Athearn Genesis HO Scale Santa Fe ATSF #3640 EMD GP39-2 DCC/Sound Locomotive

Recreate classic Atchison, Topeka and Santa Fe Railway freight operations with the Athearn Genesis HO Scale ATSF #3640 EMD GP39-2 diesel locomotive. Factory-equipped with SoundTraxx Tsunami2 DCC/Sound, this premium Genesis model combines realistic diesel audio, smooth locomotive performance, and the distinctive appearance of an early Phase I Santa Fe road switcher.

Featuring a rear-mounted fuel tank, large front anticlimber, Leslie 3-chime horn, and Stratolite cab beacon, ATSF #3640 is ideal for model railroaders assembling a historically inspired Santa Fe locomotive roster. Explore additional HO scale locomotives to expand your motive power fleet.

The Santa Fe Railway's EMD GP39-2 Locomotive Fleet

Electro-Motive Division manufactured the GP39-2 between 1974 and 1984 as a fuel-efficient four-axle diesel-electric road switcher. Powered by a turbocharged 12-cylinder EMD 645E3 prime mover producing 2,300 horsepower, the locomotive provided an alternative to larger 16-cylinder road diesels.

Santa Fe purchased substantial numbers of GP39-2 locomotives for freight service. Although initially assigned to faster freight trains, these versatile locomotives became familiar sights on local freight runs, industrial branches, and road-switching assignments.

Athearn Genesis models ATSF #3640 in its early Phase I configuration, reproducing the railroad's distinctive fuel tank placement, walkway steps, front anticlimber, and other identifying details.

Santa Fe ATSF #3640 Road-Specific Details

• Authentic Santa Fe Railway paint scheme and lettering
• Early Phase I GP39-2 locomotive body
• Rear-mounted fuel tank
• Large front anticlimber
• Stratolite cab beacon with supported DCC lighting effect
• Switcher-style walkway steps
• Leslie 3-chime locomotive horn
• Small EMD front plow
• Illuminated number boards
• Detailed Blomberg trucks and underbody equipment

SoundTraxx Tsunami2 DCC/Sound and Dual Speakers

This Athearn Genesis Santa Fe GP39-2 #3640 includes a factory-installed SoundTraxx Tsunami2 sound decoder and dual cube speakers, providing realistic diesel locomotive audio without requiring an aftermarket decoder installation.

The locomotive operates on both conventional DC and DCC layouts. Engine, horn, and bell sounds are available during DC operation, while a compatible DCC system provides access to the full range of digital functions.

With DCC operation, model railroaders can adjust locomotive settings through Configuration Values, use precision slow-speed control, program multiple-unit consists, and access supported lighting effects.

Browse more HO scale diesel locomotives to assemble realistic locomotive consists and freight operations.

Genesis Mechanical Performance and Detailed Construction

The Athearn Genesis GP39-2 features a five-pole skew-wound motor, precision-machined flywheels, and a multi-link drivetrain engineered for smooth locomotive performance.

All-wheel drive and electrical pickup help maintain consistent operation, while a heavy die-cast frame provides traction for pulling freight trains. RP25 wheel contours and body-mounted McHenry knuckle couplers offer compatibility with popular HO scale railroad equipment.

Exterior details include factory-installed grab irons, windshield wipers, lift rings, fine-scale handrails, etched metal fan grilles, a detailed cab interior, and realistic fuel tank components.

LED lighting and illuminated number boards enhance the locomotive's appearance, while the minimum recommended operating radius of 18 inches makes it suitable for many HO scale layouts.

Perfect for Classic Santa Fe Freight and Road-Switching Service

Santa Fe's GP39-2 fleet served in a variety of freight assignments, making ATSF #3640 a versatile locomotive for HO scale operations. Model railroaders can use it to represent local freight trains, industrial switching, road-switching duties, or multiple-unit consists with other Santa Fe locomotives.

Its original Phase I appearance makes it especially suitable for layouts set during the late 1970s, 1980s, and early 1990s, before many Santa Fe locomotives underwent later rebuilding programs.

Discover additional road numbers and railroad paint schemes in our Athearn Genesis HO Scale EMD GP39-2 locomotives collection.

Athearn Genesis GP39-2 ATSF #3640 Specifications

• Brand: Athearn Genesis
• SKU: ATHG-1980
• Scale: HO (1:87)
• Locomotive Model: EMD GP39-2
• Railroad: Santa Fe Railway
• Reporting Mark: ATSF
• Road Number: 3640
• Body: Early Phase I
• Horn: Leslie 3-Chime
• Control: DC / DCC
• Factory Decoder: SoundTraxx Tsunami2
• Sound: Factory Equipped
• Speakers: Dual Cube Speakers
• Lighting: LED
• Wheel Arrangement: B-B
• Minimum Radius: 18 Inches

Shop Athearn Genesis HO Scale GP39-2 Locomotives at Train Supply

Bring the sights and sounds of Santa Fe diesel operations to your model railroad with the Athearn Genesis EMD GP39-2 ATSF #3640. Explore our complete selection of HO scale model trains, diesel locomotives, freight cars, and model railroad accessories at Train Supply.