no: 13 2107-a370 throttle-drive-unit
No: 18 NIVA-A370 n3-throttle-drive-unit-carb
No: 21 NIVA-A371 n3-throttle-drive-unit-carb-rhd
No: 11 NIVA-A373 n3-throttle-drive-unit-tbi-rhd
