GE part numbers starting AC4
| AC-40 | Brushholder, dimensions 1 x 1 | GE | ||
| AC-40B | Brushholder, dimensions 7/8 x 1 | GE | ||
| AC-40M | Brushholder for allis chalmers AC-40m | GE | ||
| AC-43 | Brushholder for allis chalmers AC-43 | GE | ||
| AC-43A | Brushholder for allis chalmers AC-43a | GE | ||
| AC-44UF | Brushholder, dimensions 5/8 x 1 3/4 | GE | ||
| AC-45 | Brushholder, dimensions 1 3/4 x 5/8 | GE | ||
| AC-45A | Brushholder, dimensions 1 3/4 x 5/8 | GE | ||
| AC-46 | Brushholder, dimensions slipring 1 3/4 x 5/8 | GE |