TAD520GE; TAD720GE; TAD721GE; TAD722GE Engine Camshaft. Stage 1, Tier 1 TAD720GE Parts on group Camshaft. Stage 1, Tier 1: Pos. Part No Qty Parts name Comments 1. 20412339 [1] Camshaft SN-10211242 1. 20893992 [1] Camshaft SN10211243-10763626 1. 21272768 [1] Camshaft SN10763627-11598968 1. 22414668 [1] Camshaft SN11598969- 2. 11700366 [12] Valve 3. 20405534 [12] Push rod Parts catalog : Camshaft. Stage 1, Tier 1 TAD520GE Timing Gear Casing and Gears TAD520GE, TAD720GE, TAD721GE, TAD722GE Flywheel for Flywheel Housing SAE 3 TAD520GE, TAD720GE, TAD721GE, TAD722GE Flywheel (0,87 kgm²) for Flywheel Housing SAE 2&3 TAD520GE, TAD720GE, TAD721GE, TAD722GE Flywheel Housing SAE 3 TAD520GE, TAD720GE, TAD721GE, TAD722GE Flywheel for Flywheel Housing SAE 2 TAD520GE, TAD720GE, TAD721GE, TAD722GE Camshaft. Stage 2, Tier 2 TAD520GE Camshaft. Stage 2, Tier 2 TAD720GE, TAD721GE, TAD722GE Crank Mechanism Stage 1, Tier 1 TAD520GE Crank Mechanism Stage 1, Tier 1 TAD720GE Crank Mechanism SN-779906 Stage 2, Tier 2 TAD520GE Crank Mechanism SN779907- Stage 2, Tier 2 TAD520GE