Vaico V20-50013 Engine Water Pump

Vaico Engine Water Pump for BMW 318i and Z3

The Vaico V20-50013 engine water pump is a mechanical cooling system component built with a metal impeller and supplied without housing. It includes gaskets/seals and a water pump seal ring for service-ready replacement on select BMW applications, including BMW 318i, 318is, 318ti, and Z3 models.

Key Features

• Metal impeller construction for mechanical coolant circulation
• Housing type: without housing
• Operating mode: mechanical
• Includes gaskets/seals
• Includes water pump seal ring
• Dimensions: 135 mm height, 125 mm length, 135 mm width
• Part number: V20-50013

Product Details

VAICO V20-50013 is an engine water pump for the cooling system on select BMW 3 Series and Z3 applications. The metal impeller and mechanical design support coolant flow through the engine, while the included seals and seal ring support a proper service replacement. This part cross-references Pronto PA5403 for the same application. If you are replacing a BMW 318i water pump or servicing a BMW Z3 cooling system, V20-50013 is built to match the listed OE-style application requirements.

What This Water Pump Helps Address

• Coolant circulation issues caused by a worn pump
• Engine overheating related to reduced coolant flow
• Coolant seepage at the pump sealing surfaces
• Noise or bearing wear from an aging mechanical pump
• Cooling system service on BMW 318i, 318is, 318ti, and Z3 models

Installation Notes and Tips

Verify engine fitment by year, model, and OE reference before installation. Inspect the mating surfaces, replace degraded coolant, and confirm the belt drive and surrounding cooling components are in good condition. Because this pump is supplied without housing, reuse or replacement of the housing depends on the vehicle application and service procedure. Fits 1991-1998 BMW 318i, N/A; Fits 1991-1997 BMW 318is, N/A; Fits 1995-1999 BMW 318ti, N/A; Fits 1996-1997 BMW Z3, N/A; Fits 1998-1999 BMW 318is, N/A; Fits 1999 BMW 318i, N/A.

Quality Assurance

VAICO parts are cataloged for OE-style service applications and are identified here by part number V20-50013 for accurate ordering and fitment verification. Confirm the listed BMW application and OE reference PA5403 before installation.