LIRR Modernization Numbers
LIRR MODERNIZATION NUMBERS
(Compiled by Mike Boland, Art Single and Dave
1-222 had red circle with yellow numbers and borders.
Modernized Old Cars: 1-496
(+/-) had yellow circle with red numbers and borders.
Modernization Numbers Roster
car modernization program and renumbering began in December, 1954.
Modernization numbers vs. Road
are the semi-random number assigned to the car AFTER rebuilding, and was stenciled in a circle near the vestibule
doors and had NOTHING to do with the renumbering of the car's ROAD number.
For example: A MU car was #1153 and after modernization became #4153 road
number, and was given a modernization number of #401 (in a round circle).
(See photo below in Part Two)
Thus, the road number of #1153, makes it an MP54A1, according to Kohler's roster.
Do not confuse road number with modernization number.
If an MU car was numbered 401, for example, it became 4401 AFTER the renumbering.
If an MU car was renumbered to 4153, for example, it was 153 PRIOR to renumbering.
If a steam car was numbered 12, for example, it became 7012 AFTER the renumbering.
If a steam car was renumbered to 7142, for example, it was 142 PRIOR to renumbering.
As for abbreviations:
MBM62 stood for Motor Baggage Mail (MU RPO and baggage car) and was 62 feet long.
MPB54 stood for Motor Passenger Baggage (MU combine car) and was 54 feet long.
MP54A, B, C, D were various MU motor passenger cars and were 54 feet long. Some had arched roofs, some had clerestory roofs.
Research: Dave Keller
Part One: NEW Cars (red circle with yellow numbers and borders)
# 2906 modernization #5 P-72 Coach Photo: Anthony
Self-Propelled Rail Diesel Car: Budd RDC 2 #3121 = 1
#3121 Morris Park 11/1960
Steam-type or Diesel-hauled cars:
2901-2925 = 2-26
2926-2980 = 136-190
2501-2522 = 27-48
2601-2642 = 50-91 (note: 2642 was built a year after 2641)
2801-2844 = 92-135
2643-2674 = 191-222
Self-Propelled Rail Diesel Car:
Budd RDC 1 #3101 = 49