GP40 Diesel
F9-A Diesel
FT-A Diesel
U36B Diesel
U33B Diesel
BQ23-7 Diesel
F40PH Diesel
GP30 Diesel
DD40X Diesel
SD40-2 Diesel
35 Ton Diesel
GP18 Diesel
GP50 Diesel
Bachmann Plus Diesels
F7A and F7B
Saddle Tank 0-6-0
Old West 4-4-0 Steam Engine
Northern 4-8-4 Steam Engine
Overland 4-8-4 Steam Engine
N&W Class J 4-8-4 Steam Engine
Consolidation 2-8-0 Steam Engine
GS4 Daylight 4-8-4 Steam Engine
Texas 2-10-4 Steam Engine
Mikado 2-8-2 Steam Engine
Prairie 2-6-2 Steam Engine
USRA 0-6-0 Steam Engine
Bachmann Plus Steam Engines
Plus Series Consolidation 2-8-0
Plus Series Niagara
Plus Series Class J 4-8-4
Plus Series Northern
Plus Series GS4 Daylight 4-8-4 Steam Engine
Metroliner Electric
E60CP Electric
E60CF Electric
Plasser EM80C

BQ23-7 Diesel Locomotive
No. 745 -1981 Release
No. 41-650-09 -1982 Release
The Chessie example above illustrates the later version of the tooling with opened pilots for truck mounted couplers.

BQ23-7 Diesel Locomotive
No. 746 -1981 Release
No. 41-650-23 -1982 Release

The BQ23-7 was a 1981 addition to the HO-scale diesel roster.  Two roadnames, Chessie and Family Lines (SCL/L&N), were offered.  The model's tooling differs from Bachmann's previous U36B shell and was unique to the BQ23-7 release.  This model's tooling provided the basis for the 1990s Bachmann Plus B23-7 release.
Information on Wikipedia states the GE prototype model is a variant of the B23-7 and was built in 1978-79.  The enhanced cab was a forerunner to today's wide cab locos, but a Q for Quarters was included in the designation and not the standard W for widecab found today. 
Bachmann's Family Lines models passes the prototype test with respect to SCL ownership and the roadnumber of 5131.  The Chessie System model with C&O 8226 is fiction.  The CSX would operate the ten BQ23-7's, following the combination of Chessie System and Seaboard System.
The Bachmann shell may be found in at least two variations.  Originally, the model had frame mounted couplers and a more fully filled out front and rear pilot.  Later examples carved out the pilots and truck mounted couplers were offered.  The model departs Bachmann's line around 1990.

Please note that this site was created for use by those with an interest in HO-scale model trains and does not necessarily represent the current Bachmann line available today. The author is not affiliated with,
nor representing Bachmann in any way.
This site is intended for your enjoyment and information only.