Model Train Guides
Bachmann HO C&NW #490699 Center-Flow Hopper: Item 17559 Guide
The Bachmann HO 56-foot ACF Center-Flow Hopper, Chicago & North Western #490699 (item 17559) is a covered hopper model for HO scale freight trains. Bachmann’s official product page identifies the model at 1:87 scale and lists its size as 8.25 inches long, 1.5 inches wide, and 2.2 inches high. The page also gives item number 17559 and UPC 022899175591. Its ACF Center-Flow body has four discharge bays, and the model includes magnetically operated E-Z Mate Mark II couplers and blackened metal RP25 wheels.
Verify the exact C&NW version
Match the railroad name and road number with the catalog details: Chicago & North Western #490699, Bachmann item 17559, and store item number BAC17559. Similar covered hoppers use the same broad car type but differ in railroad, road number, paint, or scale. Check the product photo against the name and number before adding a car to your roster.
- Manufacturer: Bachmann
- Scale: HO, 1:87
- Car type: 56-foot, four-bay ACF Center-Flow covered hopper
- Railroad and number: Chicago & North Western #490699
- Bachmann item: 17559
- UPC: 022899175591
- Model measurements: 8.25 × 1.5 × 2.2 inches
- Store SKU: BAC17559
Bachmann describes the prototype type as developed by American Car & Foundry in the mid-1960s and designed for granular goods such as plastic pellets and animal feed. Four outlets below the car support unloading at compatible facilities. This describes the general Center-Flow design; it does not document the specific service history or commodity for road number 490699.
Covered-hopper role on a layout
The covered body protects bulk material from the weather. On a model railroad, that makes the car a useful way to represent a shipment between an industry and a customer with appropriate unloading equipment. The C&NW markings can anchor a railroad-specific scene or add a distinct road name to a mixed freight. The listing does not claim a cargo load is included with item 17559. Check the current photos and package information before planning a loaded car.
If you use a separate load, measure it against the car and keep it secure through switching and curves. Make sure it does not interfere with the car’s height clearance, couplers, or trucks. You can also run the model empty to represent a return movement; the open operating story does not depend on an included accessory load.
Clearance and operating checks
The 8.25-inch length affects siding capacity and switching space, while the 2.2-inch height and 1.5-inch width help with bridge, tunnel, and adjacent-track planning. Include locomotive length and coupler spacing when estimating track needs. If your layout includes an unloading structure, check both the car body and any added scenery for overhead and side clearance.
Bachmann specifies magnetic E-Z Mate Mark II couplers and blackened metal wheels with RP25 contours. Check that your uncoupling method supports magnetic operation and that coupler height matches the rest of the HO fleet. Test the car on the tightest curves and turnouts it will use. The added weight listed for this model supports tracking, but careful inspection and suitable trackwork remain important for reliable operation.
Use the road number accurately
The product source confirms C&NW #490699 and item 17559 but does not give specific service dates for the individual car. For a scene set in a particular year or location, consult dated photographs or railroad records. The general development date of the ACF hopper design is not a substitute for a road-number-specific historical source.
Quick checklist for item 17559
- Match Chicago & North Western #490699, item 17559, and UPC 022899175591.
- Confirm HO scale and check the 8.25 × 1.5 × 2.2-inch dimensions against layout clearances.
- Verify magnetic E-Z Mate Mark II coupler compatibility and operation.
- Test curves and turnouts on the route where the car will run.
- Confirm whether a load is included before planning a loaded scene.
- Use historical sources for any claim about the specific road number’s service.
These steps connect the item’s listed features to useful layout decisions while keeping general hopper capabilities separate from package contents and individual-car history.
Explore more Bachmann freight cars
Visit the Bachmann C&NW #490699 product page for current store information. Browse the Bachmann model train collection for other HO freight equipment.
Choose an operating role for the car
A covered hopper can represent a protected bulk shipment to a customer with a suitable unloading track, or an empty return after the material has been delivered. For a mixed freight consist, the car may travel with other equipment serving the same route. The C&NW markings identify this particular model, while the surrounding cars and scenery establish the story. Keep these as layout choices unless a source verifies the exact service of #490699.
For a roster, save the item number, road number, product photo, and any separately chosen load information together. This record reduces mix-ups between sibling hopper releases and makes it easier to check the model again if you change its route, couplers, or load. If a scene includes an unloading building, verify that its track alignment and openings suit the measured car rather than relying on a drawing of another hopper.
