Gates 20683 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for Buick and Cadillac Vehicles

The Gates Molded Coolant Hose 20683 is engineered to provide dependable cooling system performance for select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility under demanding engine conditions.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and secure connections
• Centerline length of 37.5 inches (953 mm) for accurate installation
• 1.5 inch (38 mm) inside diameter on both ends for standard coolant flow
• Compatible with multiple GM models including Buick LeSabre and Cadillac DeVille

About the Gates 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 is designed to maintain consistent coolant flow and resist deformation, making it suitable for vehicles requiring precise hose routing. Part number 20683 is part of this line, ensuring a molded fit for improved reliability in cooling systems.

Product Details and Specifications

This radiator coolant hose features a molded construction using EPDM material, known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1.5 inches (38 mm), providing a uniform connection size. The hose measures 37.5 inches (953 mm) in centerline length, making it suitable for specific routing requirements in the cooling system. It does not contain any internal springs or quick connect fittings, simplifying maintenance and replacement.

Compatible Vehicles and Applications

• Buick models: Century, LeSabre, Skylark
• Cadillac models: DeVille, Eldorado, Fleetwood
• Oldsmobile models: Cutlass, Cutlass Supreme, Delta 88
• Pontiac models: Catalina, Grand LeMans, Phoenix, Regal

This hose is designed to replace original equipment in these vehicles, ensuring proper coolant flow and system integrity.

Common Issues Addressed by This Radiator Coolant Hose

• Coolant leaks due to cracked or worn hoses
• Overheating caused by restricted or collapsed hoses
• Coolant contamination from deteriorated hose material
• Improper fitment leading to coolant system pressure loss
• Replacement of aged or damaged molded hoses in GM vehicles

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to prevent burns. Verify the hose routing matches the original configuration to avoid kinks or interference with other engine components. Use appropriate clamps to secure the hose ends firmly. Inspect adjacent cooling system components during installation for signs of wear or damage.

Quality Assurance and Warranty

Gates Molded Coolant Hose 20683 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material provides resistance to heat and coolant chemicals, contributing to long service life. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship.