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Union Pacific Railroad

Roster of Diesel and Turbine Locomotives, 1934-2009

This page was last updated on March 25, 2013.

(Return to UP Diesel Roster Index Page)

Roster Listing

EMD SD40-2 -- 14 units
3000 horsepower; C-C trucks; 391,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
4200 Series
New Road
Number
Renumber
Date
Date
Retired
Notes
UP 4202 UP 4162 Aug 1975 75616-1 22 Apr 1986 UP 9910 4 Jul 2000    
UP 4203 UP 4163 Aug 1975 75616-2 22 Apr 1986 UP 9911 28 Jul 2000    
UP 4204 UP 4164 Aug 1975 75616-3 1 Apr 1986 UP 9912 11 Jun 2000    
UP 4205 UP B4205 Aug 1975 75616-4 1 Apr 1986 UP 8943 10 May 2000   1
UP 4206 MP 3206 Aug 1975 75616-5 27 Mar 1986 UP 9913 20 Aug 2000    
UP B4207 UP 4207 Aug 1975 75616-6 31 Mar 1986 (UP 8944)   24 May 2001 2
UP 4208 UP 4168 Aug 1975 75616-7 5 Mar 1986 UP 9914 24 Jul 2000 18 Apr 2000  
UP 4209 UP 4169 Aug 1975 75616-8 5 Mar 1986 UP 9915 24 Jul 2000    
UP 4210 MP 3210 Aug 1975 75616-9 1 May 1986 UP 9916 31 Aug 2000    
UP 4211 MP 3211 Aug 1975 75616-10 1 Sep 1988     21 Aug 1997 3
UP 4212 MP 3212 Aug 1975 75616-11 31 Aug 1988 UP 9917 24 Jul 2000    
UP 4213 MP 3213 Aug 1975 75616-12 20 Feb 1986 UP 9918 1 Sep 2000    
UP 4214 MP 3214 Aug 1975 75616-13 26 Feb 1986 UP 9919 17 Jul 2000    
UP 4215 MP 3215 Aug 1975 75616-14 5 Jun 1986 UP 9920 20 Aug 2000    

General Notes:

a. Total of 14 MP units went to UP at merger, numbered MP 3202-3215.
b. Of the original 14 units, six units (MP 3204, 3206, 3211, 3212, 3213, 3215) were repainted to UP yellow and gray, with Missouri Pacific lettering, in May through September 1985; relettered to UP in March 1986 through September 1988.
c. Beginning in January 1986, all 14 units were assigned to switching service in system hump yards; during early 1998, UP 4202, 4203, 4206, 4207, and 4208 were assigned to hump service at Livonia, La, replacing MP15s.
d. Reflecting the uncertain nature of the MP-to-UP renumbering plan during late 1985 through early 1986, seven units (UP 4202-4205 and 4207-4209) carried UP numbers 4162-4165 and 4167-4169 from January 1986 until April 1986 (MP 3206 was renumbered direct to UP 4206).
e. Renumbered to UP 4202-4215 in February 1986 through September 1988 (UP 4213, ex MP 3213, was the first, completed on 20 February 1986; UP 4211, ex MP 3211, was the last, completed on 1 September 1988).
f. Not equipped with dynamic braking.
g. UP 4205 and B4207 to be renumbered to UP 8943 and 8944, as part of UP 8927-8999 group; other 12 units to be renumbered as part of UP 9882-9950 group.
h. Individual unit histories:
  Road
Number
First
Number
Second
Number
Third
Number
Fourth
Number
Date To
MP Yellow
Date To
4160 Series
  UP 4202 MP 3202 UP 4162       14 Jan 1986
  UP 4203 MP 3203 UP 4163       15 Jan 1986
  UP 4204 MP 3204 UP 4164     6 May 1985 28 Jan 1986
  UP 4205 MP 3205 UP 4165 UP 4205 UP B4205   29 Jan 1986
  UP 4206 MP 3206       2 Aug 1985  
  UP B4207 MP 3207 UP 4167 UP 4207     10 Feb 1986
  UP 4208 MP 3208 UP 4168       3 Feb 1986
  UP 4209 MP 3209 UP 4169       30 Jan 1986
  UP 4210 MP 3210          
  UP 4211 MP 3211       12 Sep 1985  
  UP 4212 MP 3212       14 May 1985  
  UP 4213 MP 3213       12 Aug 1985  
  UP 4214 MP 3214          
  UP 4215 MP 3215       8 May 1985  

