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Union Pacific Steam Locomotives, 1915-1962

Part 17, UP 4360 to UP 4609

This page was last updated on October 11, 2015.

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UP 0-6-0 -- 20 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
4360 Series
Date
Vacated
Notes
UP 4360 UP 1211 Baldwin 27481 Feb 1906 30 Jun 1915 Sep 1930  
UP 4361 UP 1212 Baldwin 27482 Feb 1906 29 Aug 1915 Sep 1930 1
UP 4362 UP 1213 Baldwin 27488 Feb 1906 17 Feb 1915 May 1928  
UP 4363 UP 1214 Baldwin 27489 Feb 1906 29 Apr 1915 Nov 1927  
UP 4364 UP 1215 Baldwin 27490 Feb 1906 8 Feb 1915 Oct 1927  
UP 4365 UP 1216 Baldwin 27503 Feb 1906 19 Apr 1915 Dec 1933  
UP 4366 UP 1217 Baldwin 27504 Feb 1906 24 Apr 1915 May 1936  
UP 4367 UP 1218 Baldwin 27505 Feb 1906 31 May 1915 Oct 1923 2
UP 4368 UP 1219 Baldwin 27514 Feb 1906 6 Dec 1915 Aug 1929  
UP 4369 UP 1220 Baldwin 27515 Feb 1906 2 Aug 1915 Oct 1923 3
UP 4370 UP 1221 Baldwin 30607 Apr 1907 14 Aug 1915 Oct 1927  
UP 4371 UP 1222 Baldwin 30626 Apr 1907 29 Mar 1915 Oct 1927  
UP 4372 UP 1223 Baldwin 30627 Apr 1907 20 Mar 1915 Oct 1927  
UP 4373 UP 1224 Baldwin 30628 Apr 1907 17 Aug 1915 Oct 1927  
UP 4374 UP 1225 Baldwin 30629 Apr 1907 8 Mar 1915 Sep 1934  
UP 4375 UP 1226 Baldwin 30630 Apr 1907 24 May 1915 Oct 1923 4
UP 4376 UP 1227 Baldwin 30631 Apr 1907 9 Apr 1915 May 1928  
UP 4377 UP 1228 Baldwin 30632 Apr 1907 5 Jun 1915 Oct 1923 5
UP 4378 UP 1229 Baldwin 30674 Apr 1907 21 Aug 1915 Oct 1923  
UP 4379 UP 1230 Baldwin 30675 Apr 1907 12 Apr 1915 Sep 1928 6

Description:

CS Class: S-2
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 142,840 pounds
Weight in Working Order (Engine Only): 142,840 pounds
Weight in Working Order (Engine and Tender): 227,540 pounds
Fuel: Coal

General Notes:

a. UP 4360-4379 were built as UP 1211-1230 in 1906-1907; renumbered to UP 4360-4379 in 1915.

Notes:

1. UP 4361 was sold to Laramie Valley Railroad as their number 2.
2. UP 4367 was transferred to OSL in October 1923; renumbered to OSL 4759.
3. UP 4369 was transferred to OSL in October 1923; renumbered to OSL 4760.
4. UP 4375 was transferred to OSL in October 1923; renumbered to OSL 4761
5. UP 4377 was transferred to OSL in October 1923; renumbered to OSL 4762
6. UP 4378 was transferred to OSL in October 1923; renumbered to OSL 4763
   

UP 0-6-0 -- 1 locomotive

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
UP 4380
Date
Vacated
UP 4380 UP 1231 Brooks 45069 Mar 1908 7 Sep 1915 Aug 1929

Description:

CS Class: S-2
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 142,840 pounds
Weight in Working Order (Engine Only): 142,840 pounds
Weight in Working Order (Engine and Tender): 227,540 pounds
Fuel: Coal

General Notes:

a. UP 4380 was built as UP 1231 in 1908; renumbered to UP 4380 in 1915; vacated in 1923
   

