Bulletin: *Dual EMD 16cyl 645E3A (FT)*

*Dual EMD 16cyl 645E3A (FT)*

Equipped with ESU "FULL THROTTLE" features!
MUST use LokProgrammer Version 4.4.21 or newer

The Dual EMD 16cyl 645E3A prime movers were used in Union Pacific's DDA40X locomotive. Each of the two prime mover provides 3,300 hp. The DDA40X is the most powerful single-unit locomotive ever built.

As the DDA40X program was a test, a number of experiments were conducted during the service life of these locomotives. One such test included fitting a few of the units with air raid sirens to warn track-side personnel when away from grade crossings, but the results were inconclusive. Another of the tests included successful modular electrical components. This made for easier diagnosis of electrical problems. These modifications were used in all future locomotive units built by EMD. All DDA40X units included a new load test circuit, allowing units to load test without a track-side load test box. Gearing was 59:18, allowing 80 mph on passenger trains.


As with all SELECT decoders there are up to 16 separate horns, 2 separate brake squeals and 2 bells included on this one sound profile! All changeable using CV48.

Prime Mover:
CV48=0 Dual EMD 16cyl 645E3A


CV48=0 Nathan K5LA
CV48=1 Nathan K3L
CV48=2 Leslie S3L - Default
CV48=3 Nathan P3
CV48=4 Nathan Old Cast P5
CV48=5 Nathan K3HA
CV48=6 Nathan K3HA (Duplicate horn due to space restriction)
CV48=7 Leslie S5T
CV48=8 Leslie S5T (Duplicate horn due to space restriction)
CV48=9 Leslie S5T (Duplicate horn due to space restriction)
CV48=10 Leslie S5T (Duplicate horn due to space restriction)
CV48=11 Leslie S5T (Duplicate horn due to space restriction)
CV48=12 Leslie S5T (Duplicate horn due to space restriction)
CV48=13 Leslie S5T (Duplicate horn due to space restriction)
CV48=14 Leslie S5T (Duplicate horn due to space restriction)
CV48=15 Leslie S5T (Duplicate horn due to space restriction)

CV48=0 Steel Bell
CV48=64 Bronze Bell

Add values from above for total CV48 value.

Default CV48 Value = 71

0 - Dual EMD 16cyl 645E3A
2 - Leslie S3L
64 - Bronze Bell

Total 0+0+66 = 66

New FULL THROTTLE features:
Drive Hold: Sound Slot 2 Mapped to F9
Independent Brake: Sound Slot 11 Mapped to F10
Run 8: Sound Slot 20 (not Mapped)
Coast: Sound Slot 21 (not Mapped)

For more info please see the "Full Throttle" Quick Start Guide in the ESU Instruction Manual Section of our Website.


Key Function Soundslots Volume CVs Volume value
LightDirectional Headlights
F2Playable Airhorn3275128
F4Dynamic Brake629990
F5AUX3 (Rotary Beacon)
F6AUX1 + AUX2 (Front Ditchlights)
F7Switching Mode
F8Sound (On/Off)1, 23259, 435128, 128
F9Drive Hold2267128
F10Independent Brake1133920
F11Radiator (Fan) Sound831550
F12Dimmer (Headlights)
F13AUX4 (Rear Ditchlights)
F14Air Raid Siren93238
F15Fast Spitter Valve1537150
F16Spitters on Shutdown
F17Brake Set / Brake Release
F18Sanding Valve13355128
F19Short Air Let Off14363128
F21Slow Spitter Valve1738750