TAD1640GE; TAD1641GE; TAD1642GE; TAD1650GE; TAD1651GE; TWD1643GE; TWD1652GE; TWD1653GE; TWD1663GE Intake and Exhaust System SCR. Electrical System TWD1663GE Parts on group SCR. Electrical System: Pos. Part No Qty Parts name Comments 1. 21621724 [1] Wiring harness 2. 945081 [1] Clamp 3. 984734 [1] Flange screw 4. 947827 [1] Clamp 5. 984725 [1] Flange screw 6. 3963413 [4] Ring Parts catalog : SCR. Muffler Components and Sensors TWD1663GE Pump Unit SCR, Components TWD1663GE SCR. Pump Unit TWD1663GE Heat Shield for Exhaust Manifold and Valve Cover TWD1643GE, TWD1652GE, TWD1653GE Heat Protection for Turbocharger TAD1650GE, TAD1651GE Heat Shield for Exhaust Manifold and Valve Cover TAD1640GE, TAD1641GE, TAD1642GE, TAD1650GE, TAD1651GE AdBlue/DEF Tank 160L TWD1663GE SCR. Hoses for Urea Installation TWD1663GE SCR. AdBlueDEF Tank Filter TWD1663GE Turbocharger TAD1640GE Turbocharger TAD1641GE, TAD1642GE Turbocharger TWD1643GE