Gates 21366 Radiator Coolant Hose - Lower - Engine To Pipe or Lower - Pipe To Water Pump

Reliable Radiator Coolant Hose for Buick, Cadillac, Oldsmobile, and Pontiac

The Gates Molded Coolant Hose 21366 is engineered to provide dependable cooling system performance for select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. Designed with precision and durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for your vehicle's engine.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure connections
• End 1 and End 2 inside diameter: 1.26 inches (32 mm)
• Centerline length of 7 inches (178 mm) for accurate fitment
• Contains no internal spring, ensuring smooth coolant flow
• Compatible with multiple Buick, Cadillac, Oldsmobile, and Pontiac models

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 degradation from heat and automotive fluids, making it suitable for various cooling system applications. The 21366 part benefits from this molded construction, providing a reliable and precise fit for the specified vehicle models.

Product Details and Specifications

This radiator coolant hose features an EPDM (ethylene propylene diene monomer) rubber construction, known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1.26 inches (32 mm), ensuring compatibility with the vehicle's cooling system fittings. The hose has a centerline length of 7 inches (178 mm), designed to fit specific routing paths without modification. The molded design enhances durability and fitment accuracy, while the absence of an internal spring allows for unobstructed coolant flow.

Compatible Vehicles and Applications

• Buick Firenza
• Cadillac SRX, STS, XLR
• Oldsmobile J2000, J2000 Sunbird, Firenza
• Pontiac Grand Am, Sunbird, Skyhawk

This hose is intended for use in the radiator coolant system to maintain proper engine temperature and prevent overheating.

Common Issues Addressed by This Radiator Coolant Hose

• Replacement of cracked or leaking radiator coolant hoses
• Restoring proper coolant flow to prevent engine overheating
• Eliminating coolant leaks caused by hose degradation or swelling
• Ensuring secure and precise hose fitment to avoid coolant loss
• Maintaining system integrity in older Buick, Cadillac, Oldsmobile, and Pontiac models

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Verify the hose dimensions and fitment against the vehicle’s original hose. The molded design of the Gates 21366 hose allows for straightforward installation without bending or modification. Use appropriate clamps to secure the hose ends and check for leaks after installation. Regular inspection of the cooling system hoses is recommended to maintain optimal performance.

Quality Assurance and Warranty

Gates Molded Coolant Hose 21366 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded construction provide resistance to heat, pressure, and automotive fluids. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Buick, Cadillac, Oldsmobile, and Pontiac vehicles.