TMD121C; TAMD121C; TAMD121D; TAMD122C; TAMD122D Electrical System Instruments for Separate Mounting, 24V Parts on group Instruments for Separate Mounting, 24V: Pos. Part No Qty Parts name Comments 1. 823409 [1] Tachometer D=83mm 3000 rpm 2. 827149 [1] Thermometer D=52mm 3. 813864 [1] Instrument, oil-pressure D=52mm 4. 844957 [1] Hour recorder D=60mm 5. For 844957 6. Parts catalog : Alarm Panel 24V and Relay Card for Parallel Indication. Classifiable Instrument Panel for Alternative Control Station. Classifiable Extra Instrument Panel, Classifiable Instrument Panel. Classifiable Main Instrument Panel 24V: 873591 Main Instrument Panel 24V: 864046 Instruments for Separate Mounting, 24V Instrument Panel 24V, Earlier Production: 846804, 847978 Instrument Panel 24V, Earlier Production: 849935 Instrument Panel 24V, Earlier Production: 862579 Instrument Panel for Dual St., 24V, Earlier Production: 847977 Instrument Panel for Dual St., 24V, Earlier Production: 849937