Rapido 50229 HO Scale EMD SD9 Diesel Burlington Northern BN 6237 REBatt This upgrade provides the most

This upgrade provides the most protection to the ESC and voltage retention in harsh passes

Series 629 to 636

Fabricated or cast truck sideframes

all individually packaged: #256493

Rapido 50229 HO Scale EMD SD9 Diesel Burlington Northern BN 6237 REBatt This upgrade provides the mostRapido 50229 HO Scale EMD SD9 Diesel Burlington Northern BN 6237 The SD7 was General Motors Electro Motive Divisions first foray into 6 axle power. The SD stood for Special Duty, while the 7 was carried over for the 4 axle GP7 series. This new series of locomotives provided extra tractive effort spread and weight distribution across the six axle trucks. Production lasted from May of 1951 to November of 1953. A total of 188 units were built for 17