Water Pump & Thermostat – 06H 121 026DD(Pierburg)

Description

Product Description

The 06H 121 026DD Thermostat & Water Pump Assembly by Pierburg is an OE‑quality replacement for many VW and Audi 2.0T TSI/TFSI EA888 engines. This integrated module combines the mechanical water pump and electronically controlled thermostat in one compact housing, ensuring fast warm‑up, stable operating temperature, and reliable coolant circulation.

Factory units on these engines are known to develop coolant leaks, cracked housings, and thermostat faults over time. Upgrading to this Pierburg assembly restores cooling system integrity and protects your turbocharged engine from overheating and fault codes.

• OEM reference: 06H 121 026DD
• Manufacturer: Pierburg – premium OE supplier
• Integrated water pump + thermostat assembly
• Direct bolt‑on design with factory hose connections and sensor ports
• Includes required seals/O‑rings (kit contents may vary by supplier listing)
• Restores correct coolant flow and temperature regulation
• Built to OE specifications for fit, performance, and durability

Applications

Used on many VW & Audi 2.0T EA888 models, including (but not limited to):

• Volkswagen: Golf / GTI, Jetta, Passat, Tiguan, CC, Beetle, etc.
• Audi: A3, A4, A5, Q3, Q5, TT and other models with 2.0T TSI/TFSI engines

Always confirm compatibility by VIN or by matching the original part number on the existing unit.

Service Notes

• Refill with approved VW/Audi G12++ or G13 coolant.
• Bleed the cooling system thoroughly after installation.
• Inspect the accessory belt and tensioner while servicing the front of the engine.

Cross Reference

• 06H 121 026AF
• 06H 121 026BE
• 06H 121 026BF
• 06H 121 026CC
• 06H 121 026CF
• 06H 121 026CP
• 06H 121 026CQ
• 06H 121 026DC
• 06H 121 026DN
• 06H 121 026DR
• 06H 121 026ED

Additional information

No fitment data available.