Gates 51363 Radiator Coolant Hose - Lower

Reliable Radiator Coolant Hose for Audi A4 and A4 Quattro

The Gates Molded Coolant Hose 51363 is engineered to meet the cooling system demands of Audi A4 and A4 Quattro models. Designed with durable materials and precise dimensions, this radiator coolant hose ensures efficient coolant flow and system integrity.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• Molded design with a centerline length of 14.5 inches (368 mm)
• End 1 inside diameter: 1.2 inches (30 mm); End 2 inside diameter: 1.25 inches (32 mm)
• Includes one branch with modular components: female quick connector, bleeder valve, and protective sleeve
• Contains one quick connect fitting for secure attachment

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that integrate molded shapes and modular components to fit specific vehicle cooling systems. This product line emphasizes compatibility and ease of installation, providing hoses that include features such as quick connectors and bleeder valves to maintain optimal coolant circulation and system pressure.

Detailed Product Description

The Gates 51363 radiator coolant hose is molded to exact specifications for Audi A4 and A4 Quattro vehicles, ensuring a precise fit and reliable performance. Made from EPDM rubber combined with plastic and steel reinforcements, this hose withstands high temperatures and resists degradation from coolant chemicals. The hose features a centerline length of 14.5 inches (368 mm) and two different inside diameters at each end (1.2 inches/30 mm and 1.25 inches/32 mm) to match the vehicle’s cooling system connections. The inclusion of a branch with a female quick connector and bleeder valve facilitates efficient coolant flow and system bleeding, while the protective sleeve adds durability against abrasion and environmental factors.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Audi A4 and A4 Quattro
• Resolving coolant leaks caused by hose degradation or damage
• Maintaining proper coolant flow and pressure within the radiator system
• Preventing overheating issues related to compromised hose integrity
• Facilitating coolant system bleeding with integrated bleeder valve

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to avoid burns. Verify the hose orientation matches the original, paying attention to the molded shape and branch location. Use the quick connect fitting to secure the hose firmly, and check for any coolant leaks after installation. The protective sleeve should be positioned to prevent abrasion against engine components.

Quality Assurance

Gates Molded Coolant Hose 51363 is manufactured to meet OEM specifications for Audi A4 and A4 Quattro models. The use of EPDM, plastic, and steel materials ensures durability and resistance to heat and chemicals. While specific warranty details are not provided, Gates products typically adhere to strict quality control standards to support reliable vehicle operation.