G1 series: G511-G516

EMD 16-645E3B prime mover

G2/G3/G4 series: G517-G543

EMD 16-645E3C prime mover (C/- G535)

Leslie RS-5T or Nathan P5 air horns (user selectable)

Low note horn

Low idle (reverser in-out for 645 series engines)

Drive hold (Full Throttle feature)

Physical brake (Full Throttle feature)

Manual handbrake

Brake graunch

Coupler crash, brake lines, coupler bar

Curve squeal

Sanders