Please confirm your original turbo part number before purchasing. The part number is located on the turbo NAMEPLATE of the compressor housing, you can check it with your mechanic as well. Turbo Model K04-026 (Right side ) Part Number & OEM Number 53049880026, 5304-988-0026, 5304 988 0026, 53049700026, 5304-970-0026, 5304 970 0026, 078145702M, 078145704M, 078145704MX, 078145704MV Note: For the OE/PN number below need modification: 53039880017, 5303-988-0017, 5303 988 0017, 53039700017, 5303-970-0017, 5303 970 0017, 078145704D, 078145704L, 078145704S, 078145704R, 078145704H, 078145702H, 078145702L, 078145702R, 078145702S, 078145704B, 078145704C, Applications Compatible for Audi RS4 V6 Bi-turbo with AZR/ASJ Engine 2000-05 Right Side Compatible for Audi A4 V6 Bi-turbo with AZR/ASJ Engine 2000-05 Right Side Note: For the car model below need modification: Compatible for Audi A6 with AJK, ARE, BES, AGB Engine 1997-01 Compatible for Audi A6 Allroad with AJK, ARE, BES, AGB Engine...