Coolant Flange Aluminum – 06A 121 121C

Description

Product Description

The 06A121121C Coolant Flange is an OE‑style replacement component used on select Volkswagen and Audi 4‑cylinder engines (commonly associated with 1.8T applications, depending on engine code and model year). This rigid coolant flange mounts to the engine and directs coolant between the engine block/cylinder head and the radiator or hose assembly, ensuring proper coolant flow and stable engine operating temperature.

Unlike plastic flanges, this style of metal coolant flange is designed to withstand high temperatures and continuous coolant flow. However, corrosion, gasket wear, or damaged sealing surfaces can still cause leaks over time. Replacing a leaking or corroded flange with a new 06A121121C helps restore proper coolant circulation and prevents coolant loss and overheating.

• OEM reference: 06A 121 121C
• OE‑style metal coolant flange for improved durability
• Designed to handle high temperatures and cooling system pressure
• Precision‑formed for correct fit, angle, and mounting alignment
• Helps maintain proper coolant flow and engine temperature
• Direct‑fit replacement; no modifications required

Applications

Used on select Volkswagen/Audi vehicles that specify coolant flange part number 06A121121C. Common on various 1.8T engines.

(Fitment varies by model year and engine code—confirm compatibility via VIN or parts catalog.)

Service Notes

• Always replace the O‑ring or gasket at the mounting flange during installation.
• Inspect connected coolant hoses for swelling or cracking and replace if needed.
• Refill with VW/Audi‑approved coolant and properly bleed the cooling system after service.

Cross Reference

• 06A 121 121
• 06A 121 121A
• 06A 121 121B

Additional information

No fitment data available.