ScaleTrains Rivet Counter HO SXT41436 DCC Ready Wabtec C44ACM Union Pacific/New Small Flag Scheme/Shield Nose Logo UP #6514

ScaleTrains Rivet Counter HO SXT41436 DCC Ready Wabtec C44ACM Union Pacific/New Small Flag Scheme/Shield Nose Logo UP #6514

Road Number Specific ScaleTrains

• All-new model
• Era: 2022 to Present
• Series 6430 to 6549; built 3-11/2000
• Road number 6468
  • Lost-wax brass cast Nathan AirChime K3LAR2 horn
• Road numbers 6482, 6503, and 6514
  • Lost-wax brass cast Nathan AirChime K3HAR2 horn
• Fully-assembled
• Multiple road numbers
• Operating LED-illuminated ground lights on both sides of locomotive*
• Operating LED-illuminated front deck-mounted ditch lights**
• Operating LED-illuminated front, rear, and side walkway lights*
• Printed high-mount cab number boards with separately controlled backlit LED-illumination*
• Directional LED-illuminated headlights
• Tall snowplow with MU hose openings and two (2) grab irons
• Semi-scale GE type coupler buffer equipped with durable metal semi-scale Type E knuckle couplers painted a dingy gray/brown color to represent the color of couplers in service
• Inside loop uncoupling levers with down brackets
• 5-step stepwells with see-through steps
• Walkway with front anticlimbers
• GE “nub” pattern walkway tread
• Narrow profile end handrails
• Front low (cab) mounted headlight 
• Left side nose door without window; security padlock with hasp
• Two-piece nose top grab irons
• Battery cabinet access door with latch
• GE safety cab with three (3) side windows
• Right side cab under floor access doors: 16 split large louver panels per door and rectangular late style latches
• Left side cab under floor access doors: dual latch door with grille forward of the HVAC unit
• Late - Rearward placed cab heater vent
• Cab interior with detailed back wall and front dash, high-back seats, conductor’s workstation, and engineer’s AAR-style control stand
• In-cab grade crossing camera
• Tinted cab side windows
• Tall mirror mounted in front of sliding cab side windows on both sides; additional small mirror on right side
• JEM Communications PTC antenna farm with Sinclair antennas
• Inverter Cabinet with Bolted and hinged access door, top two X panels same size, three lower X panels with 4 - 6 - 4 Bolt Pattern
• Continuous reinforcement rib under dynamic brake intake grilles
• High-capacity dynamic brake exhaust (3-port)
• Rearward right-side air intake grille
• Left side auxiliary cab: 3 short doors with latches on the #2 door and wide auxiliary cab filter box door
• Right side auxiliary cab: four (4) doors with latches on #1 and #4 doors
• Dual lifting lugs mounted to sides of clean air cab joint
• Late angled engine cab profile
• Late style engine cab door latches
• Low mounted lift rings on engine cab power assembly doors
• Three door latches per side on exhaust cab doors
• Late non-flanged exhaust stack housing
• Raised radiator grills and shutter system
• 24 individually-applied etched metal see-through radiator intake and exhaust grilles on sides and top of radiator compartment
• Right side late radiator door grilles in alternating heights
• No right side radiator wing access door
• Concave stamped brake wheel
• Left rear hood door grille arrangement: tall, short, tall grilles
• Low-mounted rear sand fill
• Early “box” lifting lugs on ends of radiator wings 
• Accurately profiled frame with separately-applied plumbing and traction motor cabling
• GE Hi-Ad trucks with reinforcement plate over center axle on right front and left rear side frames and separately applied brake cylinders, single bracket air plumbing, and rotating bearing caps 
• Wheel faces painted a dingy gray/brown color to represent the color of wheelsets in service
• No speed recorder
• Graham-White 994-500 series air dryer
• Dual Graham-White (Prime) 975-075 air filters
• 5,000-gallon fuel tank with vertical close spaced weld seams
• Dual fuel fills per side
• Round and vertical analog fuel gauges; digital fuel gauges
• Fuel tank mounted steel bell
• Curved handbrake chain bracket
• Spare coupler knuckle holders on rear pilot face
• Factory-applied detail parts: wire grab irons, spare knuckles, trainline hoses with silver gladhands, 3-hose MU clusters with silver gladhands, uncoupling levers, windshield wipers, mirrors, sunshades, and more
• Motor with 5-pole, skew-wound armature
• Dual flywheels
• All-wheel drive
• All-wheel electrical pick-up
• Printing and lettering legible under magnification
• Operates on Code 70, 83, and 100 rail
• Packaging safely stores model
• Minimum Radius: 18”
• Recommended Radius: 22”
  

