The Orion V is the third most iconic bus for the MTA. Many transit agencies ordered these buses from 1989 to 2008. For these facts, I'm listing the facts that I sourced, but I will not include MTA Bus' Ex: Private Bus Lines Orion V and Orion V CNGs. With that all in mind here are some facts about MTA's Orion Vs.
* The 1993 Units were different powertrain-wise. 101-290, 298, and 301-316 were powered by the Detroit Diesel 6V92TA engine with Allison HT747 transmission. 291-294 were powered by the Detroit Diesel Series 50 engine with Allison HT748 transmission. And 295-297, and 299-300 were powered by the Cummins C8.3 engine with Allison HT747 transmission. All of these buses we're repowered with the Detroit Diesel Series 50 EGR engine, with Allison B400R4 transmissions.
* 101-172 and 611-630 were originally delivered with suburban style seating for express routes, but were displaced into local service later on, refitting with fiberglass seating.
* 101-196 were originally numbered 93001-93096, the first two digits, 93, indicates the model year. However, the computer systems couldn't handle 5 digit fleet numbers, resulting to be renumbered to 101-196.
* 240, 246 and 247 were given unknown Orange destination signs.
* The 1994-99 Orion V Diesels had the Detroit Diesel Series 50 engine, with Allison B400R4 transmission. 1993 and 1994-96 orders were the only orders along with the 1994-96 CNG units to have street exhaust.
* 416 and 444 were repowered with the Detroit Diesel Series 50 EGR engine in the early 2000s as a test.
* 317, and 581-610 were originally powered by the Cummins L10G engine, with the ZF Ecomat 5HP590 transmissions. Later on, there were repowered with the Detroit Diesel Series 50G EGR engines, and Allison B400R4 transmissions.
* 631-680 were originally orders for the Flxible Metro Es, being numbered 1900-1949, and the powertrain would've been powered with the Series 50 engine, and Allison VR731RH transmission, but due to the closure of the Flxible Company in 1996, the MTA decided to transfer the award to Orion.
* And lastly, 6000-6002 had Luminator MegaMax destination signs, while 6003-6349 had Luminator Max3000 destination signs.
If there's any more facts, please let me know.