Skip to content
  • 🎁 Find the perfect gift with our 🎁Gift collection🎁 and snap sales!🎁
  • 🎁 Find the perfect gift with our 🎁Gift collection🎁 and snap sales!🎁
Model Train HubModel Train Hub
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • HOME
  • HO Scale
    • HO Scale Rolling Stock
    • HO Scale Structures
    • HO Scale Detail Parts
    • HO Scale Track and Accessories
    • HO Scale Locomotives
    • HO Scale Containers and Trailers
    • HO Scale Couplers, Trucks, and Wheelsets
    • HO Scale Vehicles
    • HO Scale Signaling
    • HO Scale Athearn Parts
  • Best Seller
Home / Uncategorized
  • Broadway Limited 7363 - ALCO 4-8-4 FEF-3 W/ Paragon4 Sound/DC/DCC/Smoke Union Pacific (UP) 820 - HO Scale -Model Train Hub bli7363 88716.1671229670
  • Athearn Genesis 88312 - ALCO FEF-3 4-8-4 Union Pacific (UP) 835 - HO Scale -Model Train Hub athg88412 11898.1671483122
Sale!
Athearn Genesis 88412 - ALCO FEF-3 4-8-4 W/ DCC & Sound Union Pacific (UP) 835 - HO Scale

Athearn Genesis 88412 – ALCO FEF-3 4-8-4 W/ DCC & Sound Union Pacific (UP) 835 – HO Scale

$378.00 Original price was: $378.00.$99.99Current price is: $99.99.

SKU: ATHG88412 Category: Uncategorized Tag: Athearn Genesis
  • Quality products for every lifestyle.
  • Your satisfaction is 100% guaranteed.
  • Elevate Your Shopping Experience
  • Guaranteed High Quality
Browse
  • HO Scale
    • HO Scale Athearn Parts
    • HO Scale Containers and Trailers
    • HO Scale Couplers, Trucks, and Wheelsets
      • HO Scale Couplers
    • HO Scale Detail Parts
      • HO Scale Locomotive and Rolling Stock Details
      • HO Scale Road Details
      • HO Scale Structure Details
    • HO Scale Locomotives
      • HO Scale Diesel Locomotives
    • HO Scale Rolling Stock
      • HO Scale Boxcar
      • HO Scale Caboose
      • HO Scale Covered Hopper
      • HO Scale Flat Car
      • HO Scale Gondola
      • HO Scale Intermodal Equipment
      • HO Scale Maintenance of Way
      • HO Scale Open Hopper
      • HO Scale Passenger Car
      • HO Scale Reefer
      • HO Scale Tank Car
    • HO Scale Signaling
    • HO Scale Structures
      • HO Scale Laser Cut Kits
      • HO Scale Pre-Built Structures
      • HO Scale Structure Kits
    • HO Scale Track and Accessories
      • HO Scale Bridges
      • HO Scale Code 70
      • HO Scale Code 83
      • HO Scale Kato Unitrack
    • HO Scale Vehicles
  • Uncategorized
  • Description
  • Additional information
  • Reviews (0)

FEF-3 FEATURES

  • UP 835-844 came in 1944 as coal burners with 80-inch drivers, similar to the FEF-2’s but with dual smoke stack and different front end pilot.

ROAD NUMBER SPECIFIC FEATURES:

#835

  • Solid Black
  • Oil Burner
  • Triple Stack
  • Smoke Lifters
  • Era 1952+.

#844

  • Oil Burner
  • Double Stack
  • Smoke Lifters
  • Era 2017+. High-Shine Black “Race to Promontory” version
  • as used in tandem with Big Boy 4014 on May 4
  • 2019
  • as well as excursion service. Comes in a beautiful limited-edition box with special graphics.

STEAM LOCOMOTIVE FEATURES: 

  • Illuminated number boards
  • Metal handrails
  • Builder’s plates
  • Adjustable cab windows
  • Non-operating classification lights
  • Blackened metal wheels
  • Oil burner
  • Accurate oil tender details
  • Feedwater heater per prototype
  • ATS cabinet per prototype
  • Swing coupler pocket
  • Double or triple smokestack per prototype
  • Single or double generator per prototype
  • Side rods colored to match the prototype
  • Illuminated red signal light except on 2016 version of #844
  • Boiler backhead with full details and printed gauges
  • Synchronized chuff, whistle, bell, blow-down, air compressor, dyno and pop-off valve sounds
  • User-controlled whistle, short whistle, bell, squeal, coupler crash, injector, water stop and light dimmer
  • Individually-applied detail parts, including brass-painted bell and whistle, piping, valves, generator, steps, air pump, air tanks, reverser and coupler lift bar
  • Front coupler pocket can be inserted to mount operating coupler
  • Minimum radius: 22″

NEW FEATURES: 

  • Dual cube speakers for great sound quality
  • Lighted firebox flicker effect with see-through firebox door
  • Upgraded headlight lighting with brighter LED 
  • Improved loco-to-tender connection harness for increased durability and serviceability

SOUND EQUPPED MODELS ALSO FEATURE

  • Tender-mounted DCC decoder with SoundTraxx Tsunami2 sound
  • Dual cube speakers for optimal sound quality
  • Sound units operate in both DC and DCC
  • Full DCC functions available when operated in DCC mode 
  • Chuff, whistle and bell sounds work in DC
  • All functions NMRA compatible in DCC mode
  • Precision slow speed control
  • Many functions can be altered via Configuration Value (CV) changes
  • CV chart included in the box

PROTOTYPE SPECIFIC INFORMATION

In 1939, 15 FEF-2 class 4-8-4s, numbers 820 through 834, were acquired. They shared a family resemblance to the big Challengers and Big Boys. The FEF-2s were built as coal burners with single exhaust stacks, drop coupler pilots and “centipede” tenders that carried 25 tons of coal and 23,500 gallons of water. When they were rebuilt, they received double or triple exhaust stacks.

