ITEM NAME:Replacement Car Timing Chain Tensioner for BMW N51 N52 N53 N54 N55 2.5 3.0 Description: - High Reliability - Material: Metal - Size: Approx 100mm*30mm - Part Number: 11317584723 - Fit for BMW 1, 2, 3, 4, 5, 6, 7 Series, X1, X3, X4, X5, X6 & Z4 2.5 & 3.0 petrol models with N51, N52, N53, N54 & N55 engines. Package Included: 1 Piece Timing Chain Tensioner Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making.Fit for BMW 1, 2, 3, 4, 5, 6, 7 Series, X1, X3, X4, X5, X6 & Z4 2.5 & 3.0 petrol models with N51, N52, N53, N54 & N55 engines. 1 Piece Timing Chain Tensioner. Due to the difference between different monitors, the picture may not reflect the actual color of the item.