Gates 21767 Radiator Coolant Hose - Lower

Reliable Radiator Coolant Hose for Chevrolet and GMC Trucks

The Gates Molded Coolant Hose 21767 is designed to provide durable and precise coolant flow management for select Chevrolet and GMC truck models. Engineered with quality materials, this radiator coolant hose ensures consistent performance and fitment for your vehicle's cooling system.

• Constructed from EPDM and plastic for heat and chemical resistance
• Molded design for exact fit and secure connections
• End 1 inside diameter: 1.81 inches (46 mm)
• End 2 inside diameter: 2.13 inches (54 mm)
• Centerline length: 28.3 inches (719 mm)
• Contains no spring or quick connect fittings
• Compatible with Chevrolet and GMC C1500, C2500, C3500, K1500, K2500, and K3500 models

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that are molded to exact specifications for reliable sealing and fitment. This product line uses high-quality EPDM and plastic materials to withstand the thermal and chemical demands of automotive cooling systems. The molded construction eliminates the need for additional clamps or fittings, reducing potential leak points and simplifying installation.

Product Details and Specifications

The Gates 21767 radiator coolant hose features a molded design with two different inside diameters at each end, measuring 1.81 inches (46 mm) and 2.13 inches (54 mm) respectively. Its centerline length of 28.3 inches (719 mm) ensures proper routing within the engine bay. The hose does not contain any springs or quick connect fittings, making it a straightforward replacement part. The use of EPDM rubber and plastic materials provides resistance to heat, ozone, and coolant chemicals, contributing to long service life in Chevrolet and GMC truck cooling systems.

Common Applications and Problem Solving

• Replacement for cracked or leaking radiator coolant hoses
• Restores proper coolant flow in Chevrolet and GMC C/K series trucks
• Prevents overheating caused by coolant leaks or hose failure
• Addresses swelling or softening of old hoses due to heat exposure
• Ensures secure coolant system connections without spring or quick connect fittings

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid burns from hot coolant. Verify the hose dimensions and fitment with your specific Chevrolet or GMC truck model. The molded design allows for direct replacement without modification. Inspect hose clamps and replace if worn to maintain a secure seal. Properly route the hose to avoid contact with moving parts or sharp edges that could cause premature wear.

Quality Assurance and Warranty

Gates Molded Coolant Hose 21767 is manufactured to meet or exceed OEM specifications for durability and performance. The use of EPDM and plastic materials ensures resistance to heat and coolant chemicals. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship when used as intended.