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NORFOLK SOUTHERN
DIESEL LOCOMOTIVE ROSTER

EMD SD40-2 Nos. 6073-6206

99 Units Active (41 of those are currently stored)

 

This roster compiled and maintained by Chris R. Toth. 
Roster last updated on July 7, 2025.

 


Active Roster

 

Road
No.

 Previous
No.		 Original NS Subsidiary Build
Date		 Order
No.		 Builder
No.		 Notes
6073 NW 6073 NW 02-1975 75622 75622-1 Equipped with A/C, electric handbrake.
6074 NW 6074 NW 02-1975 75622 75622-2 NS LEADER/PTC Equipped. Equipped with A/C, electric handbrake.
6076 NW 6076 NW 02-1975 75622 75622-4 Equipped with A/C, electric handbrake.
6077 NW 6077 NW 02-1975 75622 75622-5 Equipped with A/C, electric handbrake.
6078 NW 6078 NW 02-1975 75622 75622-6 NS LEADER/PTC Equipped. Equipped with A/C, electric handbrake.
6079 NW 6079 NW 02-1975 75622 75622-7 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6081 NW 6081 NW 02-1975 75622 75622-9 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6082 NW 6082 NW 02-1975 75622 75622-10 Equipped with A/C, electric handbrake.
6083 NW 6083 NW 03-1975 75622 75622-11 Equipped with A/C, electric handbrake.
6084 NW 6084 NW 03-1975 75622 75622-12 Equipped with A/C, electric handbrake.
6085 NW 6085 NW 03-1975 75622 75622-13 Equipped with A/C, electric handbrake.
6086 NW 6086 NW 03-1975 75622 75622-14 Equipped with A/C, electric handbrake.
6087 NW 6087 NW 03-1975 75622 75622-15 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6088 NW 6088 NW 03-1975 75622 75622-16 Equipped with A/C, electric handbrake.
6090 NW 6099 NW 03-1975 75622 75622-18 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6091 NW 6091 NW 03-1975 75622 75622-19 Equipped with A/C, electric handbrake.
6092 NW 6092 NW 03-1975 75622 75622-20 Equipped with A/C, electric handbrake. See additional note below.
Unit currently stored, but still on the active roster.
6093 NW 6093 NW 03-1975 75622 75622-21 Equipped with A/C, electric handbrake.
6095 NW 6095 NW 03-1975 75622 75622-23 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6096 NW 6096 NW 03-1975 75622 75622-24 Equipped with A/C, electric handbrake.
6097 NW 6097 NW 03-1975 75622 75622-25 Equipped with A/C, electric handbrake.
6100 NW 6100 NW 05-1975 75622 75622-28 Equipped with A/C, electric handbrake. 
6101 NW 6101 NW 05-1975 75622 75622-29 Equipped with A/C, electric handbrake.
6102 NW 6102 NW 05-1975 75622 75622-30 Equipped with A/C, electric handbrake.
6103 NW 6103 NW 05-1975 75622 75622-31 Equipped with A/C, electric handbrake.
6105 NW 6105 NW 05-1975 75622 75622-33 NS LEADER/PTC Equipped.
Equipped with A/C, electric handbrake.
6106 NW 6106 NW 05-1975 75622 75622-34 Equipped with A/C, electric handbrake.
6108 NW 6108 NW 05-1975 75622 75622-36 Equipped with A/C, electric handbrake.
6110 NW 6110 NW 05-1975 75622 75622-38 Equipped with A/C, electric handbrake.
6113 NW 6113 NW 05-1975 75622 75622-41 NS LEADER/PTC Equipped.
Equipped with A/C, electric handbrake.
6114 NW 6114 NW 05-1975 75622 75622-42 Equipped with A/C, electric handbrake.
6116 NW 6116 NW 05-1975 75622 75622-44 Equipped with A/C, electric handbrake.
6117 NW 6117 NW 05-1975 75622 75622-45 Equipped with A/C, electric handbrake.
6118 NW 6118 NW 05-1975 75622 75622-46 Equipped with A/C, electric handbrake.
6119 NW 6119 NW 05-1975 75622 75622-47 Equipped with A/C, electric handbrake.
6122 NW 6122 NW 05-1975 75622 75622-50 NS LEADER/PTC Equipped. 
Equipped with A/C, electric handbrake. 
Unit currently stored, but still on the active roster.
6125 NW 6125 NW 05-1975 75622 75622-53 Equipped with A/C, electric handbrake.
6126 NW 6126 NW 05-1975 75622 75622-54 Equipped with A/C, electric handbrake.
6128 NW 6128 NW 05-1975 75622 75622-56 Equipped with A/C, electric handbrake.
6129 NW 6129 NW 05-1975 75622 75622-57 Equipped with A/C, electric handbrake. 
6131 NW 6131 NW 05-1975 75622 75622-59 Equipped with A/C, electric handbrake.
6132 NW 6132 NW 05-1975 75622 75622-60 Equipped with A/C, electric handbrake.
6136 NW 6136 NW 05-1975 75622 75622-64 Equipped with A/C, electric handbrake.
6137 NW 6137 NW 05-1975 75622 75622-65 Equipped with A/C, electric handbrake.
6139 NW 6139 NW 05-1978 776086 776086-1 Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6140 NW 6140 NW 05-1978 776086 776086-2 Equipped for remote control operation.
6141 NW 6141 NW 05-1978 776086 776086-3 Equipped for remote control operation.
6142 NW 6142 NW 05-1978 776086 776086-4 Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6143 NW 6143 NW 05-1978 776086 776086-5 Equipped for remote control operation.
6144 NW 6144 NW 05-1978 776086 776086-6 Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6145 NW 6145 NW 05-1978 776086 776086-7 Equipped for remote control operation.
6146 NW 6146 NW 05-1978 776086 776086-8 Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6147 NW 6147 NW 05-1978 776086 776086-9 Equipped for remote control operation.
