GE Dash 8-40BW

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GE Dash 8-40BW
GE Dash 8-40BW BNSF 566.jpg
Type and origin
Power type Diesel-electric
Builder GE Transportation Systems
Model Dash 8-40BW
 • AAR B-B
Gauge 4 ft 8 12 in (1,435 mm)
Performance figures
Power output 4,000 hp (3,000 kW)
Operators See tables
Class B40-8W
Locale western United States

The Dash 8-40BW, or B40-8W, is a four-axle road diesel locomotive built by GE Transportation Systems for the Atchison, Topeka and Santa Fe Railway (ATSF) in the early 1990s. It is part of the GE Dash 8 Series of freight locomotives.

The locomotive model designation is interpreted as follows: B (B type truck arrangement, 2 axles per truck) 40 (4000 horsepower) -8 (the generation when it was designed, in this case meaning the late 1980s) W (Widecab).

ATSF was the only railroad to order the B40-8W, and a B unit (cabless booster unit) was almost made with it, but because the price would have been the same for B40-8Ws with cabs or without, they decided to order units with cabs only.[citation needed]

All of ATSF's B40-8Ws became part of BNSF Railway, and many of them were repainted into BNSF's "Heritage 2" paint scheme.


In mid-2010, BNSF put 15 B40-8Ws up for sale. These units were on long-term lease and were returned to their lessor. Four units have been sold to the Providence and Worcester Railroad in Massachusetts.[1][2][3] The PW sold one of their B40-8Ws to the Arkansas-Oklahoma Railroad.[citation needed]

Original owners[edit]

Railroad Quantity Road numbers Notes
Atchison, Topeka and Santa Fe Railway 83 500-582
General Electric 1 809 wide cab prototype and testbed, rebuilt from B39-8E #808

Second-hand owners[edit]

Railroad Quantity Former ATSF/BNSF Numbers
Providence and Worcester Railroad 3 Ex-BNSF 561, 562 and 582
Nashville and Eastern Railroad 4 Ex-BNSF 568, 573, 574 and 579
Arkansas - Oklahoma Railroad 3 Ex-BNSF 567, 578, and 581
Great Western Railway of Saskatchewan 2 Ex-BNSF 575 and 563

See also[edit]


  1. ^ "All Time P&W Roster". Providence & Worcester Railfan Club & Muesum. Retrieved February 6, 2017. 
  2. ^ DelliCarpini, Steve (October 11, 2016). "Providence & Worcester". The Diesel Shop. Retrieved February 6, 2017. 
  3. ^ "The Providence & Worcester Railroad". Retrieved February 7, 2017. 
  • McDonnell, Greg (2008). Locomotives: The Modern Diesel and Electric Reference. Erin, Ontario: Boston Mills Press. ISBN 978-1550464931. 
  • Solomon, Brian (2003). GE Locomotives: 110 Years of General Electric Motive Power. St. Paul, MN, USA: MBI Publishing. ISBN 9780760313619. 
  • Solomon, Brian (2010). Modern Locomotives: High Horsepower Diesels 1966–2000. New York: Crestline. ISBN 978-0785826811.