The CIE 141 Class locomotives were built in 1962 by General Motors Electro Motive Division (EMD) in the United States.

Numbered B141 to B177, they were an updated version of the 121 Class locomotives, mechanically very similar but with cabs at each end.

[1][2] They are EMD model JL8 (J = Double Ended Cabs, L = Lightweight Frame, 8= 8-cylinder 567 engine) and although originally fitted with an EMD 8-567CR engine of 960 horsepower (720 kW), all were later fitted with 645 type "power packs" (piston & liner assemblies) for parts standardisation.

As part of the sale, the locomotive received a repaint into its original Black & Tan livery as B141 at Inchicore workshops, where it was held in store.

This locomotive was also repainted into its original Black & Tan livery as B142 at Inchicore, and ran an enthusiasts' special on Wednesday 24 February 2010 with B141.

Following this the locomotive was moved to the RPSI's site at Whitehead, where it saw regular service as a yard shunter.

[5] This locomotive, withdrawn in March 2010, remained in storage at Inchicore until November of that year, when it was transported by Allelys to the Downpatrick and County Down Railway.

[7] This locomotive had been employed on work trains in the Mayo area until withdrawn in February 2010 following a brake failure at Ballyhaunis.