Gates 21284 Radiator Coolant Hose - Upper

Overview of Gates Molded Coolant Hose 21284

The Gates Molded Coolant Hose 21284 is designed for reliable cooling system performance in select Chevrolet and GMC trucks and SUVs. Engineered with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for vehicles like the Chevrolet Blazer and GMC C1500 Suburban.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure installation
• Centerline length of 24.1 inches (612 mm) for accurate routing
• Consistent inside diameter of 1.75 inches (44 mm) on both ends
• Compatible with multiple Chevrolet and GMC truck and SUV models

Detailed Product Description

This radiator coolant hose, part number 21284, is molded from EPDM (ethylene propylene diene monomer) rubber, a material known for its excellent resistance to heat, ozone, and coolant chemicals. The molded construction provides a precise shape that matches original equipment specifications, ensuring a secure and leak-free connection. Both ends of the hose have an inside diameter of 1.75 inches (44 mm), making it suitable for consistent coolant flow without restrictions. With a centerline length of 24.1 inches (612 mm), this hose fits the cooling system layout of various Chevrolet and GMC models, including the Blazer, C10, C1500, and their suburban variants.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on delivering hoses that are pre-formed to exact OEM specifications. This eliminates the need for bending or shaping during installation, reducing the risk of kinks or improper fitment. The molded design also enhances durability and longevity by maintaining consistent wall thickness and shape under operating conditions. The 21284 hose is part of this line, providing a reliable replacement option for cooling system maintenance on compatible Chevrolet and GMC vehicles.

Common Applications and Problem Solving

• Replacement of cracked or leaking radiator coolant hoses
• Resolving coolant flow restrictions caused by collapsed or swollen hoses
• Addressing overheating issues due to compromised hose integrity
• Preventing coolant leaks that can lead to engine damage
• Maintaining proper coolant circulation in Chevrolet Blazer and GMC C1500 Suburban models

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to avoid burns
• Inspect hose clamps and replace if worn or damaged for a secure seal
• Verify the hose orientation matches the original routing to prevent kinks
• Use a coolant-compatible lubricant on hose ends to ease installation
• After installation, check for leaks and proper coolant flow during engine warm-up

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21284 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 here, Gates products generally come with manufacturer-backed warranties covering defects in materials and workmanship. Always refer to the product packaging or official Gates documentation for exact warranty terms.