6148 NW 6148 NW 05-1978 776086 776086-10 Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6149 NW 6149 NW 05-1978 776086 776086-11 Equipped for remote control operation.
6150 NW 6150 NW 05-1978 776086 776086-12 Equipped for remote control operation.
6151 NW 6151 NW 05-1978 776086 776086-13 Equipped with A/C, electric handbrake.  Equipped for remote control operation.
Equipped with LED front and rear headlights.
6152 NW 6152 NW 05-1978 776086 776086-14 Equipped with A/C, electric handbrake.  Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6153 NW 6153 NW 05-1978 776086 776086-15 Equipped with A/C, electric handbrake.  Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6155 NW 6155 NW 05-1978 776086 776086-17 Equipped with A/C, electric handbrake.
6156 NW 6156 NW 05-1978 776086 776086-18 Equipped with A/C, electric handbrake. See additional note below.
6157 NW 6157 NW 05-1978 776086 776086-19 NS LEADER/PTC Equipped. 
Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6163 NW 6163 NW 05-1978 776086 776086-25 NS LEADER/PTC Equipped.
Equipped with A/C, electric handbrake.
6165 NW 6165 NW 06-1978 776086 776086-27 Equipped with A/C, electric handbrake. Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6166 NW 6166 NW 06-1978 776086 776086-28 Equipped with A/C, electric handbrake.
6167 NW 6167 NW 06-1978 776086 776086-29 Equipped with A/C, electric handbrake.
6168 NW 6168 NW 06-1978 776086 776086-30 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6169 NW 6169 NW 06-1978 776086 776086-31 Equipped with A/C, electric handbrake.
6170 NW 6170 NW 06-1978 776086 776086-32 NS LEADER/PTC Equipped.
Equipped with A/C, electric handbrake.
6173 NW 6173 NW 06-1978 776086 776086-35 NS LEADER/PTC Equipped.
6174 NW 6174 NW 06-1978 776086 776086-36 NS LEADER/PTC Equipped.
Equipped with A/C, electric handbrake.
6175 NW 6175 NW 06-1978 776086 776086-37 Equipped with A/C, electric handbrake. Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6177 NW 6177 NW 06-1978 776086 776086-39 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6178 NW 6178 NW 06-1978 776086 776086-40 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6180 NW 6180 NW 06-1978 776086 776086-42 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6181 NW 6181 NW 06-1978 776086 776086-43 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6182 NW 6182 NW 06-1978 776086 776086-44 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6183 NW 6183 NW 06-1978 776086 776086-45 Equipped with A/C, electric handbrake. 
Unit currently stored, but still on the active roster.
6185 NW 6185 NW 06-1978 776086 776086-47 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6186 NW 6186 NW 06-1978 776086 776086-48 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6187 NW 6187 NW 06-1978 776086 776086-49 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6188 NW 6188 NW 06-1978 776086 776086-50 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6189 NW 6189 NW 12-1980 796353 796353-1 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6190 NW 6190 NW 12-1980 796353 796353-2 Equipped with A/C, electric handbrake.
6191 NW 6191 NW 12-1980 796353 796353-3 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6193 NW 6193 NW 12-1980 796353 796353-5 Equipped with A/C, electric handbrake.
6194 NW 6194 NW 12-1980 796353 796353-6 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6195 NW 6195 NW 12-1980 796353 796353-7 Equipped with A/C, electric handbrake.
6196 NW 6196 NW 12-1980 796353 796353-8 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6197 NW 6197 NW 12-1980 796353 796353-9 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6198 NW 6198 NW 12-1980 796353 796353-10 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6199 NW 6199 NW 12-1980 796353 796353-11 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6200 NW 6200 NW 12-1980 796353 796353-12 Equipped with A/C, electric handbrake.
6201 NW 6201 NW 12-1980 796353 796353-13 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6202 NW 6202 NW 12-1980 796353 796353-14 Equipped with A/C, electric handbrake. Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6203 NW 6203 NW 12-1980 796353 796353-15 Equipped with A/C, electric handbrake. Equipped for remote control operation.
Unit currently stored, but still on the active roster.
6204 NW 6204 NW 12-1980 796353 796353-16 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
6205 NW 6205 NW 12-1980 796353 796353-17 Equipped with A/C, electric handbrake.
Unit currently stored, but still on the active roster.
Road
No.		 Third
No.		 Second
No.		 First
No.		 Original NS Subsidiary Build
Date		 Order
No.		 Builder
No.		 Notes
6206 NS 3821 NS 6206 NW 6206 NW 12-1980 796353 796353-18 Equipped with A/C, electric handbrake. 
See note below for further information on the history of this unit.
Unit currently stored, but still on the active roster.


