Montreal Locomotive Works

(MLW)

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Production Roster - Alco (MLW) S-3 Switcher
Serial Numbers 77000 to 77999
Years Produced: 1954-1957
Number Produced: 163
Engine Type: 6 cylinder 539
Horse Power: 660
Here is a list of information that we have been able to find on all the MLW S-3's produced. If you have any information, corrections or pictures on any of these units, please forward them to the webmaster
# Serial Number Qty. Order MU Built Owner (s) Reporting Mark Road Number Class Item Location Photo Photo credit
11 77280

MLW Order No. SO-4004

 1   4/1952 Canadian Arsenals , Ltd.   1 ME-660   Montreal, QC MLW / Carson Wiebe
9/1/1981 Westrock Industries   1   Sold 1980 - Lake Windermere, BC  
8/1987 Lehigh Portland Cement   16-52   Corporate name change Exshaw, Alberta  
  Lafarge Canada   16-52   Donated      
7/2002 Rocky Mountain Rail Society RMAX  16-52   Operational 2012 Alberta Prairie Railway Warden, Alberta, Canada

 June, 2011
Kevin Quigley
12 77281 1 N 12/1953 Bathhurst Power & Paper   3   Corporate Name Change
Bathurst Power & Paper Co.
 Old Time Trains
1986 Consolidated Bathurst   3   Corporate Name Change Bathurst, NB, May 14, 1976 Carson Wiebe
1989 Stone Consolidated   3     Portage du Fort, QC    
13 77282 1   6/1952 Essex Terminal ETR 103   Sold

Windsor, Ontario, 1964

 Harry Juday
                 
8/1988 Hearn Harbour Terminal   300     Amhertsburg, Ontario, 8/22/08  
14 77283 7   12/1952-3/1953 Canadian National CN 8462 MS-7b Retired 1964

Converted to Slug & Renumbered

      
1964 B3 0 Renumbered      
1964 302 MY-00a Renumbered    
1978 161 MH-00a Retired 1995     Carson
15 77284 7   12/1952-3/1953 Canadian National CN 8463 MS-7b Retired 1973 Windsor, Ontario, mid 1960s'  
16 77285 7   12/1952-3/1953 Canadian National CN 8464 MS-7b Retired 1966

Converted to Slug & Renumbered

      
1966 B13   Renumbered      
1966 312 MY-00a Renumbered      
1978 354 MY-00a Renumbered    
1986 700   Renumbered      
  269 GY-00m GMD Rebuild

Retired 2009

    
17 77286 7   12/1952-3/1953 Canadian National CN 8465 MS-7b Retired 1964

Converted to Slug & Renumbered

      
1964 B4   Renumbered      
1964 303 MY-00a Renumbered    
1978 162 MH-00a Retired 1988    
18 77287 7   12/1952-3/1953 Canadian National CN 8466 MS-7b Retired 1965

Converted to Slug & Renumbered

   No Pictures of this unit  
1965 B11   Renumbered      
1965 310 MY-00a Renumbered      
1978 164 MH-00a Retired 1997      
19 77288 7   12/1952-3/1953 Canadian National CN 8467 MS-7b Retired 1971   No Pictures of this unit  
20 77289 7   3/1953 Canadian National CN 8468 MS-7b Retired 1970

Sold

 Edmonton, AB 1961 Doug Cummings
6/70 Vancouver Wharves VW 8   Renumbered CNR Toronto Yard J.Bryce Lee
  27   Scrapped 1986 North Vancouver, BC, January 28th 1971 Doug Cummings
21 77634 1   9/1950  MLW Demonstrator   7004   (1) Loaned for Testing

(2) Sold

  No Pictures of this unit  
  (1) Canadian Pacific CP 7004          
  (2) URS (Dealer)              
  Price Brothers   1     Kenogami, QC    
1975 URS (Dealer)   45          
1/1978 Quebec North Shore Paper   45          
22 77635

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP 6500   Retired 5/1984 St. Luc Yard, Montreal, Que., May 23rd., 1977 P.A. Patenaude
23 77636

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP 6501   Retired 11/1984 St. Luc Yard, Montreal, Que., August, 1972  P.A. Patenaude 
24 77637

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP 6502   Retired 5/1984  Winnipeg, MB, 8/25/1978 J. Wilson
25 77638

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP CP 6503   Sold 08/15/72 Winnipeg, Man

 

 Stan Styles
11/1983 United Grain Growers UGG 002   Retired 1987 Vancouver, BC    
1987 West Coast Railway Heritage Park WCXX 6503     Squamish, BC, August 25th, 2007 Frank Valoczy
26 77639

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP 6504   Retired 6/1976 May 26th, 1974, Winnipeg, Man. George Horna
27 77640