During the traffic crunch of World War II, ten more 4-8-4s of class FEF-3, numbers 835 through 844, were acquired. The FEF-3 boiler was slightly longer than the FEF-2; plus, the FEF-3 featured double exhaust stacks, cast pilots and cabinets on the tender. Within six months of delivery, they were fitted with “elephant ear” smoke deflectors. Several FEF-3s also received triple exhaust stacks.

All of the 4-8-4s were converted to burn oil after the Second World War. They also wore two-tone gray paint from April 1946 until the mid-1950s. While UP streamliners were all diesel powered, the FEFs worked the secondary trains such as the Pony Express and Overland as well as mail trains. At the time, those trains were usually quite long and consisted of heavyweight cars, requiring all of the power the FEFs could deliver.

Instead of retiring FEF-3 844 in the early 1960s, UP kept it for excursion service and renumbered it to 8444 to allow GP30 844 into the system by 1962. From the mid-1950s until 1987, FEF-3 8444 was painted in the black paint scheme. In September 1987, it was repainted into the two-tone gray scheme with yellow stripe and lettering. After returning to Cheyenne from the Los Angeles Union Station 50th Anniversary celebration in June 1989, FEF-3 8444 was renumbered back to 844. The two-tone gray paint lasted until September 1991.

Scale

HO Scale

Road Name

Union Pacific (UP)

Version

w/ Tsunami2 DCC & Sound

Road Number

835

Locomotive Model

ALCO 4-8-4

Reviews

There are no reviews yet.

Be the first to review “Athearn Genesis 88412 – ALCO FEF-3 4-8-4 W/ DCC & Sound Union Pacific (UP) 835 – HO Scale” Cancel reply

Related products

Sale!
Walthers Mainline 910-58067 - 24' Taconite Ore Car 4-Pack Duluth Missabe & Iron Range (DM&IR) 51503, 51604, 51661, 51881 - HO Scale
Quick View

Uncategorized

Walthers Mainline 910-58067 – 24′ Taconite Ore Car 4-Pack Duluth Missabe & Iron Range (DM&IR) 51503, 51604, 51661, 51881 – HO Scale

$96.51 Original price was: $96.51.$67.56Current price is: $67.56.
Sale!
Kadee 7526 - 50 Ton AAR Standard, 2 Bay Offset Open Hopper Milwaukee Road (MILW) 96863 - HO Scale
Quick View

Uncategorized

Kadee 7526 – 50 Ton AAR Standard, 2 Bay Offset Open Hopper Milwaukee Road (MILW) 96863 – HO Scale

$37.25 Original price was: $37.25.$26.08Current price is: $26.08.
Sale!
Walthers Mainline 910-56630 - 34' 100-Ton 2-Bay Hopper Union Pacific (WP) 10944 - HO Scale
Quick View

Uncategorized

Walthers Mainline 910-56630 – 34′ 100-Ton 2-Bay Hopper Union Pacific (WP) 10944 – HO Scale

$28.95 Original price was: $28.95.$20.27Current price is: $20.27.
Sale!
Walthers Mainline 910-56617 - 34' 100-Ton 2-Bay Hopper Southern (SOU) 103307 - HO Scale
Quick View

Uncategorized

Walthers Mainline 910-56617 – 34′ 100-Ton 2-Bay Hopper Southern (SOU) 103307 – HO Scale

$28.95 Original price was: $28.95.$20.27Current price is: $20.27.
Sale!
Arrowhead Models 1010-3 - Commitee Design Hopper Paint Scheme Set #C Penn Central (PC) 443993 - HO Scale
Quick View

Uncategorized

Arrowhead Models 1010-3 – Commitee Design Hopper Paint Scheme Set #C Penn Central (PC) 443993 – HO Scale

$57.54 Original price was: $57.54.$40.28Current price is: $40.28.
Sale!
Walthers Mainline 910-56604 - 34' 100-Ton 2-Bay Hopper Golden West Service (GVSR) 629566 - HO Scale
Quick View

Uncategorized

Walthers Mainline 910-56604 – 34′ 100-Ton 2-Bay Hopper Golden West Service (GVSR) 629566 – HO Scale

$28.95 Original price was: $28.95.$20.27Current price is: $20.27.
Sale!
Rapido 169037A - Autoflood III Coal Hopper Alliant Energy (LNTX) 8084 - HO Scale
Quick View

Uncategorized

Rapido 169037A – Autoflood III Coal Hopper Alliant Energy (LNTX) 8084 – HO Scale

$60.20 Original price was: $60.20.$42.14Current price is: $42.14.
Sale!
Walthers Mainline 910-56611 - 34' 100-Ton 2-Bay Hopper Granite Rock (GRCX) 1842 - HO Scale
Quick View

Uncategorized

Walthers Mainline 910-56611 – 34′ 100-Ton 2-Bay Hopper Granite Rock (GRCX) 1842 – HO Scale

$28.95 Original price was: $28.95.$20.27Current price is: $20.27.
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping Policy
  • Term and Conditions
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright © 2026 Model Train Hub. All content on this site, including text, graphics, logos, and images, is the property of Model Train Hub and is protected by international copyright laws.
    • HOME
    • HO Scale
      • HO Scale Rolling Stock
      • HO Scale Structures
      • HO Scale Detail Parts
      • HO Scale Track and Accessories
      • HO Scale Locomotives
      • HO Scale Containers and Trailers
      • HO Scale Couplers, Trucks, and Wheelsets
      • HO Scale Vehicles
      • HO Scale Signaling
      • HO Scale Athearn Parts
    • Best Seller
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.