Engine Codes:N57D30A & N57D30B. Engine Codes: N57D30A N57D30B. Timing Chain Kits (78). Kit Includes:48 Link Chain, 72 Link Chain, 86 Link Chain, 4 Guide Rails, Tensioner & Gears Fits models:325d, 330d, 335d, 430d, 435d, 525d, 530d, 535d, 640d, 730d, 740d, X3, X4, X5 & X6.
