Gates 23803 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for Efficient Cooling

The Gates Molded Coolant Hose 23803 is engineered to provide dependable coolant flow in your vehicle's cooling system. Designed with durable EPDM material, this radiator coolant hose ensures long-lasting performance and resistance to heat and chemicals.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and secure connections
• End 1 inside diameter: 1.31 inches (33 mm)
• End 2 inside diameter: 1.55 inches (39 mm)
• Centerline length: 24.4 inches (620 mm)
• Contains no internal spring for flexible routing
• Zero quick connect fittings and branch quantity for straightforward installation

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, reducing installation time and improving fitment accuracy. This product line is designed to meet or exceed OEM standards, providing reliable coolant transfer and maintaining system integrity under various operating conditions.

Detailed Product Description

The Gates Molded Coolant Hose part number 23803 is crafted 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 fits precisely between radiator and engine components, minimizing the risk of leaks or kinks. With an end 1 inside diameter of 1.31 inches (33 mm) and end 2 inside diameter of 1.55 inches (39 mm), this hose accommodates specific radiator and engine connections. Its 24.4-inch (620 mm) centerline length allows for proper routing within the engine bay without the need for additional modifications.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in vehicles such as Ford F-150 and Chevrolet Silverado
• Resolving coolant leaks caused by hose degradation or improper fit
• Preventing overheating due to restricted or collapsed hoses
• Maintaining optimal coolant flow for engine temperature regulation
• Eliminating coolant contamination from hose material breakdown

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to avoid burns. Verify the hose orientation matches the molded shape for proper fitment. Use appropriate clamps to secure each end without over-tightening, which can damage the hose. Inspect surrounding components for wear or damage during installation. The absence of quick connect fittings means standard hose clamps are required for installation.

Quality Assurance and Warranty

Gates Molded Coolant Hose 23803 is manufactured to meet stringent quality standards, ensuring durability and reliable performance. The EPDM material and molded design contribute to extended service life under typical operating conditions. Please refer to Gates' official warranty policy for specific coverage details.