HO GP39-2, SOO/Red #4598

AthearnSKU: ATHG65399



  • All-new LED lighting
  • Rubber MU hoses for durability

The effort continues to enhance Athearn Genesis models per customer requests and feedback. There has been a lot of activity behind the scenes here at Athearn! We are excited to introduce some new, often requested features, to the GP39-2 and other upcoming Genesis models.


  • Phase 1 GP39-2
  • Walkway w/ switching steps & anticlimber
  • Intake grilles with top and bottom ribs
  • Riveted cab sides with no armrests
  • Early battery box doors
  • Leslie S-3 air horn on bracket
  • Sinclair antenna on ground plane
  • Vapor air conditioner
  • Illuminated prime Stratolite beacon
  • Medium cab side mirrors
  • 81” nose with ratchet brake
  • Front EMD low plow
  • Blomberg-M trucks
  • 2900 gal fuel tank
  • Cab-mounted headlight
  • Stratolight beacon, effect w/ DCC+Sound
  • No air conditioner
  • Extra MU receptacles
  • Nose-mounted headlight
  • No beacon
  • With air conditioner
  • Extra MU receptacles


  • Phase II GP39-2
  • Early exhaust stack
  • Welded cab side panels with armrests
  • Long hood mounted Leslie S-3 horn
  • Illuminated Xenon strobe, effect w/ DCC+Sound
  • 3-Pane all weather cab window on engineer side
  • 81” nose with ratchet brake
  • Front anticlimber, rear drop step
  • 2900 gallon fuel tank


  • Phase IIb GP39-2
  • Early exhaust silencer
  • Welded cab side panels with armrests
  • Early hinged BN battery box doors w/ single louver
  • Leslie S-3 horn offset on cab right
  • Large and small firecracker antennas on cab
  • Illuminated Western Cullen beacon, effect w/ DCC+Sound
  • Sunshade on conductor side only
  • 3-Pane all weather cab window on engineer side
  • 88” nose with ratchet brake
  • Front anticlimber, rear drop step
  • 3600 gallon fuel tank
  • Spare knuckles on rear pilot
  • BN hose catch pockets on rear pilot
  • Rectangle builder’s plates
  • Blomberg-M trucks with leaf springs


  • Former RDG units; major spotting details remain the same
  • Phase 1 GP39-2
  • Intake grilles with top rib only
  • Riveted cab side plates with armrests
  • Early battery box doors
  • Large Sinclair antenna
  • Cab side rain gutters
  • 81” nose w/ ratchet brake
  • 2600 gal fuel tank
  • Blomberg-B trucks


  • Patched former Guilford D&H ex RDG units; major spotting details remain the same
  • Cab sublettered CSXT
  • Lasted till the mid 1990s in Guilford paint before being repainted to CSX colors


  • Phase III GP39-2
  • Post 02/1983 straight sill walkways and late step wells
  • Large radiator grills, widely spaced Q-fans, small exhaust silencer
  • Meticulously rendered MKT striping pattern on cab
  • Late battery box doors
  • Illuminated cab mounted strobe; effect DCC+Sound
  • 88” nose w/ ratchet brake
  • 2600 gal fuel tank
  • Blomberg-B trucks
  • S5T horn on cab & single-chime horn mounted on rear hood
  • Tsunami2 equipped DCC+Sound models feature accurate EMD silenced 645E3B turbo sound effects

The most unique GP39-2s constructed were those delivered to the MKT in 1983-1984. At this point, EMD had ceased production of the Dash-2 body styles, meaning that these geeps came with the larger GP50 style intakes and radiators.


  • Fully-assembled and ready-to-run
  • DCC-ready features Quick Plug™ plug-and-play technology with 21-pin NEM connector
  • Scaled from prototype resources including drawings, field measurements, photographs, and more
  • Accurately-painted and –printed paint schemes
  • Coupler cut levers
  • MU hoses
  • Trainline hose
  • See through cab windows
  • Full cab interior
  • Walkway tread
  • Fine-scale Celcon handrails for scale appearance
  • Windshield wipers
  • Lift rings
  • Wire grab irons
  • Detailed fuel tank with fuel fillers, fuel gauges, & breather pipes
  • Sander lines
  • McHenry scale knuckle couplers - Kadee compatible
  • Genesis driveline with 5-pole skew wound motor, precision machined flywheels, and multi-link drivetrain
  • All-wheel drive with precision gears for smooth & quiet operation
  • All-wheel electrical pickup provides reliable current flow
  • Wheels with RP25 contours operate on all popular brands of track
  • LED Lighting for realistic appearance
  • Heavy die-cast frame for greater traction and more pulling power
  • Packaging securely holds for the model for safe storage


  • Onboard DCC decoder with SoundTraxx Tsunami2 sound
  • Sound units operate in both DC and DCC
  • Full DCC functions available when operated in DCC mode
  • Engine, horn, and bell sounds work in DC
  • All functions NMRA compatible in DCC mode
  • Precision slow speed control
  • Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights
  • Many functions can be altered via Configuration Value (CV) changes
  • CV chart included in the box


In the decade between 1974 and 1984 , EMD produced the GP39-2 for seven North American railroads. The basic design followed most four axle road diesel switchers for the time. Borrowing improvements from the GP38-2 and GP40-2 designs, this mid-horsepower road switcher utilized a turbocharged 12-cylinder EMD 645E3 diesel engine for it’s prime mover. With 4 fewer cylinders, the smaller engine provided a distinctive long hood on the phase II and phase III bodies, where the clean room/engine compartment doors were set back from the cab further than predecessor locomotives.

Sensitivity to fuel economy in the 1970s justified the GP39-2 in the locomotive market. It also laid the ground work for EMD to start exploring locomotive designs that utilize engines with larger piston displacement yet posess fewer cylinders. This approach has become the foundation to modern locomotive technology.


DCC: Ready/21-Pin NEM
Axles: 4
Minimum Age Recommendation: 14 years
Is Assembly Required: No

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