Mack » B80 / B81 / B83 / B85 / B86 / B87

The heavy-duty series Mack B80 featured with a metal hood and angular front fenders. They were developed specially for construction and off-highway jobs. The B80 got a reinforced 20-speed transmission and replaced the LJ and LM series.

The model lineup included:
B80 (1956-1965, 368 pcs, EN707B/C gasoline engine, 206-232 hp).
B81 (1955-1966, 2626 pcs, END673(P) or END711 diesel engine, 170-211 hp).
B813 (1956-1966, 969 pcs, Thermodyne ENDT673 diesel engine, 205-211 hp).
B8136 (1957-1966, 85 pcs, 6x6 version of the B813, engines are the same).
B815 (1963-1966, 220 pcs, END864 diesel engine, 255 hp).
B83 (1956-1966, 1164 pcs, NH-220(250) diesel engine, 220-250 hp).
B833 (1956-1966, 216 pcs, NT-series diesel engine, 250-280 hp).
B85 (1956-1964, 77 pcs, NHBS or NHS-6-B diesel engine, 275-290 hp).
B853 (1956-1965, 29 pcs, NTO-series diesel engine, 262-280 hp).
B86 (1957 and 1959, 5 pcs, only SX version, no details).
B87 (1956-1964, 75 pcs, NHRBS and NHRS-6-B diesel engine, 300-320 hp).
B873 (1956-1966, 167 pcs, NRT(-6-B) diesel engine, 300 hp).