Notes:

1. UP 4205 operated in trailing-unit-only status (by removal of refrigerator, toilet, and cab seats) as UP B4205 from 1 December 1992 to 7 October 1997.
2. UP 4207 was changed to trailing unit-only status (by removal of refrigerator, toilet, and cab seats) and renumbered to UP B4207 on 11 September 1992.
3. UP 4211 was wrecked on 22 June 1997 at Devine, Texas; sold for scrap to Smith & Chambers, 30 October 1998.
   

EMD SD40-2 -- 106 units
3000 horsepower; C-C trucks; 393,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
UP Number
Renumbered
To
Date
Renumbered
Date
Retired
Notes
UP B4216 UP 4216 Aug 1978 776099-1 20 Feb 1987 UP 7898 19 Dec 2003 24 May 2001 1
UP B4217 UP 4217 Aug 1978 776099-2 5 Jun 1987 UP 8946 12 Apr 2001    
UP B4218 UP 4218 Aug 1978 776099-3 15 Mar 1989     18 Aug 1997 2
UP B4219 UP 4219 Aug 1978 776099-4 22 Sep 1986     17 Dec 1999 3
UP 4220 MP 3220 Aug 1978 776099-5 27 Oct 1988 UP 9921 8 May 2000    
UP B4221 UP 4221 Aug 1978 776099-6 5 May 1988     20 Jun 2000  
UP B4222 UP 4222 Aug 1978 776099-7 13 Jul 1987     28 Jun 2001 4
UP B4223 UP 4223 Aug 1978 776099-8 21 May 1987 WP 4223 2 Feb 2004 24 May 2001  
UP 4224 MP 3224 Aug 1978 776099-9 19 Nov 1986 UP 9922 12 Sep 2000    
UP B4225 UP 4225 Aug 1978 776099-10 5 May 1986     17 Mar 2000  
UP B4226 UP 4226 Aug 1978 776099-11 7 Jul 1991 UP 8951 6 Apr 2001    
UP B4227 UP 4227 Aug 1978 776099-12 23 Oct 1989     22 Jul 1997 5
UP 4228 MP 3228 Aug 1978 776099-13 12 Feb 1987 UP 9923 15 Sep 2000    
UP B4229 UP 4229 Aug 1978 776099-14 6 Jun 1989 UP 8952 23 Oct 2002    
UP B4230 UP 4230 Aug 1978 776099-15 14 Jul 1988 UP 8953 6 Apr 2001    
UP B4231 UP 4231 Sep 1978 776099-16 20 Jul 1987     22 Nov 2000  
UP B4232 UP 4232 Sep 1978 776099-17 7 May 1986 UP 8955 14 Nov 2002    
UP 4233 MP 3233 Sep 1978 776099-18 3 Feb 1987 UP 9924 19 Jul 2000    
UP 4234 MP 3234 Sep 1978 776099-19 12 Feb 1986 UP 9925 3 Oct 2000    
UP B4235 UP 4235 Sep 1978 776099-20 14 May 1987     29 Aug 2001  
UP B4236 UP 4236 Sep 1978 776099-21 3 Jul 1987 UP 8957 13 Oct 2000    
UP 4237 MP 3237 Sep 1978 776099-22 17 Dec 1987 UP 9926 10 Oct 2000    
UP 4238 MP 3238 Sep 1978 776099-23 21 Nov 1988 UP 9927 28 Aug 2000   6
UP B4239 UP 4239 Sep 1978 776099-24 7 Mar 1989 UP 8958 26 Sep 2000    
UP B4240 UP 4240 Sep 1978 776099-25 15 Mar 1988     18 Jan 1999 7
UP B4241 UP 4241 Sep 1978 776099-26 23 Oct 1990     17 Mar 2000 8
UP B4242 UP 4242 Sep 1978 776099-27 23 Nov 1987     28 Aug 1998 9
UP 4243 MP 3243 Sep 1978 776099-28 23 Feb 1988 UP 9928 20 Aug 2000    
UP B4244 UP 4244 Sep 1978 776099-29 14 Oct 1986     28 Aug 2000 10
