BLI 7620 HO Scale GS-4 Southern Pacific 4438 In-Service Black Paragon4 Hybrid Servo Parts these models are equipped with

these models are equipped with both diesel and turbine sounds and smoke

Similar in appearance to the GP7 and GP9

Delrin wheels with bearings and 3mm hardware

Spektrum™ engineers also gave the transmitter extra water-resistance*

roller bearings and bell cranks

BLI 7620 HO Scale GS-4 Southern Pacific 4438 In-Service Black Paragon4 Hybrid Servo Parts these models are equipped withBLI 7620 HO Scale GS 4 Southern Pacific 4438 In Service Black Paragon4 Hybrid The Southern Pacific GS 4 locomotives were a class of 4 8 4 "Northern" type steam locomotives operated by the Southern Pacific from 1941 to 1958. The SP owned a total of 28 GS 4 engines, numbered 4430 through 4457. The GS 4's were quite similar to the SP GS 3 Northerns, except with the GS 4, the SP introduced a dual headlight casing, with the top light being a Mars light,