DCC & sound ready locomotives also feature:

• Operate on DC layouts
• DCC ready with 21-pin connector*****

* Lighting features operate when using an ESU decoder with appropriate programming while operating using DCC

** In DC operation, both front ditch lights illuminate; rear ditch lights (if equipped) do not illuminate

*** Compatible with appropriately programmed ESU decoders while operating using DCC

**Lombard Hobbies Recommendation - As modelers ourselves we highly recommend ONLY running DCC on DCC systems and DC on DC systems, regardless of 'Dual-Mode' capability. This gives optimum performance and safeguards the unit from possible damage from running on a different system than originally intended and from any inexperienced operator errors.

Prototype History:

From early 2018 through 2025, Union Pacific contracted with GE, now Wabtec, to rebuild 1,030 aging locomotives. This massive rebuild project was spread out across 3 large orders including not only AC4400CW (C44AC) locomotives but also AC6000CW (C6044AC) and DASH 9s which would be converted from DC power to AC. The last order placed in 2023 was for 600 units worth more than $1 billion and is “the largest investment in modernized locomotives in rail industry history” according to Union Pacific. These would now be given the model number of AC4400CWM (“M” for Modernization) from GE. Union Pacific uses the designation “C44ACM” for all three previous builds of locomotives.

The bulk of the rebuilt locomotives are former AC4400CWs of Union Pacific, Southern Pacific, Chicago & North Western and GECX lineage. Each received multiple internal and external upgrades throughout. The most significant changes internally are the upgraded control system and wiring. GE included what they called the “Consolidated Control Architecture”. Wabtec later would call this “Modular Control Architecture.” This paired with the “FDL Advantage” which optimized the turbocharger to be fed by a single high-pressure common rail fuel system instead of the previous 16 individual fuel pumps. With these improvements, they were able to improve fuel efficiency by up to 18% and increase reliability.

Externally there are significant changes on all sides. Most of the units retained their original cabs however most if not all rebuilt C44ACMs in the 5700-5863 and 5864-5981 series have received upgraded ET44 style cabs. A few other random individual numbers in other equipment series also received new cabs. 

Behind the cab, all cabinets up to the engine compartment were replaced to those more closely resembling the ET44 GEVOs. These included new dynamic brake, inverter and inertial cabinets and components. The capacitor boxes were also removed from any units that had them next to the inverter cabinet. 

At the end of the locomotive, and one of the quickest ways to identify a C44ACM vs. an AC4400CW, is the new raised radiator grills. These were added so a new shutter system commonly seen on ES44 and ET44s could be installed to supplement the existing cooling systems.

Throughout the years of Union Pacific working with GE and Wabtec on the rebuild program, UP has been working on updating their image on their locomotives. To date, there are 4 different variations of paint scheme seen on the C44ACMs. The earliest rebuilds were delivered in the Building America scheme with the large flag on the engine compartment and winged shield on the nose. The next rebuilds arrived in the Building America scheme but in the place of the flag was UNION PACIFIC in an unusual lettering style. In 2022 UP finalized a new paint scheme which replaced the winged shield for the shield only on the nose. On the side of the cab, the flag would make its return and on the engine compartment would be UNION PACIFIC in the same unusual lettering style. The fourth design is the same as the previous design but it would see the return of UNION PACIFIC in the standard UP Gothic lettering style which is similar to Futura.

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