UP 4245 MP 3245 Sep 1978 776099-30 23 Oct 1989     4 Sep 1997 11
UP 4246 MP 3246 Sep 1978 776099-31 14 May 1990 UP 9929 16 Aug 2000    
UP B4247 UP 4247 Sep 1978 776099-32 7 Aug 1987     31 Aug 2000 12
UP 4248 MP 3248 Sep 1978 776099-33 11 Feb 1987 UP 9930 15 Sep 2000    
UP B4249 UP 4249 Sep 1978 776099-34 16 Jun 1988     12 Sep 1997 13
UP B4250 UP 4250 Sep 1978 776099-35 13 Jul 1988 UP 8959 21 Sep 2000   8
UP B4251 UP 4251 Sep 1978 776099-36 30 Apr 1986     29 Mar 2000 14
UP B4252 UP 4252 Aug 1978 777100-1 22 Jul 1987     22 Feb 1999 15
UP B4253 UP 4253 Aug 1978 777100-2 18 Apr 1988     8 Oct 1999 16
UP B4254 UP 4254 Aug 1978 777100-3 26 Mar 1987     31 Jul 2001  
UP B4255 UP 4255 Aug 1978 777100-4 6 Jan 1988     5 Jun 1999 17
UP 4256 MP 3256 Aug 1978 777100-5 1 Sep 1988 UP 9931 12 Oct 2000    
UP B4257 UP 4257 Aug 1978 777100-6 21 Nov 1986     5 Mar 1999 18
UP 4258 MP 3258 Aug 1978 777100-7 15 Apr 1991 UP 9932 21 Apr 2000    
UP B4259 UP 4259 Aug 1978 777100-8 22 Mar 1991 UP 8965 22 Mar 2001    
UP B4260 UP 4260 Aug 1978 777100-9 18 Jul 1988 UP 8966 25 Nov 2000    
UP 4261 MP 3261 Aug 1978 777100-10 4 Sep 1987     22 Apr 1998 19
UP B4262 UP 4262 Aug 1978 777100-11 14 Aug 1986     19 Apr 2001  
UP B4263 UP 4263 Aug 1978 777100-12 6 Oct 1986 UP 8968 12 Oct 2000    
UP 4264 MP 3264 Aug 1978 777100-13 22 Jun 1990 UP 9933 23 Sep 2000    
UP B4265 UP 4265 Aug 1978 777100-14 4 Nov 1988     26 Jan 2000  
UP B4266 UP 4266 May 1979 786178-1 10 Nov 1989     22 Jul 1997 20
UP B4267 UP 4267 May 1979 786178-2 6 Apr 1988     23 Mar 2000 21
UP B4268 UP 4268 May 1979 786178-3 7 Jan 1988 UP 8971 10 Sep 2000    
UP 4269 MP 3269 May 1979 786178-4 20 Mar 1991     15 Jul 1998 22
UP 4270 MP 3270 May 1979 786178-5 14 Sep 1993 UP 9934 25 Feb 2000    
UP B4271 UP 4271 May 1979 786178-6 28 Jun 1988 UP 7900 15 Dec 2003 29 Jan 2001 23
UP B4272 UP 4272 May 1979 786178-7 19 May 1988     17 Jan 2001  
UP B4273 UP 4273 May 1979 786178-8 10 Dec 1987 UP 8974 28 Nov 2000 18 Apr 2000 24
UP B4274 UP 4274 May 1979 786178-9 20 Apr 1989 UP 8975 8 Dec 2000    
UP B4275 UP 4275 May 1979 786178-10 10 Oct 1986     3 Feb 1999 25
UP 4276 MP 3276 May 1979 786178-11 24 Apr 1986     8 Jul 1997 26
UP B4277 UP 4277 May 1979 786178-12 28 Jul 1987     29 Nov 2001  
UP 4278 MP 3278 May 1979 786178-13 4 Jan 1988 UP 9935 2 Nov 2000    
UP B4279 UP 4279 May 1979 786178-14 8 Feb 1988     27 Feb 2001  
UP 4280 MP 3280 May 1979 786178-15 17 Aug 1989 UP 9936 29 Nov 2000    
UP B4281 UP 4281 May 1979 786178-16 22 Apr 1986     26 Sep 2001  
UP B4282 UP 4282 May 1979 786178-17 18 May 1989     12 Jul 2001  
UP B4283 UP 4283 May 1979 786178-18 12 Aug 1987     16 Apr 1999 27
