Auxiliary Water Pump – 059 121 012B (Genuine)

Description

Product Description

The Genuine Audi/VW Auxiliary Water Pump 059121012B is an OEM electric coolant pump used on many Audi and Volkswagen models, especially those with larger engines and complex cooling circuits. This pump assists the main water pump by circulating coolant through the turbocharger, heater core, or after‑run cooling system, helping control temperatures during and after engine operation.

A failing auxiliary pump can cause poor cabin heat at idle, reduced turbo cooling, after‑run fan faults, or overheating in heavy traffic. Replacing it with this factory original 059121012B pump restores correct coolant flow and protects sensitive components from heat‑related damage.

Features & Benefits

• OEM Part Number: 059 121 012B
• Brand: Genuine VW/Audi
• Electric auxiliary water pump for after‑run / supplemental coolant circulation
• Ensures proper cooling of turbocharger and heater circuit, especially at idle or after shut‑down
• Built to factory specifications for flow rate, noise level, and durability
• Direct plug‑and‑play replacement with OEM connectors and hose fittings

(Always confirm compatibility by VIN or by matching the part number on the existing pump before ordering.)

Service Notes

• Replace any brittle hoses or clamps connected to the pump.
• Use approved VW/Audi G12++/G13 coolant and bleed the system after service.
• Often replaced together with the main water pump or thermostat during major cooling system work.

Additional information