Model Train Guides
Bachmann HO New Haven #81023 Quad Hopper: Item 17624 Guide

The Bachmann HO 40-foot Quad Hopper, New Haven #81023 (item 17624, store SKU BAC17624) is a railroad-specific freight car for an HO scale model train layout. Bachmann’s current product page identifies model 17624 and UPC 022899176246, and lists a removable coal load, a separately applied brake wheel, detailed hopper interior and underbody, magnetically operated E-Z Mate Mark II couplers, blackened metal wheels with RP25 contours, and model dimensions of 6.25 × 1.5 × 1.5 inches. This guide explains how to identify the exact New Haven release and plan it for a layout without relying on specifications from a similar car.
Match the New Haven road number
Use the railroad name and number together: Bachmann lists New Haven #81023 as item 17624. The matching Muncle Mikes product record is BAC17624 and identifies HO scale. These identifiers distinguish this release from other 40-foot quad hoppers in Bachmann’s range. A car with the same body style but a different road number or railroad is a different variant, so check the item number and product image before updating a roster or selecting a replacement.
- Manufacturer: Bachmann
- Scale: HO, 1:87
- Car type: 40-foot quad hopper
- Railroad and number: New Haven #81023
- Manufacturer item: 17624
- UPC: 022899176246
- Store SKU: BAC17624
For collection records, keep the model number, UPC, road number, and a clear image together. The exact identifiers are especially useful when several cars share similar dimensions or when a product title is abbreviated in a spreadsheet or order history.
Choose loaded or empty operation
Bachmann lists a removable coal load as included. Keep it in place for a loaded-car appearance, or remove it for a yard scene or empty return movement. That choice can support different operating sessions without changing the model’s basic identity. Check that the load is seated securely before moving the car, and store it in a labeled container if it is removed.
Plan overhead clearance with the load installed if the route passes under bridges, through tunnels, or beneath loading equipment. A car may clear a structure when empty but require extra room when loaded. Avoid substituting a load from another hopper without checking its shape and fit against this interior.
Check fit using Bachmann’s dimensions
The manufacturer lists the model at 6.25 inches long, 1.5 inches wide, and 1.5 inches high. Use those values for initial shelf, case, and siding planning. For actual operation, test the car on your own track. Curves, turnouts, coupler spacing, and adjacent equipment can change the clearance needed at a bridge, platform, tunnel portal, or industrial loading point.
HO scale is 1:87. Match the model with HO track and compatible rolling stock. If a short siding or close display is important, test the car through the full planned route rather than judging from the straight track alone. Check the loaded and empty configurations if you plan to switch between them.
Test the couplers and wheelsets
Bachmann specifies magnetically operated E-Z Mate Mark II couplers. On a layout with uncoupling magnets, test the car over the magnets intended for switching. Check coupler height and operation against the other cars in the train, particularly if the roster mixes manufacturers or replacement parts. A slow run through a turnout and curve can show whether the car stays coupled and tracks smoothly.
The listed wheels are blackened metal with RP25 contours. Roll the car on clean track and confirm that the wheels move freely and the trucks swing without binding. Bachmann also describes detailed trucks with see-through sideframes and a detailed chassis and underbody. Handle the separately applied brake wheel with care when removing the model from packaging or performing routine cleaning.
Keep the New Haven model distinct from prototype history
The Bachmann product page confirms the modeled New Haven identity and item details, but it does not establish the original service dates or assignments of the specific prototype car #81023. If your layout depicts a particular year, verify the number and lettering with dated photographs, railroad rosters, or other historical records. The model’s product page is not evidence that the prototype was active in a particular period.
For a general operating plan, the car can be routed as a coal hopper or staged in a freight yard as part of your scene. For a historically specific layout, note the source that supports the chosen year or route. Keeping that research separate from the manufacturer’s model facts makes the roster useful and easy to revise.
Quick checklist for item 17624
- Match New Haven #81023 with manufacturer item 17624 and UPC 022899176246.
- Confirm HO scale and the 40-foot quad hopper car type.
- Use the listed 6.25 × 1.5 × 1.5-inch measurements for initial planning.
- Check the removable coal load before running loaded or empty.
- Test E-Z Mate Mark II couplers with your magnets and existing cars.
- Check wheel movement and clearance along the full route.
- Use dated records before assigning the number to a particular service year.
Browse Bachmann HO rolling stock
Visit the Bachmann New Haven #81023 product page for current listing information. Browse Bachmann model trains and HO scale model trains to plan compatible freight equipment.