UP B4284 UP 4284 May 1979 786178-19 6 Jul 1987     13 Oct 1999 28
UP 4285 MP 3285 May 1979 786178-20 10 Jan 1989 UP 9937 31 Aug 2000    
UP 4286 MP 3286 May 1979 786178-21 16 Oct 1989 UP 9938 7 May 2000    
UP B4287 UP 4287 May 1979 786178-22 30 Jan 1987     18 Apr 2000  
UP B4288 UP 4288 May 1979 786178-23 26 May 1989     21 Apr 1998 29
UP 4289 MP 3289 May 1979 786178-24 16 Feb 1989 UP 9939 15 Jan 2001    
UP B4290 UP 4290 May 1979 786178-25 13 Jan 1988     19 Apr 2001  
UP B4291 UP 4291 May 1979 786178-26 3 Aug 1990 UP 8982 2 Apr 2001    
UP 4292 MP 3292 Jul 1979 786182-1 3 Aug 1988 UP 9940 4 Oct 2000    
UP 4293 MP 3293 Jul 1979 786182-2 13 Jan 1987 UP 9941 10 Nov 2000    
UP B4294 UP 4294 Jul 1979 786182-3 17 Jul 1989 (UP 8983)   19 Dec 2000  
UP B4295 UP 4295 Jul 1979 786182-4 27 May 1986     19 Apr 2001  
UP B4296 UP 4296 Jul 1979 786182-5 21 Jan 1988     22 Nov 2000  
UP B4297 UP 4297 Jul 1979 786182-6 10 Dec 1990     17 Mar 2000  
UP B4298 UP 4298 Jul 1979 786182-7 23 Jul 1986     22 Aug 2001 30
UP B4299 UP 4299 Jul 1979 786182-8 8 Feb 1988     22 Nov 2000  
UP B4300 UP 4300 Jul 1979 786182-9 3 Nov 1986     22 Mar 2000 31
UP B4301 UP 4301 Jul 1979 786182-10 2 Feb 1988 UP 8990 11 Sep 2000    
UP 4302 MP 3302 Dec 1979 796308-1 6 Jun 1986     31 Mar 1999 32
UP B4303 UP 4303 Dec 1979 796308-2 2 May 1989 UP 8991 24 Sep 2000    
UP B4304 UP 4304 Dec 1979 796308-3 17 Dec 1990     24 May 2001  
UP B4305 UP 4305 Dec 1979 796308-4 31 Dec 1986 UP 8993 10 Apr 2001    
UP 4306 MP 3306 Dec 1979 796308-5 23 Aug 1993 UP 9942 15 Oct 2000    
UP 4307 MP 3307 Dec 1979 796308-6 30 May 1986     23 Oct 2000 33
UP 4308 MP 3308 Dec 1979 796308-7 28 Sep 1987 UP 9944 8 Nov 2000    
UP 4309 MP 3309 Dec 1979 796308-8 1 Mar 1988 UP 9945 5 Sep 2000    
UP B4310 UP 4310 Dec 1979 796308-9 8 Mar 1991     28 Jun 1999 34
UP B4311 UP 4311 Dec 1979 796308-10 24 Aug 1989     31 Aug 2000  
UP 4312 MP 3312 Apr 1980 786269-1 5 Dec 1988 UP 9946 12 Oct 2000    
UP B4313 UP 4313 Apr 1980 786269-2 28 Feb 1989 UP 7889 21 Nov 2003 29 Nov 2000 35
UP 4314 MP 3314 Apr 1980 786269-3 6 Jan 1987 UP 9947 22 Oct 2000    
UP B4315 UP 4315 Apr 1980 786269-4 11 Oct 1986     28 Feb 2002  
UP B4316 UP 4316 Apr 1980 786269-5 25 Feb 1987     24 May 2001  
UP B4317 UP 4317 Apr 1980 786269-6 12 Mar 1990     24 May 2001  
UP 4318 MP 3318 Apr 1980 786269-7 23 Jul 1987 WP 4318 21 Feb 2001 12 Oct 2000  
UP 4319 MP 3319 Apr 1980 786269-8 30 Jan 1989     22 Feb 2000 36
UP 4320 MP 3320 Apr 1980 786269-9 19 Feb 1987 UP 9950 21 Aug 2000    
UP B4321 UP 4321 Apr 1980 786269-10 30 Jul 1986     19 Apr 2001  

