D-101 ALCO DL-640
D-102 ALCO DL-600B
D-103 ALCO HH-600
D-104 ALCO C-630 Low Hood
D-106 ALCO RS-1
D-105 ALCO C-855 B
D-107 ALCO C-855 A
D-108 ALCO DL-701
D-109 ALCO FA-1
D-110 ALCO C-420 Low Hood
D-111 ALCO C-643DH
D-112 ALCO DL-440
D-113 GE U25B
D-114 ALCO DL-600B High Hood
D-115 ALCO C-420 High Hood
D-116 ALCO S-1
D-117 ALCO C-630 High Hood
D-118 ALCO DL-721 -KMT Japan
D-118 ALCO DL-721 -Korea
D-119 BLW RF-16
D-119B BLW RF-16 B-Unit
D-120 FM Erie Built
D-120A BP-20
D-121 ALCO RSD-4/5
D-122 FM Erie Built -Style #2
D-123 ALCO RS-3
D-124 ALCO DL-702
D-124H ALCO DL-702 High Hood
D-125 BLW RT-624
D-126 GE U36B
D-127 MLW RS-18
D-128 GE U28CG
D-129 ALCO S-2
D-130 EMD SD-45
D-131 GE U30CG
D-132 ALCO RS-2
D-133 GE U23B
D-134 GE U-50C
D-135 ALCO C-425
D-137 GE U33C
D-138 ALCO C-628 Low Hood
D-139 ALCO C-628 High Hood
D-140 EMD SW-1
D-141 ALCO C-636
D-142 EMD SD-40
D-142 HB EMD SD-40 High Hood
D-142 LB EMD SD-40L
D-143 EMD GP-40
D-143 HB EMD GP-40 High Hood
D-143L EMD GP-40 Dynamic Brakes
D-144 ALCO C-430
D-145 FM CFA-16-4
D-146 LIMA 1200hp
D-147 GE 44-Ton
D-148 EMD NW-2
D-149 EMD DD40X
D-150 GE 1-30 Gas Turbine
D-151 EMD SW-1500
D-152 EMD E-7
D-153 FM CPA-24-5
D-154 ALCO S-3
D-155 ALCO S-5
D-156 EMD SD45T-2
D-159 EMD SW-10
D-165 ALCO S-4
D-166 EMD SD40-2 UP
D-169 GE Steam Turbine #1
EMD SD40-2
D-176 EMD DD-35A
D-177 EMD DD-35B
D-178 EMD GP-30 Low Hood
D-179 EMD GP-30B
D-182 EMD 'SC' Winton 600 hp
D-186 GP38-2
Sources and Links

The first plastic HO-scale example of this switcher is the very impressive for its time Hobbytown RS-3 model.

Just as the Hobbytown RS-3 was impressive for its day, a new standard was set by the Kato-made Atlas RS-3 first released in 1985. This Japanese produced Atlas plastic ready to run RS-3 is often quoted as the first of the modern or current era diesel models. It was a standard setter and is still among the Atlas offerings in HO, now in the Atlas Classics line. The recent examples come from China and are based on the original Kato tooling of the '80s.