Athearn G62425 HO Scale Union Pacific GP9 Diesel Locomotive #173

Athearn G62425 HO Scale Union Pacific GP9 Diesel Locomotive #173

Skip to product information
1 of 1
Sold Out
This is Athearn G62425 UP #173 HO GP9. Its key features are: Genesis driveline with dynamically balanced five pole skew wound motor and dual flywheels
All-wheel drive and electrical pick-up
DCC Quick-Plug equipped
Accurate nub-style walkway tread detail
Wire grab irons installed
Etched metal radiator intake grilles and fan grilles
Many prototype-specific details applied
Celcon handrails
Equipped with McHenry scale knuckle spring couplers

Overview
In 1939, the Electro-Motive Division of General Motors introduced the FT, the first road freight diesel locomotive. The success of the FT and the post-war successors, the F2 and F3, made EMD the largest locomotive builder by 1949. But in early 1949, there was a threat to EMD’s lead. The other builders were all offering a new type of locomotive, the road-switcher. As the name implies this was a locomotive that combined the features of a switch engine with those of a road freight engine. EMD’s first attempt at a road switcher, the BL-2, was not successful. The BL-2 was essentially an F3A with front and rear steps and walkways and had the upper parts of the car body sloped inward to improve visibility to the rear. EMD needed something better. In early 1949, the F3 series was upgraded to the F7 series. In October 1949, EMD introduced the GP7. The GP7 was powered by a 16-cylinder, 1,500 horsepower 567B diesel engine driving a D12 generator, which powered four D27 traction motors, exactly like the F7. The basic design, like almost all road switchers, followed the design of diesel switchers with the addition of a short hood instead of an end-cab. EMD also made the hoods full height to better accommodate the diesel engine and all of the mechanical and electrical components of a road engine.

The first versions of the GP7 were more switchers than road units as they came with smaller fuel tanks and were not equipped with dynamic brakes. In 1951, the second version was introduced with options like several sizes of fuel tanks, dynamic brakes, and steam generators. Fuel tank sizes included 800 gallon, 1,200 gallon, and 1,600 gallon tanks. When water tanks to supply the steam generators were added, there were options for tanks for 800 gallons of fuel and 800 gallons of water or for 1,100 gallons of each. These larger tanks required moving the air reservoirs to the roof to provide space for the tanks. These units became known as “torpedo boats.” Early GP7s had taller engine doors. On the Phase 2 engines with dynamic brakes, the doors under the dynamic brakes were shortened by four inches, leaving one tall door in front of the dynamic brakes. The Phase 3 engines used the shorter doors for all of the engine access doors regardless of dynamic brakes. Another variation was the cabless GP7B built for Santa Fe. GP7 production lasted from October 1949 until May 1954. There were 2,615 GP7s built for U.S. railroads, 112 for Canada, and 2 for Mexico. Major buyers of the GP7 were Santa Fe (244 and 5 GP7Bs), New York Central (218), Missouri Pacific (208), Chesapeake & Ohio (180) and Atlantic Coast Line (154). Other roads buying more than 100 units included Frisco (129), Seaboard Air Line (123), Chicago & Northwestern (121) and Rock Island (113).

In January 1954 EMD upgraded its product line with the 567C engine, D12B generator, and D37 traction motors. The GP7 became the 1,750 horsepower GP9. The GP9 marked the end of the car body freight locomotive (there were 3,808 F7s built). Externally, the first GP9s were little changed from the last GP7s. Later versions would change the louver arrangements and the last versions would come without the frame skirting. The GP9 came with all of the fuel tank, steam generator, and dynamic brake options as the GP7 including “torpedo boats.” There were also GP9Bs built for Pennsylvania (40) and Union Pacific (125). Production lasted until December 1959, although 13 additional units were built in

Condition: Factory New (C-9)
Operational Status: Functional
Original Box: Yes (P-9)

Manufacturer: Athearn
Model Number: G62425
Road Name: St Louis San Francisco "Frisco" (SLSF)
MSRP: $179.98

Scale/Era: HO Scale
Model Type: Diesel Loco


The Trainz SKU for this item is P11634665.

Trainz Product Id: 11634665
looking for parts for this product?

Looking for parts for this product?

View ho scale parts

Your order is professionally packed with high quality packing materials to offer the best possible protection during transit.  If something should go wrong, we insure all packages against both loss and damage. 

We’re committed to keeping our shipping prices low, and our delivery times fast. Our system will automatically choose the best carrier at the time of shipment to help us deliver the lowest prices possible.

The moment your order ships you will receive an automated email which provides confirmation of shipment.  For most shipping services you will also receive a tracking number and a link to a page where you can track your shipment.

Free shipping

We love happy customers and do our best to maintain a fair and hassle-free customer satisfaction policy. We will gladly repair or replace your item, issue a refund, or negotiate a partial credit.

Just contact us within 30 days of receipt of the item (or within 60 days if you are a Private Car member). Explain why the item does not meet your expectations and how you would like us to handle the issue. If your item has been damaged try to include a photograph of the actual damages. We'll do our absolute best to make you happy.

If you and Trainz decide that the best recourse is to return the item for refund or repair we will send you a pre-paid return shipping label. Make sure to include your contact and order information when you return your items. Once Trainz receives and inspects the items we will repair your item or issue a refund.

Trainz reserves the right to charge you:

  • Return shipping if an item is returned to Trainz.
  • 15% re-stocking fee if an item is not returned in its original condition.
  • Any carrier charges resulting from a refused shipment.

For International orders only:

  • Trainz does not refund shipping charges.
  • Customers are responsible for paying return shipping.

Our return policy may differ on our other marketplaces such as eBay. If your item was not purchased on Trainz.com, please review the return policy where your item was purchased.

If you have any questions, don't hesitate to Submit a Support Ticket

View full details