Gates 21345 Radiator Coolant Hose - Upper

Overview of Gates Molded Coolant Hose 21345

The Gates Molded Coolant Hose 21345 is designed for reliable cooling system performance in select Chevrolet, GMC, and Pontiac vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for models like the Camaro, Firebird, S10, S10 Blazer, S15, and S15 Jimmy.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and leak prevention
• End 1 inside diameter: 1.26 inches (32 mm)
• End 2 inside diameter: 1.5 inches (38 mm)
• Centerline length of 21.6 inches (549 mm) for accurate routing
• Contains no spring or quick connect fittings
• Compatible with Chevrolet Camaro, GMC S15, Pontiac Firebird, and related models

Details on the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that are molded to exact specifications. This approach eliminates the need for multiple hose clamps and reduces the risk of leaks by providing a secure, factory-style fit. The 21345 part number exemplifies this line’s commitment to durability and fitment accuracy, making it suitable for various GM vehicles requiring reliable radiator coolant hoses.

Product Description and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded construction ensures the hose maintains its shape and fit over time, reducing the chance of coolant leaks. With an inside diameter of 1.26 inches (32 mm) on one end and 1.5 inches (38 mm) on the other, it accommodates specific radiator and engine connections. The centerline length of 21.6 inches (549 mm) matches OEM routing requirements for proper coolant flow in Chevrolet Camaro, GMC S10 Blazer, and Pontiac Firebird models.

Common Applications and Problem Solving

• Replacement of cracked or leaking radiator coolant hoses
• Restoring proper coolant flow in Chevrolet Camaro and GMC S15 cooling systems
• Addressing hose swelling or softening due to heat exposure
• Eliminating coolant leaks caused by deteriorated or ill-fitting hoses
• Maintaining engine temperature regulation in Pontiac Firebird and S10 Jimmy vehicles

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to prevent burns
• Inspect hose connections and radiator fittings for corrosion or damage
• Use appropriate clamps to secure the molded hose without over-tightening
• Verify the hose routing matches OEM specifications to avoid kinks or stress points
• Check for leaks after installation by running the engine and monitoring coolant flow

Quality Assurance and Warranty

Gates Molded Coolant Hose 21345 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to long service life under normal operating conditions. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or authorized distributors for exact warranty terms.