Use appropriate clamps to secure both ends of the hose firmly. Inspect adjacent hoses and cooling system components for wear during replacement to maintain overall system reliability.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 23436 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, Gates products generally come with manufacturer-backed quality assurance to support reliable vehicle operation.

BrandGates
Part Number23436
PositionMolded Coolant Hose, Upper
MaterialEpdm
End 1 Inside Diameter1.31
End 1 Inside Diameter33
End 2 Inside Diameter1.31
End 2 Inside Diameter33
Contains SpringNo
Centerline Length13.5
Centerline Length343
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2012ChevroletColorado5.3LV8GASUpperMolded Coolant Hose
2012GMCCanyon5.3LV8GASUpperMolded Coolant Hose
2011ChevroletColorado5.3LV8GASUpperMolded Coolant Hose
2011GMCCanyon5.3LV8GASUpperMolded Coolant Hose
2010ChevroletColorado5.3LV8GASUpperMolded Coolant Hose
2010GMCCanyon5.3LV8GASUpperMolded Coolant Hose
2010HummerH35.3LV8FLEXUpperMolded Coolant Hose
2010HummerH35.3LV8GASUpperMolded Coolant Hose
2010HummerH3T5.3LV8FLEXUpperMolded Coolant Hose
2010HummerH3T5.3LV8GASUpperMolded Coolant Hose
2009ChevroletColorado5.3LV8GASUpperMolded Coolant Hose
2009GMCCanyon5.3LV8GASUpperMolded Coolant Hose
2009HummerH35.3LV8GASUpperMolded Coolant Hose
2009HummerH3T5.3LV8GASUpperMolded Coolant Hose
2008HummerH35.3LV8GASUpperMolded 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:

144240121617222634M23436258020062587161166121

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