Vaico V20-1303 Engine Coolant Hose

Engine Coolant Hose for BMW Cooling Service

The Vaico V20-1303 engine coolant hose routes coolant from the water pipe to the water pump and is specified for backflow use in automatic transmission applications. It is a direct-fit cooling hose for select BMW 550i and BMW 650i models, built around the listed dimensions for proper routing and connection alignment.

Key Features

• Engine coolant hose for the cooling system
• Connects from the water pipe to the water pump
• Configured for backflow flow direction
• Length: 332 mm; height: 47 mm; width: 105 mm
• Fits automatic transmission applications
• Vaico V20-1303 replacement part

Fitment and Application

• Fits 2006-2010 BMW 550i, N/A. Grade: Aftermarket; Cooler To Pump; VAICO.
• Fits 2006-2010 BMW 650i, N/A. Grade: Aftermarket; Cooler To Pump; VAICO.

This part cross-references Dorman - HELP 47016 for the same application. It also cross-references Rein CHE0503 for the same application. The Vaico VAICO product line focuses on application-specific replacement components for European vehicle cooling and engine service needs, and this hose follows that approach with the listed BMW fitment and connection layout.

What This Hose Helps Address

• Coolant leakage at a cracked or aged hose
• Restricted coolant flow between the water pipe and water pump
• Softening, swelling, or collapse of the original hose
• Cooling system service on BMW 550i and BMW 650i models
• Backflow hose replacement in automatic transmission-equipped vehicles

Installation Notes and Tips

Verify the hose routing, connection points, and dimensions before installation. Match the part to the vehicle’s cooling layout and automatic transmission application, and inspect adjoining pipes, clamps, and seals for wear before reassembly. Confirm the BMW 550i or BMW 650i model year against the listed fitment before ordering.

Quality Assurance

Vaico replacement parts are cataloged for vehicle-specific fitment and dimensional accuracy. This V20-1303 hose is listed for 2006-2010 BMW 550i and 2006-2010 BMW 650i applications.