Essential Timing Tool Kit: This 12-piece timing tool kit is specifically designed for locking the flywheel in the TDC (Top Dead Center) position, ensuring precise engine timing during service and maintenance. Efficient Crankshaft Alignment: The kit enables the crankshaft to be turned to the TDC position while the central bolt moves, facilitating accurate engine timing adjustments. Wide Application Range: Compatible with various BMW engine codes, including N51, N52, N53, and N54, covering numerous models across different years: N51 (1991 – 1995): E34, E36, E39 (Models: 325td, 525td, 725td) N52 (2004 – 2011): E60, E61, E63, E65, E70, E82, E83, E84, E85, E86, E87, E88, E89, E90, E92, E93 (Models: 125i, 128i, 130i, 323i, 325i, 325xi, 328i, 330i, 330ci, 330xi, 523i, 525i, 525xi, 528i, 530i, 530xi, 630i, 730i, X1, X3, X5, Z4) N53 (2007 – 2011): E60, E61, E90, E91, E92, E93, F01, F10 (Models: 325i, 330i, 525i, 530i) N54 (2006 – Current): E60, E81, E82, E88, E89, E90, E91, E92, E93, F01, F10 (Models: 135i, 1M, 335i, 535i, X6, Z4, 740i) Durable Construction: Crafted from high-quality materials for long-lasting performance, this timing tool kit is essential for both professional mechanics and automotive enthusiasts. User-Friendly Design: Simplifies the timing process, making it efficient and straightforward for anyone working on BMW engines.