GENUINE VOLKSWAGEN WATER PUMP ;  MADE IN GERMANY

1 PC OE#   03H121008K << 03H121008M  GENUINE VW WATER PUMP

100% GENUINE VW PART
*** IMPORTANT: CLICK SEND SELLER MESSAGE
       PULLEY IS SMOOTH; NO GROOVES
       SEND MESSAGE WHETHER YOU NEED GROOVES OR NO GROOVES PULLEY

2018-2019 ATLAS  3.6L  V6
2011-2016 TOUAREG  3.6L V6

The genuine part number 03H 121 008 M is a Main Engine Water Pump manufactured by Volkswagen Group (VAG).
Product Overview
This original equipment manufacturer (OEM) part is responsible for circulating coolant through the engine block to regulate operating temperatures. The assembly typically comes as a complete unit and includes the following integrated components:
  • Water Pump Gasket / Seal
  • Water Pump Pulley 
Vehicle Compatibility
This part is specifically engineered for Volkswagen models equipped with the 3.6L V6 (VR6) engine: [1, 2]
  • Volkswagen Atlas: Model years 2018–2023
  • Volkswagen Atlas Cross Sport: Model years 2020–2023
  • Volkswagen Touareg: Model years 2011–2017 
Part Numbers & Supersessions
Automotive manufacturers frequently update part revisions. This specific part identifier shares compatibility or replaces the following older and alternative factory part numbers: [1, 2]
Do not confuse the modern 3.6L VR6 water pump with older generation Volkswagen VR6 engines (like the older 2.8L or 3.2L variants):
  • 3.6L VR6 (Your Engine): Features a smooth, flat-faced pulley because the backside of the serpentine belt drives it.
The Porsche part number PAB-121-008-A and the Volkswagen/Audi interchangeable part family 03H121008 (including suffixes A, B, D, H, K, and M) fit a very specific line of mid-to-large SUVs within the Volkswagen Automotive Group (VAG) family. [1]
Because they are engineered exclusively for the 3.6L 24v VR6 gasoline engine configured in a longitudinal layout, they fit the following vehicle list across all brands: [1, 2]
Porsche Fitment
  • Cayenne (Base / Platinum Edition Trims) – Model Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, and 2018
    • Engine: Naturally Aspirated 3.6L V6 (300 hp)
    • Note: This pump does not fit the Cayenne S Twin-Turbo 3.6L or Turbo V8 models. [1, 2, 3]
Volkswagen Fitment
  • Touareg (V6 / Lux / Executive / Sport / R-Line) – Model Years: 2011, 2012, 2013, 2014, 2015, 2016, and 2017
    • Engine: 3.6L VR6 FSI (280 hp) [1, 2]
  • Atlas (S / SE / SEL / R-Line / Launch Edition) – Model Years: 2018, 2019, 2020, 2021, 2022, and 2023
    • Engine: 3.6L VR6 FSI (276 hp) [1, 2, 3]
  • Atlas Cross Sport – Model Years: 2020, 2021, 2022, and 2023
    • Engine: 3.6L VR6 FSI [1, 2]
Important Fitment Notes
  • Audi and Passenger Cars: While older versions of the VW 3.6L VR6 engine were used in passenger cars like the Volkswagen Passat (B6/CC) or the Audi Q7 (4L chassis, 2007–2010), those older applications used a completely different block layout and accessory drive casting (Part family 03H121008C / 03H121008G). The specific PAB-121-008-A / 03H121008A series pump will not bolt up to pre-2011 vehicles.
For the Cayenne Base / Platinum Edition (3.6L Naturally Aspirated VR6):
If the vehicle is a base model with the Volkswagen-derived VR6 engine, the official Volkswagen part number is 03H121008H (superseded variants include 03H121008B, 03H121008D, and 03H121008K). The equivalent Porsche cross-reference number for this VR6 pump is PAB121008A (or 95810603300 through 95810603304). [1, 2, 3, 4]