General Info

NS Model Designation = SD40-2
Horsepower = 3,000
Fuel Tank Capacity = 4,000 gallons
Dynamic Braking = Yes
Control = See Below
Cab Signals = No
LSL (Locomotive Speed Limiter) = No

Control Arrangement
  
Bi-Directional:  
6139-6150, 6173, 6178-6188

Single:
  6073-6108, 6110-6133, 6136-6138, 6151-6153, 6155-6172, 6174-6177, 6189-6206

Units rebuilt with new EMD style cab and low short hood
6073, 6075, 6076, 6079-6082, 6084, 6086-6088, 6091-6092, 6095, 6097, 6101-6103,
6105-6108, 6110-6114, 6118, 6122, 6124, 6128-6129, 6131, 6134, 6137

Units rebuilt with new NS "Admiral" standard cab and low short hood design:
6074, 6077-6078, 6083, 6085, 6089-6090, 6093-6094, 6096, 6098-6100, 6104,
6115-6117, 6119-6121, 6123, 6125-6127, 6130, 6132-6133, 6136, 6138

Units 6177-6206 are equipped to operate as slug masters with NS RPU6 slugs.

Unit 6092 was upgraded 01/2013 with Interstate Electronic Fuel Injection (EFI) and NS-designed split cooling system.
It was overhauled 09-2016 and both the Interstate EFI and NS split cooling system were removed.

Unit 6156 upgraded with electronic fuel injection and has had six 480-volt power receptacles
added to the long hood end pilot for HEP/stand-by power use. 

Unit 6206 was rebuilt in 2004 as a 2,000 horsepower SD38-2 and was renumbered as NS 3821.
The conversion of this unit as a slug master unit for yard service did not work out as well as NS
had hoped, so NS subsequently upgraded 28 SD40-2's (6178-6205) as slug master units for yard
service. The SD40-2's have enough power to allow mating to two RPU6 yard slugs. Due for overhaul,
NS converted the 3821 back to an SD40-2 in May 2013 and restored its original number of 6206.

 


 

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