MLW Order No. 4000

 6   4-5/1951 Canadian Pacific CP 6505   Retired 11/1981 May 24th, 1977, Moose Jaw, Sk Bruce Chapman
28 77641 3   5/1951 National Harbors Board   D2 (1002)          
  Canadian Railway Museum         Saint-Constant, Quebec. View the full size photo!  
29 77642  3   5/1951 National Harbors Board   D3 (1003)   Retired 10/84   No Pictures of this unit Carson Wiebe
30 77643  3   5/1951 National Harbors Board   D4 (1004)   Retired 10/84 Montreal PQ, 6/8/1974 View the full size photo! Carson Wiebe
31 77752 5   11/1951 National Harbors Board   D5 (1005)   Retired 2/82   No Pictures of this unit  
32 77753  5   11/1951 National Harbors Board   D6 (1006)   Retired 8/84 Montreal PQ, 9/12/1972 View the full size photo! Carson Wiebe
33 77754  5   11/1951 National Harbors Board   D7 (1007)   Retired 10/84   No Pictures of this unit  
34 77755  5   11/1951 National Harbors Board   D8 (1008)   Retired 5/84   No Pictures of this unit  
1/1972 MLW              
8/1973 Stelco   D8   Overhauled 1976      
35 77756 5    11/1951 National Harbors Board   D9 (1009)   Retired 5/84 Montreal PQ, 7/22/1981 View the full size photo! Carson Wiebe
36 77757 12   11/1951-3/1952 Canadian National CN 8450 MS-7a Retired 1966

Converted to Slug & Renumbered

      
1966 B14   Renumbered      
1966 313 MY-00a Renumbered    
1978 355 MY-00a Renumbered    
1986 701 MY-00a Renumbered      
1991 270 GY-00m GMR Rebuild

Retired 2007

    
37 77758 12   11/1951-3/1952 Canadian National CN 8451 MS-7a Retired 1966

Converted to Slug & Renumbered

   Science & Tech. Museum
1966 B15   Renumbered      
1966 314 MY-00a Renumbered    
1978 356 MY-00a Retired 1991    
38 77759 12   11/1951-3/1952 Canadian National CN 8452 MS-7a Retired 1964

Converted to Slug & Renumbered

      
1964 B2 0 Renumbered      
1964 301 MY-00a Renumbered    
1978 160 MH-00a Retired 1991    
39 77760 12   11/1951-3/1952 Canadian National CN 8453 MS-7a Retired 1973   No Pictures of this unit  
40 77761 12 N 1/1952 Canadian National CN 8454 MS-7a Retired 1963

Sold

      
April 1963 Manitoba Paper Company   30   Transferred      
  Abitibi Paper Company Ltd.   101   Sold    
1999 Railside Locomotive Services       (1) Leased

(2) Sold

     
  (1) Prairie Dog Central   8454   Returned      
 August 2005 (2) Parrish & Heimbecker,       Operational Moose Jaw, SK  
41 77762 12   11/1951-3/1952 Canadian National CN 8455 MS-7a Retired 1975      
42 77763 12   11/1951-3/1952 Canadian National CN 8456 MS-7a Retired 1972 Belleville, Ontario, 5 June 1965  
43 77764 12   11/1951-3/1952 Canadian National CN 8457 MS-7a Retired 1965

Sold

   No Pictures of this unit  
4/1965 International Minerals & Chemical   46008     Yarbo, SK    
44 77765 12   11/1951-3/1952 Canadian National CN 8458 MS-7a Retired 1971   No Pictures of this unit  
45 77766 12   11/1951-3/1952 Canadian National CN 8459 MS-7a Retired July, 1975 St. Catharines, Ontario, 6/8/1975 Tim Vermande
46 77767 12   11/1951-3/1952 Canadian National CN 8460 MS-7a Retired 1970   No Pictures of this unit  
47 77768 12   3/1952 Canadian National CN 8461 MS-7a Retired 1972

Sold

   No Pictures of this unit  
  Merrilees (D)              
1962 Acton Limestone Quarries   10   Sold Acton, Ontario    
  Indusmin #   10   Retired 5/1974

Sold

 Acton, Ontario    
1974 Merrilees (D)       scrapped  9/1974.      
48 77769 7   3-5/1952 Canadian Pacific CP 6506   Retired (6/1976). Toronto, ON., 8/1974 Ken Annett
49 77770 7   3-5/1952 Canadian Pacific CP 6507   Retired 9/1973 Montreal, OC., Jean Patenaude
50 77771 7   3-5/1952 Canadian Pacific CP 6508   Retired (3/1978). Montreal, QC.  
51 77772 7   3-5/1952 Canadian Pacific CP 6509   Retired 1/1968

Sold

 Toronto, ON.1974 Vincent J. Porreca
  IW&S Ferrous              
52 77773 7   3-5/1952 Canadian Pacific CP 6510   Retired (3/1978). Regina, SK., 7/13/1965 Bob Loat
53 77774 7   3-5/1952 Canadian Pacific CP 6511   Retired 5/1979 Alyth, Calgary, AB, 1966 Bob Loat
54 77775 7   3-5/1952 Canadian Pacific CP 6512   Retired 5/1982 Winnipeg, MB., 1974 George Horna,
Info retrieved from various sources including:  www.thedieselshop.us
Serial Number 76000 to 76999 Serial Number 79000 to 79999

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Last Edited December 23, 2022

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