New York, Susquehanna and Western 142 is a China Railways SY class 2-8-2 "Mikado" type steam locomotive.

It was built as SY-1647M in May 1989 by the Tangshan Locomotive and Rolling Stock Works for the Valley Railroad (VALE) in the United States.

Inspired by VALE, the New York, Susquehanna and Western Railway ordered a similar locomotive, but it sank with its cargo ship en route from China.

So the NYS&W bought VALE's locomotive in late 1991, renumbered it as 142, and used it pull mainline excursion trains throughout New Jersey and New York state.

Since 2003, the locomotive has been owned by the NYS&W Technical and Historical Society, and since 2004, it has been operated by the Belvidere and Delaware River Railway (Bel-Del).

142’s associated class, the SY locomotive, was built for use in switching and freight services in Chinese industrial areas, such as coal mines, petroleum fields, chemical plants, and steel mills.

[5][8] Since the SYs often operated in reverse, their tender tanks, which carried 9.5 tonnes (21,000 pounds) of coal and 25,000 liters (6,600 U.S. gal) of water, were built with sloped-back sides to improve rearward vision for crews.

[14][15] VALE board member Bob Bell and chief mechanical officer J. David Conrad visited three separate factories in China, and they negotiated with them to build a new locomotive specifically for use in North American excursion service.

8419 from the Datong Locomotive Factory, since the state of Iowa allowed standard Chinese boilers for hobbyist and tourist usage.

Trade Fir docked at the Port of Camden in New Jersey, and the two SY locomotives were unloaded at the Beckett Street Terminal.

1647 ran at low speed into the rear of the idling North Cove Express dinner train on passing trackage.

[25][2] Railroad officials initially planned to restore a pair of former Morris County Central locomotives, Nos.

[16][2][26] The company placed a $400,000 order for an SY equipped with some features that 1647 and 1658 were built without, including a separate back-up air tank and safety chains between the locomotive and tender.

[28] While NYS&W officials waited for a $400,000 insurance settlement claim, they mulled their options, including placing a new order with Tangshan.

142 moved onto Susquehanna rails, and for the remainder of its journey to Utica, NYS&W president Walter Rich served as the engineer.

142 hauled an excursion that promoted the opening of the NYS&W's OnTrack shuttle commuter service between Syracuse and Jamesville.

2400, hauled a 14-car excursion from Syracuse to Binghamton, and then traveled over the Canadian Pacific Railway's (CPR) former D&H mainline to Scranton, Pennsylvania.

2400 for a round trip between Scranton and Moscow, but due to problems with installing a National Park Service (NPS) radio, No.

142 was subsequently ferried back to the NYS&W, but on October 6, during the beginning of the journey, the locomotive had to assist a Vermont Railway GP18 with a freight train.

142 was paired with Chesapeake and Ohio 614 to doublehead some Fall Foliage excursions over NJ Transit and Conrail between Hoboken, New Jersey and Port Jervis, New York.

142 hauled another series of Fall Foliage excursions between North Bergen and Warwick, and the trips were to help the Historical Society fund construction of a new locomotive shed to relocate No.

142 led another Lincoln Park Days excursion, but before the return run, one of the locomotive's lubricator pipes fell off, leading a driving axle bearing to overheat and disintegrate.

142 was moved to the NYS&W Historical Society's new shed in Butler, where it underwent some other repairs and had heat sensors installed for the bearings.

[70][71] By year's end, the Susquehanna, which had been reducing its passenger operations as liability insurance costs rose, sold complete ownership of No.

142 operated out of Butler and over the Susquehanna and NJ Transit to Dover, and the following day, it was ferried with a Norfolk Southern local train to Phillipsburg.

142 led the first of three push-pull excursions for the event, but its faulty driving axle bearing began to overheat again, and the sensors alerted the crews before it could disintegrate.

142 lead multiple push-pull excursions with the consist, as part of the 150th anniversary of the NYS&W's Binghamton—Syracuse route, and no issues with the bearing were reported.

[78][79] Alstom officials, who had shut down their West Easton, Pennsylvania, plant, agreed to allow the NYS&W Historical Society to use one of their buildings for the remainder of No.

[83][84] NYS&W Historical Society crews decided to construct a larger shop facility in Phillipsburg, and when it was completed, No.

[86] On August 9, 2024, the locomotive underwent a stationary test fire, and subsequent work is required for it to return to service.