Athearn 12921 – ACF 4600 3-Bay Centerflow Hopper Rock Island (RI) 800207 – N Scale


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  • Era: 1979+
  • BN: As-Delivered. Late style body with stiffener ribs and low brake wheel.


  • Era: 1978+
  • The Rock: As-Delivered. Late style body with stiffener ribs and low brake wheel.


  • FURX: These cars over their life time went through a few different owners. Due to the expense of repainting an entire car, it was easier to just patch the new road name and number over the previous one. Era: 2000s+
  • SSW and MILW: After the bankruptcy of the Rock in 1980, these cars were quickly leased to railroads with a simple patch, still using the original numbers. Era: Mid 1980s+


  • Era: Late 1970s+
  • C&EI: As-Delivered, Late body with stiffener ribs and low brake wheel.


  • Era: 1979+
  • As-Delivered, late style body with stiffener ribs and low brake wheel.
  • Limited run 3-pack includes pre-CSX merger cars from Seaboard and Family Lines System. Some of these cars were never fully repainted into CSX, roaming the system in their original paint 30+ years after being delivered.


  • Era: Mid 1970s+
  • MP: “buzz saw” logo. As-delivered, late style body with stiffener ribs and low brake wheel.
  • Limited run 3-pack includes pre-merger MP and CE&I cars, and a unique MP “patched” ex-CE&I car.


  • Three body styles:
    • Early- High side ladder & brake wheel, single side stiffener
    • Mid- Low brake wheel, short side ladders both ends, single side stiffener
    • Late- As above but with double side stiffeners (post 1971)
  • Round or trough hatches
  • Photo-etched metal roofwalk
  • Separately applied wire grab irons and stirrup steps
  • Numerous detailed outlet versions
  • Separate brake cylinder, valve and air reservoir with wire brake plumbing
  • Multiple roadnumbers
  • Fully-assembled and ready-to-run out of the box
  • Accurately painted and printed
  • Highly detailed, injection molded body
  • Separately applied brake wheel
  • Screw mounted trucks
  • Body mounted McHenry operating scale knuckle couplers
  • Weighted for trouble free operation
  • Minimum radius: 9¾”
  • Detailed outlets
  • 100-ton trucks with 36” machined metal wheels


The 3-bay CenterFlow covered hopper first entered service in the mid-1960s, built by American Car and Foundry. The cars handle loads such as grain, corn and similar bulk commodities. The Centerflow design relies on the car’s rounded body to provide structural strength – eliminating the traditional center sill, and making gravity unloading easier. Our 3-bay car represents the common 4600 cu.ft. capacity version. The railroads looking to replace their aging 40’ box cars in grain service needed a modern hopper design – one that could operate within the tighter Plate B clearances for light branchline and industrial service. ACF’s design won them many contracts from a plethora of railroads. One can find these cars still in revenue service today in grain trains and other similar service.

Athearn N Scale
ACF 4600 3-Bay Centerflow Hopper
Road Name: Rock Island (RI)
Road Number: 800207

Photo may not show actual road number . Please see description for actual road number

Additional information

Weight 0.21875 lbs
Dimensions 7 × 2 × 1.5 in



Road Name


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