

Dear HO Scale Customers;
Athearn Genesis is excited to announce New EMD (Electro-Motive Division) GP7 / GP9 Diesel Locomotives

Santa Fe - GP7u
Santa Fe’s GP7u program, launched in 1972, rebuilt EMD GP7 locomotives to extend their operational life. The rebuild included chopped front hoods to improve visibility and new cabs, commonly known as “Topeka Cabs,” named for Santa Fe’s Topeka shops, where the work was performed. The locomotives also received upgraded prime movers with new components and four exhaust stacks. Units originally equipped with dynamic brakes had that equipment deactivated as part of the program. These modifications significantly extended the service life of the locomotives, and many remained in service through the BNSF merger.
ATSF FEATURES:
ROAD NUMBER SPECIFIC FEATURES:

Santa Fe ‘Kodachrome’ - GP7u
The “Kodachrome” paint scheme was a striking red, yellow, and black livery applied to hundreds of locomotives in the 1980s. It was created for the anticipated merger of the Atchison, Topeka and Santa Fe (ATSF) and the Southern Pacific (SP) railroads into the Santa Fe Southern Pacific (SPSF). Railfans dubbed the scheme “Kodachrome” because the bright red and yellow colors heavily resembled the iconic yellow, red, and black boxes of Kodak film. Locomotives featured yellow fronts (often retaining the classic Santa Fe warbonnet shape), red along the body, and black trim along the roofline. Because the railroads were legally required to operate separately until the merger was finalized, they only painted their own initials, either “SP” or “SF” on the hood sides. A large gap was left adjacent to the letters to allow “SPSF” to be completed after official approval. Both railroads were confident that the Interstate Commerce Commission (ICC) would approve the merger that they painted numerous locomotives before the official ruling. After the ICC rejected the merger, railfans humorously reinterpreted the “SPSF” acronym as “Shouldn’t Paint So Fast”. According to our research, six GP7u locomotives received the “Kodachrome” scheme.
ATSF FEATURES:
ROAD NUMBER SPECIFIC FEATURES:

Burlington Northern Santa Fe ‘H1’ - GP7u
The BNSF Railway “Heritage 1” (H1) paint scheme, introduced in 1996 following the Burlington Northern and Santa Fe merger, was the company’s first unified livery. Inspired by the historic Great Northern Railway colors, it features “Omaha Orange” and “Pullman Green” separated by yellow pinstriping. The nose prominently displayed the original BNSF circular emblem, while “BNSF” appeared on the long hood. Trucks and fuel tanks were typically painted dark green. A few BNSF GP7u Locomotives received H1 repaints, and Athearn is pleased to offer these unique and eye-catching models.
BNSF FEATURES:
ROAD NUMBER SPECIFIC FEATURES:

Chicago and North Western - GP7R
The Chicago and North Western’s Oelwein shops were known for turning out a variety of rebuilt locomotives. A total of 74 GP7 locomotives were rebuilt between 1971 and 1981. The rebuild included chopped front hoods to improve visibility. The locomotives also received overhauled prime movers and electrical equipment. These modifications significantly extended the service life of the locomotives.
CNW FEATURES:
ROAD NUMBER SPECIFIC FEATURES:

Chicago and North Western - GP9R
The Chicago and North Western’s Oelwein shops were known for turning out a variety of rebuilt locomotives. A total of 55 GP9 locomotives were rebuilt between 1971 and 1981. The rebuild included chopped front hoods to improve visibility. The locomotives also received overhauled prime movers and electrical equipment. These modifications significantly extended the service life of the locomotives.
CNW FEATURES:
PROTOTYPE AND BACKGROUND INFO:
In 1949, EMD introduced the GP7. The basic design followed most diesel switchers with the addition of a short hood instead of an end-cab. The hoods were also full height to better accommodate the diesel engine and mechanical and electrical components.
In 1954 EMD upgraded the GP7 to become the 1,750 horsepowerGP9. Externally, the first GP9s were virtually unchanged from the last GP7s. Later versions would include different louver arrangements, andthe last ones would come without the frame skirting. The GP9 was available with all fuel tank, steam generator, and dynamic brake options as the GP7, including roof mounted “torpedo tube” air tanks.
Many railroads chose to rebuild their GP7s and GP9s for continued service. Often times, it was cheaper to do this rather than purchasing brand-new locomotives. Some railroads adopted a GP7R or GP7udesignation to indicate a rebuilt unit.
GP7 SERIES LOCOMOTIVE FEATURES:
SOUND-EQUIPPED MODELS ALSO FEATURE
PRIMED FOR GRIME MODELS FEATURE
Order Due Date: August 31, 2026
Anticipated Delivery Date: December 2027
Looking for more Athearn EMD (Electro-Motive Division) GP-7 / GP-9 Diesel Locomotives? Click here!