General Notes:

a. Total of 106 MP units went to UP at merger, numbered MP 3216-3321.
b. Of the original 106 units, 26 units (MP 3226, 3228, 3238, 3239, 3241, 3245, 3246, 3258, 3259, 3265, 3267, 3269, 3270, 3280, 3286, 3289, 3291, 3294, 3297, 3298, 3304, 3306, 3309, 3310, 3311, 3319) were repainted to UP yellow and gray, with Missouri Pacific lettering, in May 1984 through November 1985; relettered to UP in August 1986 through September 1993.
c. A total of 70 units were changed to trailing-unit-only status by removal of refrigerators, toilets, and cab seats, and renumbered with "B" number in April through December 1992; B4273 was renumbered back to UP 4273 on 4 June 1998.
d. Renumbered and repainted to UP 4216-4321 in February 1986 through September1993 (UP 4234, ex MP 3234, was the first, completed on 12 February 1986; UP 4270, ex MP 3270, was the last, completed on 14 September 1993).
e. UP 4291, as MP 3291, was the first unit to be repainted to Missouri Pacific yellow, completed on 14 May 1984.
f. UP 4270, as MP 3270, was the last unit to be painted Missouri Pacific blue, completed in late March 1984; repainted to MP yellow in November 1985.
g. Although not officially retired by UP after being converted to SD38-2s, those units that have been converted are shown above with the rebuild date as their retirement date.
h. Not equipped with dynamic braking.
i. Renumbered to UP 8945-8999 (B-numbered units) and UP 9921-9950.
j. Individual unit histories:
  Road
Number
First
Number
Second
Number
Date To
MP Yellow
Date To
"B" Number
  UP B4216 MP 3216 UP 4216   9 Dec 1992
  UP B4217 MP 3217 UP 4217   25 Jul 1992
  UP B4218 MP 3218 UP 4218   23 Apr 1992
  UP B4219 MP 3219 UP 4219   18 Jun 1992
  UP 4220 MP 3220      
  UP B4221 MP 3221 UP 4221   2 Dec 1992
  UP B4222 MP 3222 UP 4222   7 Oct 1992
  UP B4223 MP 3223 UP 4223   23 Jun 1992
  UP 4224 MP 3224      
  UP B4225 MP 3225 UP 4225   5 Dec 1992
  UP B4226 MP 3226 UP 4226 28 May 1985 10 Jul 1992
  UP B4227 MP 3227 UP 4227   30 Dec 1992
  UP 4228 MP 3228   2 Nov 1984  
  UP B4229 MP 3229 UP 4229   31 Jul 1992
  UP B4230 MP 3230 UP 4230   21 Oct 1992
  UP B4231 MP 3231 UP 4231   21 Jul 1992
  UP B4232 MP 3232 UP 4232   8 Dec 1992
  UP 4233 MP 3233      
  UP 4234 MP 3234      
  UP B4235 MP 3235 UP 4235   1 Dec 1992
  UP B4236 MP 3236 UP 4236   22 Dec 1992
  UP 4237 MP 3237      
  UP 4238 MP 3238   19 Dec 1984  
  UP B4239 MP 3239 UP 4239 29 Apr 1985 19 Jun 1992
  UP B4240 MP 3240 UP 4240   14 Jul 1992
  UP B4241 MP 3241 UP 4241 26 Jun 1985 28 Oct 1992
  UP B4242 MP 3242 UP 4242   8 Jul 1992
  UP 4243 MP 3243      
  UP B4244 MP 3244 UP 4244   9 Sep 1992
  UP 4245 MP 3245   19 Sep 1985  
  UP 4246 MP 3246   17 Jun 1985  
  UP B4247 MP 3247 UP 4247   18 Aug 1992
  UP 4248 MP 3248      
