Features 1、Fitment: Replacement for A6 2.8L 2771CC V6 GAS DOHC Naturally Aspirated 1998‑2001; Replacement for A6 2.7L 2671CC V6 GAS DOHC Turbocharged 2000‑2004, etc. 2、OEM Number: Replacing manufacturer part number for reference is 078121121K. Please double check the part number of your item to ensure perfect fit. 3、Function: With a high level of accuracy and sensitivity, thermostat housing can effectively control the temperature of the engine and improve the safety of your vehicle. 4、Durable Material: Engine coolant thermostat housing is made of ABS materials, wearproof, high temperature resistant, not easy to break. 5、Direct Replacement: Manufactured based on the original factory specifications, cooling thermostat housing is a direct replacement for the old or broken one. Specification Item Type: Thermostat Housing Material: ABS OEM: 078121121K Fitment: Replacement for A6 2.8L 2771CC V6 GAS DOHC Naturally Aspirated 1998-2001 Replacement for A6 2.7L 2671CC V6 GAS DOHC Turbocharged 2000-2004 Replacement for A6 2.8L 2771CC V6 GAS DOHC Naturally Aspirated 1998-2001 Replacement for A6 2.8L 2771CC V6 GAS SOHC Naturally Aspirated 1998 Package List 1 x Thermostat Housing