UP 0-6-0 -- 10 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
4381 Series
Date
Vacated
UP 4381 UP 1232 Baldwin 33754 Sep 1909 17 Apr 1915 Nov 1927
UP 4382 UP 1233 Baldwin 33755 Sep 1909 31 May 1915 Dec 1930
UP 4383 UP 1234 Baldwin 33756 Sep 1909 1 Jul 1915 Dec 1930
UP 4384 UP 1235 Baldwin 33757 Sep 1909 23 Aug 1915 Oct 1928
UP 4385 UP 1236 Baldwin 33770 Sep 1909 28 Apr 1915 Nov 1927
UP 4386 UP 1237 Baldwin 33771 Sep 1909 18 Jun 1915 Dec 1936
UP 4387 UP 1238 Baldwin 33772 Sep 1909 8 Jun 1915 May 1928
UP 4388 UP 1239 Baldwin 33773 Sep 1909 15 Feb 1915 Aug 1929
UP 4389 UP 1240 Baldwin 33786 Sep 1909 28 Mar 1915 Oct 1928
UP 4390 UP 1241 Baldwin 33787 Sep 1909 3 Feb 1915 Oct 1927

Description:

CS Class: S-2
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 142,840 pounds
Weight in Working Order (Engine Only): 142,840 pounds
Weight in Working Order (Engine and Tender): 227,540 pounds
Fuel: Coal

General Notes:

a. UP 4381-4390 were built as UP 1232-1241 in 1909 and 1911; renumbered to UP 4381-4390 in 1915.
   

UP 0-6-0 -- 10 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
4391 Series
Date
Vacated
UP 4391 UP 1242 Baldwin 36403 Apr 1911 24 Mar 1915 May 1928
UP 4392 UP 1243 Baldwin 36404 Apr 1911 24 Oct 1915 Dec 1930
UP 4393 UP 1244 Baldwin 36405 Apr 1911 25 Aug 1915 Oct 1928
UP 4394 UP 1245 Baldwin 36406 Apr 1911 18 Feb 1915 Aug 1929
UP 4395 UP 1246 Baldwin 36456 Apr 1911 20 Jul 1915 Nov 1927
UP 4396 UP 1247 Baldwin 36457 Apr 1911 14 Oct 1915 Dec 1936
UP 4397 UP 1248 Baldwin 36458 Apr 1911 27 Feb 1915 Sep 1934
UP 4398 UP 1249 Baldwin 36459 Apr 1911 7 Jul 1915 Nov 1927
UP 4399 UP 1250 (2nd) Baldwin 36460 Apr 1911 5 Mar 1915 May 1928
UP 4400 UP 1251 (2nd) Baldwin 36461 Apr 1911 12 Aug 1915 Aug 1929

Description:

CS Class: S-2
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 142,840 pounds
Weight in Working Order (Engine Only): 142,840 pounds
Weight in Working Order (Engine and Tender): 227,540 pounds
Fuel: Coal

General Notes:

a. UP 4391-4400 were built as UP 1242-1251 in 1911; renumbered to UP 4391-4400 in 1915.
   

UP 0-6-0 -- 15 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
4401 Series
Date
Vacated
Notes
UP 4401 UP 1252 Baldwin 39516 Mar 1913 12 Apr 1915 Dec 1933  
UP 4402 UP 1253 Baldwin 39517 Mar 1913 12 Mar 1915 Dec 1933  
UP 4403 UP 1254 Baldwin 39518 Mar 1913 11 Jun 1915 Dec 1936  
UP 4404 UP 1255 Baldwin 39519 Mar 1913 26 May 1915 Dec 1933  
UP 4405 UP 1256 Baldwin 39520 Mar 1913 19 Feb 1915 Feb 1947  
UP 4406 UP 1257 Baldwin 39521 Mar 1913 6 Feb 1915 Sep 1934  
UP 4407 UP 1258 Baldwin 39522 Mar 1913 30 Jun 1915 1947 1
UP 4408 UP 1259 Baldwin 39531 Mar 1913 1 Jun 1915 Sep 1937 2
UP 4409 UP 1260 Baldwin 39540 Mar 1913 30 Apr 1915 Dec 1933  
UP 4410 UP 1261 Baldwin 39541 Mar 1913 7 Apr 1915 Mar 1956  
UP 4411 UP 1262 Baldwin 39542 Mar 1913 3 Apr 1915 May 1947  
UP 4412 UP 1263 Baldwin 39543 Mar 1913 22 Jun 1915 Apr 1954  
UP 4413 UP 1264 Baldwin 39544 Mar 1913 11 Mar 1915 Jan 1947  
UP 4414 UP 1265 Baldwin 39545 Mar 1913 10 May 1915 Oct 1953  
UP 4415 UP 1266 Baldwin 39546 Mar 1913 18 Apr 1915 Jan 1947  

Description:

CS Class: S-4
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 154,682 pounds
Weight in Working Order (Engine Only): 154,682 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. UP 4401-4415 were built as UP1252-1266 in 1913; renumbered to UP 4401-4415 in 1915.

