Gates 42420 Engine Water Pump - Main

Engine Water Pump Overview

Gates 42420 is a standard engine water pump for select Audi, Porsche, and Volkswagen applications. It uses a cast aluminum housing, a plastic impeller, and an accessory-belt drive layout for direct cooling-system service.

Fits 2011-2018 Porsche Cayenne, N/A. Fits 2017 Audi S5, N/A. Fits 2013-2017 Porsche Panamera, N/A. Fits 2015 Audi Q5, Main, Jan. 30, 2015 & Older. Fits 2015 Audi S4, Main, Jan. 30, 2015 & Older. Fits 2015 Audi S5, Main, Jan. 30, 2015 & Older. Fits 2015 Audi SQ5, Main, Jan. 30, 2015 & Older. Fits 2013-2014 Audi Q5, Main. Fits 2013-2014 Audi S4, Main. Fits 2014 Audi SQ5, Main. Fits 2011-2014 Volkswagen Touareg, N/A. Fits 2012-2013 Audi A6 Quattro, Main. Fits 2012-2013 Audi A7 Quattro, Main. Fits 2013 Audi A8 Quattro, Main.

Key Features

• Cast aluminum housing for durable cooling-system service.
• Plastic impeller with reverse rotation.
• Accessory belt driven, not timing belt driven.
• Pulley included for a complete pump assembly.
• Supplied with a rubber gasket.

Detailed Description

Gates Water Pump (Standard) 42420 is built for vehicles that use an accessory-belt-driven cooling pump rather than a timing-belt-driven design. The pump is manufactured with premium alloy materials and is 100 percent function tested for seals and bearings, then leak tested at both the casting and assembled pump stages. This part cross-references Dorman - HELP 42420 for the same application.

For buyers searching for an Audi Q5 water pump, Audi S4 water pump, or Porsche Cayenne water pump, this part number 42420 provides a direct replacement option within the listed applications. It also serves fitment needs for Audi A6 Quattro and Audi A7 Quattro cooling-system service where the cataloged configuration matches.

What It Helps Address

• Coolant circulation problems caused by a worn pump.
• Leaks from a failing pump housing or seal area.
• Noisy operation from worn bearings.
• Cooling-system service on reverse-rotation, accessory-belt-driven applications.
• Replacement needs for listed Audi, Porsche, and Volkswagen models.

Installation Notes

Confirm the vehicle build date and cooling-system configuration before ordering, especially for 2015 Audi applications with the Jan. 30, 2015 cutoff. Verify reverse rotation, accessory-belt drive, and the listed fitment notes against the original pump before installation. Part number 42420 should be matched to the cataloged application exactly.

Quality Assurance

Gates tests each new water pump for seal and bearing function and performs leak testing on both the casting and assembled unit. The Water Pump (Standard) line focuses on OE-quality fit and consistent cooling-system service.