ETS received the final 49 buses of the original 129 bus order in 1999. The first 80 were delivered in 1998. Because of this, the two sets of buses are almost 100% identical. The only real difference was the engine; the 1999's were equipped with Cummins ISC's, which is a rebadged version of the earlier C8.3E. That and the New Flyer logos recieved an update for the 1999 model year. Otherwise, they included the same Allison B400R5 transmissions and feature set as the 1998 models. #4147 had a newer-style Pocatec orange LED destination sign on the front only. #'s 4128 and 4174 recieved Cummins ISL engine upgrades in place of the original C8.3E. Almost all of these buses had their interiors updated with blue ETS insignia seat inserts. All remaining units were equipped with Smartbus GPS & stop announcement systems in 2016. #4166-4174 recieved interior and exterior camera retrofits in 2019. The majority were retired in 2018 upon the arrival of 110 New Flyer XD40's. Many survived into 2019, however with all of the new XD40's, XD60's, and electric buses delivered into 2020, the remaining ten units (#'s 4128, 4129, 4132, 4145, 4150, 4156, 4158, 4159, 4166, 4174) were parked and retired in March 2020.

 

Units 4126-4130	Units 4131-4140	Units 4141-4150	Units 4151-4160	Units 4161-4170
		Units 4171-4174