Notes:

1. UP 4407 was rebuilt to 0-6-0T shop switcher 4407 in 1947; assigned to Pocatello, Idaho; scrapped in July 1956.
2. UP 4408 was sold to St. Joseph Terminal Company in 1937.
   

UP 0-6-0 -- 5 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date To
4416 Series
Fuel Date
Vacated
Notes
UP 4416 UP 1267 Lima 1410 Aug 1914 24 Jul 1915 Coal Mar 1947  
UP 4417 UP 1268 Lima 1411 Aug 1914 4 Aug 1915 Oil Apr 1954  
UP 4418 UP 1269 Lima 1412 Aug 1914 7 Aug 1915 Coal Sep 1934  
UP 4419 UP 1270 Lima 1413 Aug 1914 19 Feb 1915 Coal Jul 1946  
UP 4420 UP 1271 Lima 1414 Aug 1914 7 Oct 1915 Coal May 1958 1

Description:

CS Class: S-4
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 19x26 inches
Maximum Tractive Effort: 27,376 pounds
Weight on Drivers: 154,682 pounds
Weight in Working Order (Engine Only): 154,682 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. UP 4416-4420 were built as UP 1267-1271 in 1914; renumbered to UP 4416-4420 in 1915.

Notes:

1. UP 4420 was assigned to Evanston, Wyoming; out of service by August 1957; retired by UP in May 1958; donated to City of Evanston, Wyoming; moved for display in July 1958; displayed in Railroad Park, near Elm Street and Oak Street in the north part of the city.
   

UP 0-6-0 -- 10 locomotives

Road
Number
Builder Builder
Number
Date
Built
Date
Vacated
Notes
UP 4421 Baldwin 43534 Jul 1916 Feb 1948  
UP 4422 Baldwin 43535 Jul 1916 Apr 1955  
UP 4423 Baldwin 43536 Jul 1916 Oct 1950  
UP 4424 Baldwin 43537 Jul 1916 Feb 1954  
UP 4425 Baldwin 43538 Jul 1916 Apr 1952  
UP 4426 Baldwin 43539 Jul 1916 Oct 1947  
UP 4427 Baldwin 43540 Jul 1916 May 1947  
UP 4428 Baldwin 43541 Jul 1916 Jun 1948 1
UP 4429 Baldwin 43542 Aug 1916 May 1930 2
UP 4430 Baldwin 43543 Aug 1916 Jan 1947  

Description:

CS Class: S-5
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 21x26 inches
Maximum Tractive Effort: 34,400 pounds
Weight on Drivers: 156,000 pounds
Weight in Working Order (Engine Only): 156,000 pounds
Weight in Working Order (Engine and Tender): 245,600 pounds
Fuel: Coal

Notes:

1. UP 4428 was sold to Kansas City Connecting Railroad; scrapped in 1955.
2.

UP 4429 was sold to Northern Pacific Terminal Company (Portland, Oregon) in May 1930 as their number 17; scrapped in 1950.

Northern Pacific Terminal Company was organized in 1882 and operated by ORy&N; operated by ORR&N after 1896; operated by OWRR&N after 1910; NPTCo was jointly owned as follows: NP with 40 percent, OWRR&N with 40 percent, and SP with 20 percent, with SP&S and GN as tenants; in 1965 NPTCo became Portland Terminal Railroad; as of 2001 ownership was 60 percent UP and 40 percent BNSF.