  UP B4249 MP 3249 UP 4249   25 Jul 1992
  UP B4250 MP 3250 UP 4250   29 Jul 1992
  UP B4251 MP 3251 UP 4251   16 Dec 1992
  UP B4252 MP 3252 UP 4252   30 Oct 1992
  UP B4253 MP 3253 UP 4253   30 Jul 1992
  UP B4254 MP 3254 UP 4254   22 Dec 1992
  UP B4255 MP 3255 UP 4255   17 Jul 1992
  UP 4256 MP 3256      
  UP B4257 MP 3257 UP 4257   30 Jul 1992
  UP 4258 MP 3258   12 Mar 1985  
  UP B4259 MP 3259 UP 4259 11 Jul 1985 28 Oct 1992
  UP B4260 MP 3260 UP 4260   27 Jul 1992
  UP 4261 MP 3261      
  UP B4262 MP 3262 UP 4262   18 Nov 1992
  UP B4263 MP 3263 UP 4263   21 Dec 1992
  UP 4264 MP 3264      
  UP B4265 MP 3265 UP 4265 10 Jan 1985 10 Sep 1992
  UP B4266 MP 3266 UP 4266   12 Nov 1992
  UP B4267 MP 3267 UP 4267 8 Jun 1984 22 Dec 1992
  UP B4268 MP 3268 UP 4268   30 Dec 1992
  UP 4269 MP 3269   29 Oct 1985  
  UP 4270 MP 3270   14 Nov 1985  
  UP B4271 MP 3271 UP 4271   19 Jul 1992
  UP B4272 MP 3272 UP 4272   26 Nov 1992
  UP B4273 MP 3273 UP 4273   18 Dec 1992
  UP B4274 MP 3274 UP 4274   15 Sep 1992
  UP B4275 MP 3275 UP 4275   7 Nov 1992
  UP 4276 MP 3276      
  UP B4277 MP 3277 UP 4277   8 Jul 1992
  UP 4278 MP 3278      
  UP B4279 MP 3279 UP 4279   26 Jul 1992
  UP 4280 MP 3280   5 Jul 1985  
  UP B4281 MP 3281 UP 4281   14 Aug 1992
  UP B4282 MP 3282 UP 4282   2 Dec 1992
  UP B4283 MP 3283 UP 4283   13 Dec 1992
  UP B4284 MP 3284 UP 4284   24 Nov 1992
  UP 4285 MP 3285      
  UP 4286 MP 3286   8 Nov 1985  
  UP B4287 MP 3287 UP 4287   24 Jul 1992
  UP B4288 MP 3288 UP 4288   7 Dec 1992
  UP 4289 MP 3289   12 Nov 1985  
  UP B4290 MP 3290 UP 4290   14 Dec 1992
  UP B4291 MP 3291 UP 4291 14 May 1984 17 Jul 1992
  UP 4292 MP 3292      
  UP 4293 MP 3293      
  UP B4294 MP 3294 UP 4294 19 Apr 1985 4 Aug 1992
  UP B4295 MP 3295 UP 4295   31 Aug 1992
  UP B4296 MP 3296 UP 4296   31 Jul 1992
  UP B4297 MP 3297 UP 4297 27 Sep 1985 2 Dec 1992
  UP B4298 MP 3298 UP 4298 28 Aug 1984 5 Nov 1992
  UP B4299 MP 3299 UP 4299   4 Nov 1992
  UP B4300 MP 3300 UP 4300   8 Nov 1992
  UP B4301 MP 3301 UP 4301   22 Nov 1992
  UP 4302 MP 3302      
  UP B4303 MP 3303 UP 4303   4 Aug 1992
  UP B4304 MP 3304 UP 4304 28 Sep 1984 6 Aug 1992
  UP B4305 MP 3305 UP 4305   13 Nov 1992
  UP 4306 MP 3306   19 Aug 1985  
  UP 4307 MP 3307      
  UP 4308 MP 3308      
  UP 4309 MP 3309   18 Jul 1984  
  UP B4310 MP 3310 UP 4310 23 Jan 1985 28 Dec 1992
  UP B4311 MP 3311 UP 4311 1 Jul 1985 3 Sep 1992
  UP 4312 MP 3312      
  UP B4313 MP 3313 UP 4313   23 Feb 1992
  UP 4314 MP 3314      
  UP B4315 MP 3315 UP 4315   1 Dec 1992
  UP B4316 MP 3316 UP 4316   16 Apr 1992
  UP B4317 MP 3317 UP 4317   14 Dec 1992
  UP 4318 MP 3318      
  UP 4319 MP 3319   6 Dec 1984  
  UP 4320 MP 3320      
  UP B4321 MP 3321 UP 4321   5 Aug 1992

