Cardone 5W-4006 Engine Auxiliary Water Pump - To Radiator

Engine Auxiliary Water Pump for Audi and Volkswagen

Cardone 5W-4006 is a brand new engine auxiliary water pump for the radiator circuit on select Audi and Volkswagen models. It uses upgraded internal components to improve durability, reduce friction, and help maintain steady coolant flow in demanding cooling-system applications.

Key Features

• Brand new auxiliary coolant pump with upgraded resin-impregnated bearings
• Improved rubber sealant helps reduce leak risk and support consistent flow
• 100% functionality tested for performance and reliability
• Mounting bracket included where required for OE-style service replacement
• Metal, plastic, and rubber construction for cooling-system use
• 1 connector with pin/male terminal configuration

Product Details

This Cardone Engine Auxiliary Water Pump is built for vehicles that use an auxiliary coolant pump to move coolant through the radiator circuit. The 5W-4006 is a direct-fit style replacement for applications such as the Audi Q3, Audi TT, Volkswagen Tiguan, Volkswagen GTI, Volkswagen Jetta, and related models listed in the fitment data. It cross-references Audi and Volkswagen part number 1K0965561J for the same application.

Cardone’s auxiliary coolant pump line focuses on upgraded service parts rather than reused hardware. The resin-impregnated bearings are used to reduce internal friction and extend service life, while the improved seal material is intended to help control seepage and maintain coolant movement under real-world operating conditions. The pump inlet and outlet pipe diameters are both 0.67 inch, and the unit is supplied as a new replacement component.

Common Problems This Part Can Address

• Auxiliary coolant pump failure causing reduced coolant circulation
• Coolant leakage at the pump housing or seal area
• Noise or bearing wear from a failing electric coolant pump
• Overheating concerns tied to poor radiator-side coolant flow
• Cooling-system performance issues on turbocharged or heat-sensitive applications

Installation Notes and Tips

Verify connector style, terminal count, inlet and outlet size, and mounting location before installation. This pump mounts to the radiator-side auxiliary cooling circuit and uses a single mounting hole with an included bracket where necessary. Confirm the vehicle’s original pump part number and compare it to the listed interchange before service. For Audi Q3, Audi TT, Volkswagen Tiguan, Volkswagen GTI, and Volkswagen Jetta applications, match the OE routing and electrical connection before final assembly.

Quality Assurance

Each unit is 100% functionality tested under varied conditions to check real-world reliability before release. Cardone backs this auxiliary coolant pump line with a limited lifetime warranty.