The Lionel Boston & Maine GP-9 No. 2346 would be the second issue of this diesel in 1965 and 1966. This engine was equipped with Magnetraction, a horn that was operated by a D Cell battery, a three position directional unit whose control lever was adjustable from underneath the chassis, and single vertical worm drive motor that powers two axles. The body was lighted at both ends, with heat-stamped numbers, lettering, and railroad hearld. There are operating disc couplers at both ends. There are no variations.
All of the Lionel GP-7 and GP-9 units will operate equally well on O and O27 Gauge track.