Union Pacific Railroad

General Notes:

1. Total of 27 units to UP, numbered UP 2500-2526; leased from Helm Financial; rebuilt from GP40s to GP38-3s by Motive Power Industries (Boise Locomotive Co.), Boise, Idaho.
2. Delivered to UP in February 1997 through February 1998 (UP 2500 was the first, delivered on 5 February 1997, and UP 2526 was the last, delivered on 11 February 1998).
3. The rebuilding to GP38-3s included fully reconditioned cabs, 3600 gallon fuel tanks, D78 traction motors, and AR10 traction alternators, along with a Woodward CLC control system, and extended-range dynamic braking; the original 3000-horsepower turbocharged engines were replaced by 2000-horsepower, Roots-blown EMD 645 engines; the GP40-style three-fan configuration for radiator cooling was retained.
4. UP calls these locomotives GP38-3s; MPI calls them GP38M-3s.
5. Renumbered to UP 1000-1026.
6. Individual unit histories:

Notes:

1. UP 2508 (renumbered to UP 1008) is part of a confusing pair of locomotives rebuilt by Motive Power Industries, with the other unit being UP 2412 (renumbered to UP 912). Early reports, and previously published information, showed that both units were rebuilt from the same locomotive. As research progressed throughout the period between 1997 and 2003, locomotive historians were able to develop credible histories for both units. The above information is the best available, as of September 2006.
2. UP 2523 was retired on 13 October 2003 upon expiration of the lease from Helm Financial; for ease computer tracking in UP's computer system, following retirement, it was renumbered from UP 2523 to UP 1023 one day later, on 14 October 2003.
3. UP 2525 was retired on 13 October 2003 upon expiration of the lease from Helm Financial.
4. UP 2526 operated as UP 581 (ex MKT 211) from 15 December 1989 until 31 December 1997, when it was retired and sold to Helm Financial; rebuilt to GP38-3 and leased to UP as UP 2526.

General Notes:

1. Total of 60 units to UP, numbered UP 2527-2588; leased from Helm Financial; rebuilt from GP40s to GP38-2s by Boise Locomotive Co., Boise, Idaho, except UP 2551 and 2562, which were completed as GP38-3s by VMV Enterprises, Paducah, Kentucky, in February 1998.
2. Delivered to UP in February 1998 through March 1999 (UP 2551 was the first, delivered on 6 February 1998, and UP 2570 was the last, delivered on 10 March 1999).
3. UP numbers 2566 and 2571 are blank and not used.
4. The rebuilding to GP38-2s included fully reconditioned cabs, 3600-gallon fuel tanks, D78 traction motors, and AR10 traction alternators, along with extended-range dynamic braking; the original 3000-horsepower turbocharged engines were replaced by 2000-horsepower, Roots-blown EMD 645 engines; the GP40-style three-fan configuration for radiator cooling was retained.
5. Prior to being rebuilt to GP38-2s, 34 units (UP 2527-2555 and 2562) were operated on UP as leased GP40s, numbered UP 850-887, leased from Helm Financial starting in early 1989; less than ten years later, beginning in 1998, all were retired and returned to Helm, and rebuilt to GP38-2s or GP38-3s and leased back to UP.
6. Prior to be rebuilt to GP38-2s, 27 units (UP 2556-2561, 2563-2565, 2567, 2568, 2572-2579, and 2581-2588) operated on UP as former C&NW, D&RGW, and MKT GP40s; sold to Helm Financial on 29 May 1998; rebuilt to GP38-2s and leased to UP.
7. Renumbered to UP 1027-1088, but not in UP 2500 series number sequence.
8. Starting in February 2009, because all 60 units are owned by Helm Financial Corporation and leased to UP on a short-term lease, UP has decided that all of its short-term leased units should be in the numbers and ownership of the lease owner, meaning that these UP 2500 series units (assigned UP 1027 series numbers) are being renumbered to HLCX 1027 series numbers on the dates shown above.
9. Individual unit histories:

Notes:

1. UP 2551 was retired first on 13 October 2003, and again on 15 November 2007 (reasons unknown)

General Notes:

1. Total of 20 units to UP, numbered as UP 350-369 (former B&M numbers); then as UP 2729-2748; then as UP 1229-1248; leased from Connell Leasing.
2. Delivered to UP in 8-17 July 1996; numbered temporarily for UP, with former B&M 300 series numbers, still in Guilford gray paint scheme, with UP reporting marks; repainted to Union Pacific in August and September 1996 (UP 2745, 2746, and 2747 were the first, completed all on 23 August 1996, and UP 2733 was the last, completed on 16 September 1996).
3. Built as Delaware & Hudson 7601-7620 group; D&H purchased by Guilford Transportation Industries in 1983; units rebuilt in July through November 1984 by Morrison Knudsen and renumbered to Guilford/Boston & Maine 350-359 (not in D&H 7601-7620 series sequence) (see Pacific RailNews, Issue 258, May 1985); lease expired on 31 July 1996 and the units were returned to Connell Leasing.

General Notes:

1. Total of two units to UP, numbered UP 2749 and 2750; leased from Helm Financial.
2. Delivered to UP in August 1996.
3. Both units built for Kennecott Copper Corp. (KCC), with high cabs for improved visibility in Kennecott's Bingham Canyon, Utah, copper mine; reassigned by Kennecott to its ore haulage division and renumbered to 100 series; returned to lessor Helm Financial during 1995 and cabs cut down; in service as Helm Leasing (HLCX) 3950 and 3951 until long-term lease to UP.
4. Assigned UP 1249 and 1250 in December 1999, not renumbered prior to being retired.

Notes:

1. UP 2749 was built as KCC 795, transferred to KCC Haulage Division in October 1986, temporarily renumbered to KCC 110, late 1987, renumbered back to 795, April 1988; returned to lessor Helm Financial during August 1995, cab rebuilt to standard configuration, in lease service as HLCX 3950, leased to UP 2749, August 1996; retired by UP in January 2001, returned to Helm; sold to Independent Locomotive Service (ILSX) and used in national lease service as ILSX 1390, painted maroon with yellow lettering.
2. UP 2750 was built as KCC 797, transferred to KCC Haulage Division in October 1986, temporarily renumbered to KCC 111, late 1987, renumbered back to 797, April 1988; returned to lessor Helm Financial during August 1995, cab rebuilt to standard configuration, in lease service as HLCX 3951, leased to UP 2750, August 1996; retired by UP in January 2001, returned to Helm; sold to Independent Locomotive Service (ILSX) and used in national lease service as ILSX 1389, still in UP paint until March 2007 when it was repainted at Horicon in Crawford, Wisconsin, in maroon with yellow lettering, in service during April 2011 on Twin Cities & Western at Moorhead, Minnesota.