TAD520GE; TAD720GE; TAD721GE; TAD722GE Engine Camshaft. Stage 2, Tier 2 TAD720GE, TAD721GE, TAD722GE Parts on group Camshaft. Stage 2, Tier 2: Pos. Part No Qty Parts name Comments 1. 20500046 [1] Camshaft SN-00715414 1. 20524460 [1] Camshaft SN00715415-10209445 1. 20894013 [1] Camshaft SN10209446-10758100 1. 21246145 [1] Camshaft SN10758101-11598974 1. 22414674 [1] Camshaft SN11598975- 2. 11700366 [12] Valve 3. 20405534 [12] Push rod Parts catalog : Camshaft. Stage 2, Tier 2 TAD520GE Camshaft. Stage 1, Tier 1 TAD720GE 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 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 Crank Mechanism SN-779906 Stage 2, Tier 2 TAD720GE Crank Mechanism SN779907- Stage 2, Tier 2 TAD720GE