The MLW M-420 was a diesel-electric locomotive manufactured between 1973 and 1977 in Montreal, Canada by the Montreal Locomotive Works. A total of 88 units were built for Canadian railways, including eight B units built for the British Columbia Railway ; most of production went to Canadian National . [ 2 ]

2024年8月13日 · The M420 was essentially MLW's version of the C420 with a B-B trucks. The locomotive measures approximately 61 feet in length and weighed, on average, 272,000 pounds. One of the key innovations of the M420 was the use of a wide cab, often called a “comfort cab.”

MLW M-420 / 420R/ 420B; Data Sheet Information Compiled by: JEAN-DENIS BACHAND: New: 16 April 2005: Drawings by: Jacques Belanger-Engine Builder: Montreal Locomotive Works: Engine: 4-cycle Model 251C V12: Bore & Stroke: 9" X 10.5" RPM (Maximum / Minimum) 1050 / 450: Main Generator: GE GTA17:

4 天之前 · What is the difference between a M420 and an M420R? Thanks! The M420 R has rebuilt RS-3 trucks under it. They were only built for the P&W. There is a few minor external differences as well. Not here. You can go to http://www.srnjrr.com and go to the roster section to see pictures of both.

2025年3月17日 · Most M-420 units rode on MLW ZWT (Zero Weight-Transfer) trucks. Other variations of the M-420 were the M-420R, the M-424 built for service in Mexico and the M-420TR switcher. The M-420R was built for the Providence and Worcester Railroad using trade-in parts and rode on Type B trucks, but otherwise resembled the M-420.

2025年2月22日 · Most M-420 units rode on MLW ZWT (Zero Weight-Transfer) trucks. Other variations of the M-420 were the M-420R, the M-424 built for service in Mexico and the M-420TR switcher. The M-420R was built for the Providence and Worcester Railroad using trade-in parts and rode on Type B trucks, but otherwise resembled the M-420.

M-420R. In 1974 and 1975 MLW built five locomotives for the Providence and Worcester Railroad and designated them M-420R. Instead of standard ZWT trucks the P&W units rode on Type B trucks as commonly seen under many older ALCo-designed 4-axle locomotives.

The Montreal Locomotive Works (MLW) M420 is a 2,000 horsepower, four axle road switcher locomotive, purchased by Canadian National, BC Rail, and Providence & Worcester. The locomotive remains in service today on various short-line railroads throughout North America.

The MLW M-420 was a diesel-electric locomotive manufactured between 1973 and 1977 in Montreal, Canada by the Montreal Locomotive Works. A total of 88 units were built for Canadian railways, including eight B units built for the British Columbia Railway; most of production went to Canadian National .

Most M-420 units rode on MLW ZWT (Zero Weight-Transfer) trucks. Other variations of the M-420 were the M-420R, the M-424 built for service in Mexico and the M-420TR switcher. The M-420R was built for the Providence and Worcester Railroad using trade-in parts and rode on Type B trucks, but otherwise resembled the M-420.