   

UP 0-6-0 -- 20 locomotives

Road
Number
Builder Builder
Number
Date
Built
Fuel Date
Vacated
Notes
UP 4431 Baldwin 47969 Mar 1918 Coal Dec 1947  
UP 4432 Baldwin 48029 Mar 1918 Coal Dec 1947  
UP 4433 Baldwin 48078 Mar 1918 Coal Dec 1953  
UP 4434 Baldwin 48079 Mar 1918 Oil Jul 1954 1
UP 4435 Baldwin 48199 Mar 1918 Oil May 1948  
UP 4436 Baldwin 48200 Mar 1918 Oil Feb 1958 2
UP 4437 Baldwin 48271 Apr 1918 Coal Jun 1958  
UP 4438 Baldwin 48272 Apr 1918 Oil Jul 1947  
UP 4439 Baldwin 48273 Apr 1918 Oil Aug 1957 3
UP 4440 Baldwin 48274 Apr 1918 Coal Mar 1947 4
UP 4441 Baldwin 48275 Apr 1918 Coal Feb 1949  
UP 4442 Baldwin 48276 Apr 1918 Coal Apr 1960 5
UP 4443 Baldwin 48351 Apr 1918 Oil Feb 1948  
UP 4444 Baldwin 48352 Apr 1918 Oil Dec 1953  
UP 4445 Baldwin 48353 Apr 1918 Oil Aug 1947  
UP 4446 Baldwin 48567 May 1918 Oil May 1956  
UP 4447 Baldwin 48568 May 1918 Oil Jul 1956  
UP 4448 Baldwin 48668 May 1918 Oil Jan 1956  
UP 4449 Baldwin 48669 May 1918 Oil Jul 1956  
UP 4450 Baldwin 48728 May 1918 Oil Apr 1947  

Description:

CS Class: S-5
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 21x26 inches
Maximum Tractive Effort: 34,400 pounds
Weight on Drivers: 156,000 pounds
Weight in Working Order (Engine Only): 156,000 pounds
Weight in Working Order (Engine and Tender): 245,600 pounds
Fuel: (see above)

General Notes:

a. Photographs show that UP 4438 and 4439 were assigned to the Los Angeles area from about 1935 to the end of their careers in 1947 and 1957, respectively.

Notes:

1. UP 4434 was sold to Bunker Hill and Sullivan Mining and Concentrate Company, Kellogg, Idaho.
2.

UP 4436 was originally a coal-burner and was originally equipped with 4,500 gallon slope-back tender, like the other Class S-5 switchers. At some point after January 1938 and before January 1943, its tender was swapped for a 7,000 gallon Vanderbilt, the type which it currently has. Gordon McCulloh's research suggests that at the time of the tender swap, this engine was also converted to oil fuel. The standard "switching oil tank" (narrowed at the top for visibility) holds 2,420 gallons of oil.

UP 4436 worked in Nebraska until the WW II era when it was moved to the Portland, Oregon area; moved to Evanston, Wyoming, after 1949 at the same time that most other steam locomotives were moved east from the Northwestern District; still in operation Evanston as late as October 1957 (likely the last steam locomotive assigned to Evanston); retired by UP in February 1958; donated to City of Ogden, Utah, and displayed with SP 0-6-0 1297 at Affleck Park (display dedicated on July 18, 1959); moved to Ogden Union Station in 1993.

3. UP 4439 was the last operating steam locomotive in the Los Angeles area; donated in August 1957 to Travel Town in Griffith Park, Los Angeles, California.
4. UP 4440 was sold to St. Joseph Terminal Company.
5. UP 4442 was assigned as the Omaha depot switcher, with chrome-plated cylinder covers, nickel-plated drive rods, and its boiler jacket extended over its smokebox and painted gray; moved to Las Vegas in the late 1930s; donated for exhibition; displayed at Clark County Museum, Henderson, Nevada.
   

UP 0-6-0 -- 10 locomotives (USRA Pattern)

Road
Number
Builder Builder
Number
Date
Built
Date
Vacated
1920 UP
Number
UP 4451 (1st) Pittsburgh 60425 Dec 1918 Sep 1920 UP 4600
UP 4452 (1st) Pittsburgh 60426 Dec 1918 Sep 1920 UP 4601
UP 4453 (1st) Pittsburgh 60427 Dec 1918 Sep 1920 UP 4602
UP 4454 (1st) Pittsburgh 60428 Dec 1918 Sep 1920 UP 4603
UP 4455 (1st) Pittsburgh 60429 Dec 1918 Sep 1920 UP 4604
UP 4456 (1st) Pittsburgh 60430 Dec 1918 Sep 1920 UP 4605
UP 4457 (1st) Pittsburgh 60431 Dec 1918 Sep 1920 UP 4606
UP 4458 (1st) Pittsburgh 60432 Dec 1918 Sep 1920 UP 4607
UP 4459 (1st) Pittsburgh 60433 Dec 1918 Sep 1920 UP 4608
UP 4460 (1st) Pittsburgh 60434 Dec 1918 Sep 1920 UP 4609

Description:

CS Class: S-Special
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 21x28 inches
Maximum Tractive Effort: 39,100 pounds
Weight on Drivers: 165,000 pounds
Weight in Working Order (Engine Only): 165,000 pounds
Weight in Working Order (Engine and Tender): 324,700 pounds
Fuel: Coal

General Notes:

a. All 10 locomotives renumbered from UP 4451-4460 to UP 4600-4609 in September 1920 to clear the 4400 series for new S-6 0-6-0 locomotives delivered in October 1920.
   

