Mercedes Benz Air Fitting Seal Ring: Inner Seal Ring for Standard 14mm Hex Fitting, W112/W109/W100, Mercedes Benz 112-997-04-40

This inner Seal Ring is standard in all Mercedes Benz air suspension cars, ring is located in a groove at the bottom inside the Standard 14mm Hex Fitting with M12 x1  inner thread replacing the original Ring. 

Fits

W100/ 600 Grosser Mercedes, 

W109.015, W109.016, W109.018, W109.056,
W109.057

W112

Mercedes Benz part number

A1129970440,  A112 997 04 40,  A112 997 0440,  A112-997-04-40,

A112-997-0440

1129970440, 112 997 04 40, 112 997 0440, 112-997-04-40

112-997-0440

ps   more than 40 inner and 40 outer seals are used in a Mercedes Benz air suspension car,  amount is depending on the car type.