Model Train Guides
Bachmann HO Staley #604 Tank Car: Item 17805 Guide

The Bachmann HO 40-foot Single-Dome Tank Car, Staley #604 (item 17805, store SKU BAC17805) is a company-marked tank-car model for an HO scale freight railroad. Bachmann’s current product page identifies model 17805 and UPC 022899178059. It lists an open underframe, separately applied ladders, brake wheel and metal handrails, added weight, magnetic E-Z Mate Mark II couplers, detailed trucks with see-through sideframes, and blackened metal wheels with RP25 contours. This guide explains how to identify Staley #604 and check it for layout use while keeping historical cargo and service claims tied to actual evidence.
Match the Staley #604 release
Use the company name, road number, and manufacturer item together: Staley #604, Bachmann 17805, and Muncle Mikes SKU BAC17805. The product is listed as a 40-foot Single-Dome Tank Car in HO scale. The road number and item number distinguish it from other tank cars that share a single-dome profile but show different owners or markings.
- Manufacturer: Bachmann
- Scale: HO, 1:87
- Car type: 40-foot single-dome tank car
- Company and number: Staley #604
- Manufacturer item / UPC: 17805 / 022899178059
- Store SKU: BAC17805
Before adding the model to a roster, compare the road number and company lettering in the product image with the listing. Save the UPC, item number, and a clear image together so this Staley release is not confused with a different tank car.
Understand the tank-car context
A tank car carries liquid or gas in a cylindrical vessel mounted on a rail frame. Bachmann describes its single-dome tank-car range as representing riveted tank cars, including examples delivered between the late 1920s and early 1940s before welded designs became more common. That historical note applies generally to the range; it does not prove the build date or service history of prototype #604.
The manufacturer explains that the car type carried varied liquids, including water and oil, and that some older tank cars later served maintenance-of-way operations as water supply cars. The current product page does not identify the specific cargo or later assignment of Staley #604. Use a general tank-car role for an operating scene unless you have reliable historical records for this individual number.
Handle the applied model details with care
Bachmann lists separately applied ladders, a brake wheel, and metal handrails. These parts help define the tank car’s outline but can catch on packaging, scenery, or nearby equipment. Lift the model by the frame where practical, and protect the fittings when placing it in a case or on a crowded shelf.
The product page also lists an open underframe and detailed trucks with see-through sideframes. Inspect the underside during setup, and verify that the trucks move without binding. Blackened metal wheels with RP25 contours should roll freely on clean track. Bachmann specifies added weight for tracking and E-Z Mate Mark II couplers operated magnetically; test the couplers with your layout’s magnets and existing rolling stock before a longer run.
Plan the model on an HO layout
HO scale is 1:87. Bachmann identifies Staley #604 as HO but the current item page does not provide a detailed dimensional drawing or minimum curve radius. If you need a close fit in a display case, siding, or industrial scene, measure the actual model and test it on the intended track. Check truck swing and coupler spacing through curves and turnouts, and make sure ladders or handrails do not catch nearby platforms or structures.
Use slow movements when switching the tank car while you learn its behavior. Watch the model as it passes loading equipment, bridge supports, and adjacent cars. Do not assume that a cargo load or loading accessory is included unless the item listing states it. The visible tank and dome can support several layout scenes, but the specific commodity needs historical or product-level evidence.
Keep prototype claims separate from model facts
The manufacturer data confirms the model’s Staley #604 identity and its listed features. It does not establish the prototype’s precise cargo, operating route, or service dates. If you are building a historically specific scene, look for dated photographs, shipping records, company information, or railroad records linked to the car number. Add the source to a roster note so later operators know why the car appears in that setting.
For collection records, keep the product specifications, your model’s condition, and researched prototype history in separate fields. This is useful if you weather or modify the model, because your notes will still distinguish Bachmann’s release facts from details specific to your example.
Quick checklist for Bachmann 17805
- Match Staley #604 with Bachmann item 17805 and UPC 022899178059.
- Confirm HO scale and the 40-foot Single-Dome Tank Car listing.
- Protect the separately applied ladders, brake wheel, and metal handrails.
- Inspect the open underframe, trucks, and wheel movement.
- Test magnetic E-Z Mate Mark II couplers with your layout and fleet.
- Measure and test the model where clearances are tight.
- Use evidence specific to #604 before naming its cargo or service dates.
Explore Bachmann HO tank cars
Visit the Bachmann Staley #604 product page for current store details. Browse Bachmann model trains and HO scale model trains to compare additional rolling stock.

