Width [mm]: 128; Filter type: Filter Insert; Height [mm]: 73; Length [mm]: 322; Supplementary Info: ORIGINAL Quality; Compatible with Audi: A4 Avant (8K5, B8), Q5 (8RB), A4 Limousine (8K2, B8), A5 Sportback (8TA), A5 Coupe (8T3), A4 Allroad (8KH, B8), A5 Cabrio (8F7). Part numbers: 8K0133837AC, 133843E, 133843M, 8R0133843C, 8R0133843D, 8R0133843K, MAF0180. This is an engine air filter designed for optimal performance and filtration.