UP 0-6-0 -- 30 locomotives

Road
Number
Builder Builder
Number
Date
Built
Fuel Date
Vacated
Notes
UP 4451 (2nd) Lima 5988 Oct 1920 Coal Dec 1953  
UP 4452 (2nd) Lima 5989 Oct 1920 Coal May 1947  
UP 4453 (2nd) Lima 5990 Oct 1920 Coal Oct 1955 1
UP 4454 (2nd) Lima 5991 Oct 1920 Oil Nov 1947  
UP 4455 (2nd) Lima 5992 Oct 1920 Coal Jan 1949 2
UP 4456 (2nd) Lima 5993 Oct 1920 Coal Apr 1954  
UP 4457 (2nd) Lima 5994 Oct 1920 Coal Mar 1948 3
UP 4458 (2nd) Lima 5995 Oct 1920 Coal Mar 1947  
UP 4459 (2nd) Lima 5996 Oct 1920 Oil Jun 1956  
UP 4460 (2nd) Lima 5997 Oct 1920 Coal Dec 1953  
UP 4461 Lima 5998 Oct 1920 Coal Jul 1956  
UP 4462 Lima 5999 Oct 1920 Coal Jul 1956  
UP 4463 Lima 6000 Oct 1920 Coal May 1947  
UP 4464 Lima 6001 Oct 1920 Oil Jul 1954 4
UP 4465 Lima 6002 Oct 1920 Coal Feb 1947  
UP 4466 Lima 6003 Oct 1920 Coal Jul 1962 5
UP 4467 Lima 6004 Oct 1920 Coal Mar 1954  
UP 4468 Lima 6005 Oct 1920 Oil Mar 1952  
UP 4469 Lima 6006 Oct 1920 Coal May 1947  
UP 4470 Lima 6007 Oct 1920 Coal Jul 1947  
UP 4471 Lima 6008 Oct 1920 Coal Jul 1956  
UP 4472 Lima 6009 Oct 1920 Coal Nov 1947  
UP 4473 Lima 6010 Oct 1920 Coal Apr 1947  
UP 4474 Lima 6011 Oct 1920 Coal Mar 1957  
UP 4475 Lima 6012 Oct 1920 Coal Jul 1956  
UP 4476 Lima 6013 Oct 1920 Coal Apr 1947 6
UP 4477 Lima 6014 Oct 1920 Coal Jul 1956  
UP 4478 Lima 6015 Oct 1920 Coal Mar 1954  
UP 4479 Lima 6016 Oct 1920 Coal Mar 1954  
UP 4480 Lima 6017 Nov 1920 Coal Feb 1954  

Description:

CS Class: S-6
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 21x26 inches
Maximum Tractive Effort: 34,400 pounds
Weight on Drivers: 159,000 pounds
Weight in Working Order (Engine Only): 159,000 pounds
Weight in Working Order (Engine and Tender): 251,800 pounds
Fuel: (see above)

General Notes:

a. UP 4451-4460 were the second series to carry those numbers; UP 4451-4460 (1st) were USRA 0-6-0s renumbered to UP 4600-4609 in September 1920.
b. UP 4466 was the last 0-6-0 in switching service on Union Pacific; operated in the fall of 1958 at Grand Island, Nebraska.

Notes:

1. UP 4453 was sold to Monolith Portland Midwest Company, Laramie, Wyoming in 1955; retired in 1968. (Monolith Portland Midwest Company operated a cement milling plant at Laramie beginning in 1927 as Monolith Portland Cement Company; merged with Monolith Midwest Company in 1929 to form Monolith Portland Midwest Company; Monolith Portland Midwest was sold to Mountain Cement Company after 1987; the mill remains today [2008] at the same location, operating as Mountain Cement Company, a subsidiary of Eagle Materials.)
2.