Notes:

1. UP B4216 was retired and renumbered to UP 7898 (Peak Power) on 19 December 2003.
2. UP B4218 was rebuilt by UP to SD38-2 2816, completed on 18 August 1997.
3. UP B4219 was rebuilt by UP to UPY SD38-2 847, completed on 17 December 1999.
4. UP B4222 was sold to Larrys Truck Electric (date?); moved to LTE's facility in McDonald, Ohio; scrapped by LTE in May 2007.
5. UP B4227 was rebuilt by UP to SD38-2 2819, completed on 22 July 1997.
6. UP 4238 (also as UP 9927) was one of three units (UP 3626 and 3798 were the other two units) that carried the Operation Redblock substance abuse prevention slogan; UP 4238 was completed on 21 November 1988.
7. UP B4240 was rebuilt by UP to SD38-2 2837, completed on 18 January 1999.
8. UP B4241 was assigned UP 8959; retired in March 2000 and the UP 8959 number was used by UP B4250 in September 2000, which should have been renumbered to UP 8962.
9. UP B4242 was rebuilt by UP to SD38-2 2836, completed on 28 August 1998.
10. UP B4244 (assigned UP 8960) was rebuilt by UP to UPY SD38-2 848, completed on 28 August 2000.
11. UP 4245 was rebuilt by UP to SD38-2 2821, completed on 4 September 1997.
12. UP B4247 (assigned UP 8961) was rebuilt by UP to UPY SD38-2 849, completed on 31 August 2000.
13. UP B4249 was rebuilt by UP to SD38-2 2822, completed on 12 September 1997.
14. UP B4251 (assigned UP 8963) was retired on 29 March 2000; reinstated on 1 May 2000; rebuilt by UP to UPY SD38-2 855, completed on 26 May 2000.
15. UP B4252 was rebuilt by UP to SD38-2 2838, completed on 22 February 1999.
16. UP 4253 was rebuilt by UP to SD38-2 2846, completed on 8 October 1999.
17. UP B4255 was rebuilt by UP to SD38-2 2839, completed on 5 June 1999.
18. UP B4257 was rebuilt by UP to SD38-2 2840, completed on 5 March 1999.
19. UP 4261 was rebuilt by UP to SD38-2 2828, completed on 22 April 1998.
20. UP B4266 was rebuilt by UP to SD38-2 2818, completed on 22 July 1997.
21. UP B4267 (assigned UP 8970) was rebuilt by UP to UPY SD38-2 851, completed on 23 March 2000.
22. UP 4269 was rebuilt by UP to SD38-2 2829, completed on 15 July 1998.
23. UP 4271 was retired and renumbered to UP 7900 (Peak Power) on 15 December 2003.
24. UP 4273 was retired on 18 April 2000; still on property and renumbered to UP 8974 on 28 November 2000.
25. UP B4275 was rebuilt by UP to SD38-2 2841, completed on 3 February 1999.
26. UP 4276 was rebuilt by UP to SD38-2 2817, completed on 8 July 1997.
27. UP B4283 was rebuilt by UP to SD38-2 2843, completed on 16 April 1999.
28. UP B4284 was rebuilt by UP to SD38-2 2844, completed on 13 October 1999.
29. UP B4288 was rebuilt by UP to SD38-2 2826, completed on 21 April 1998.
30. UP B4298, retired in August 2001, was seen on 24 July 2007 lettered as RPRX 4298, supposedly headed for Toronto and conversion to Railpower RP20SD UPY 896; completed as RailPower RPBDB20 in December 2007, released in early March 2008.
31. UP B4300 (assigned UP 8989) was rebuilt by UP to UPY SD38-2 852, completed on 22 March 2000.
32. UP 4302 was rebuilt by UP to SD38-2 2842, completed on 31 March 1999.
33. UP 4307 (assigned UP 9943) was rebuilt by UP to UPY SD38-2 857, completed on 23 October 2000.
34. UP B4310 was rebuilt by UP to SD38-2 2845, completed on 28 June 1999.
35. UP B4313 was retired and renumbered to UP 7889 (Peak Power) on 21 November 2003.
36. UP 4319 (assigned UP 9949) was rebuilt by UP to UPY SD38-2 853, completed on 22 February 2000.

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