Gates 21576 Radiator Coolant Hose - Lower

Reliable Radiator Coolant Hose for Buick and Chevrolet Vehicles

The Gates Molded Coolant Hose 21576 is engineered to provide dependable cooling system performance for select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed with precision molding and durable EPDM material, this radiator coolant hose ensures a secure fit and long-lasting service life.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and leak prevention
• Centerline length of 16.6 inches (422 mm) for accurate installation
• Consistent inside diameter of 1.5 inches (38 mm) on both ends
• Compatible with multiple GM models including Buick Century and Chevrolet Celebrity

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 optimal coolant flow and resist common issues such as cracking or collapsing under pressure. The 21576 part number is part of this line, offering a molded radiator coolant hose solution tailored for specific GM vehicles.

Product Details and Specifications

This radiator coolant hose features a molded construction using EPDM (ethylene propylene diene monomer) rubber, known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1.5 inches (38 mm), ensuring compatibility with standard radiator fittings. The hose measures 16.6 inches (422 mm) in centerline length, providing a precise fit for the intended vehicle applications. It does not contain any internal springs or quick connect fittings, simplifying installation and maintenance.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Buick Century and Chevrolet Celebrity models
• Addressing coolant leaks caused by hose deterioration or swelling
• Preventing overheating issues due to compromised coolant flow
• Restoring proper coolant circulation in Oldsmobile Cutlass and Pontiac Trans Sport vehicles
• Ensuring reliable cooling system performance in Chevrolet Lumina APV and Silhouette vans

Installation Notes and Tips

Before installation, verify the hose dimensions and compatibility with your vehicle model. Ensure the cooling system is cool and depressurized to avoid injury. Remove the old hose carefully, inspecting the radiator and engine fittings for corrosion or damage. Install the Gates Molded Coolant Hose 21576 by aligning the molded shape with the vehicle’s coolant routing. Secure hose clamps firmly but avoid overtightening to prevent hose damage. After installation, refill the cooling system and check for leaks during engine warm-up.

Quality Assurance and Warranty

Gates Molded Coolant Hoses are manufactured to meet or exceed OEM specifications, ensuring durability and reliable performance. The EPDM material and molded design contribute to resistance against heat, pressure, and chemical exposure common in automotive cooling systems. While specific warranty details may vary, Gates typically offers coverage against defects in material and workmanship. Consult product documentation or authorized distributors for exact warranty terms related to part number 21576.