UP 4455 was sold to Monolith Portland Midwest Company, Laramie, Wyoming in 1949; retired in 1970; donated to Colorado Railroad Museum, Golden, Colorado; remained stored across 44th Avenue from the museum until January 2008 when it was moved onto museum property.

(Monolith Portland Midwest Company operated a cement milling plant at Laramie beginning in 1927 as Monolith Portland Cement Company; merged with Monolith Midwest Company in 1929 to form Monolith Portland Midwest Company; Monolith Portland Midwest was sold to Mountain Cement Company after 1987; the mill remained as of 2008, at the same location, operating as Mountain Cement Company, a subsidiary of Eagle Materials.)

3. UP 4457 was sold to St. Joseph Terminal Company.
4. UP 4464 was sold to Bunker Hill and Sullivan Mining and Concentrate Company, Kellogg, Idaho.
5. UP 4466 was assigned as the Cheyenne shop switcher until it was moved to Grand Island, Nebraska sometime before April 1960; retired at Grand Island in July 1962 and held for historical purposes; donated to Railway & Locomotive Historical Society; moved to California in May 1973; donated to California Railroad Museum, Sacramento, California, in June 1978; restored to service in 1984, with partial support of UP; out of service since 1999 awaiting extensive boiler repairs.
6. UP 4476 was wrecked on March 7, 1947 at Grand Island, Nebraska; retired in April 1947 and scrapped.
   

UP 0-8-0 -- 1 locomotive

1924 UP
Number
First
Number
Second
Number
Date To
UP 4500
Builder Builder
Number
Date
Built
Date
Vacated
UP 4500 UP 1636 UP 416 Jun 1924 Baldwin 18032 Jul 1900 Aug 1946

Description:

Cabside Class: S-57
Drive Wheel Diameter: 57 inches
Cylinders: 21x30 inches
Maximum Tractive Effort: 39,458 pounds
Weight on Drivers: 197,000 pounds
Weight in Working Order (Engine Only): 197,000 pounds
Weight in Working Order (Engine and Tender): 303,000 pounds
Fuel: Coal

General Notes:

a. UP 4500 was UP's only 0-8-0; built as UP 2-8-0 1636 in 1900; renumbered to UP 416 in May 1915; rebuilt to 0-8-0 4500 in June 1924.
   

UP 0-6-0 -- 10 locomotives (USRA Pattern)

1920 UP
Number
First
Number
Date To
4600 Series
Builder Builder
Number
Date
Built
Date
Vacated
UP 4600 UP 4451 (1st) Sep 1920 Pittsburgh 60425 Dec 1918 Jan 1956
UP 4601 UP 4452 (1st) Sep 1920 Pittsburgh 60426 Dec 1918 Dec 1947
UP 4602 UP 4453 (1st) Sep 1920 Pittsburgh 60427 Dec 1918 Feb 1954
UP 4603 UP 4454 (1st) Sep 1920 Pittsburgh 60428 Dec 1918 Jun 1953
UP 4604 UP 4455 (1st) Sep 1920 Pittsburgh 60429 Dec 1918 Oct 1954
UP 4605 UP 4456 (1st) Sep 1920 Pittsburgh 60430 Dec 1918 Sep 1956
UP 4606 UP 4457 (1st) Sep 1920 Pittsburgh 60431 Dec 1918 Dec 1947
UP 4607 UP 4458 (1st) Sep 1920 Pittsburgh 60432 Dec 1918 Jun 1953
UP 4608 UP 4459 (1st) Sep 1920 Pittsburgh 60433 Dec 1918 Oct 1947
UP 4609 UP 4460 (1st) Sep 1920 Pittsburgh 60434 Dec 1918 Dec 1947

Description:

CS Class: S-Special
Cabside Class: S-51
Drive Wheel Diameter: 51 inches
Cylinders: 21x28 inches
Maximum Tractive Effort: 39,100 pounds
Weight on Drivers: 165,000 pounds
Weight in Working Order (Engine Only): 165,000 pounds
Weight in Working Order (Engine and Tender): 324,700 pounds
Fuel: Coal

General Notes:

a. UP 4600-4609 were built as UP 4451-4460 (1st) in 1918; renumbered to UP 4600-4609 to clear the 4400 series for additional CS pattern 0-6-0s.

###