The 55 Series

In late 1969, Oliver introduced the 55 series of tractors. The 1550 became the 1555 and the 1650 became the 1655. While they looked the same, the 55 series tractors mounted headlights into the top of the grill. The 1750, 1850 and 1950-T became the 1755, 1855 and 1955.

A new addition to the lineup was the 2455 4-wheel drive articulating tractor. It was built by Minneapolis-Moline and used the 504 CID MM engine. In 1971 this model was upgraded to the 2655. This tractor used a 585 CID MM engine and was also marketed as the MM A4T-1600. This tractor was built through 1972.

Fiat also added several models to the 55 Series with the introduction of the 1355, which replaced the 1350. The 1265, 1365 and 1465 were also replacements for previous models.

Oliver also added a few new models that were really Minneapolis-Moline machines. The Oliver 1865 was basically a MM G950. The Oliver 2050 was designed after the MM G1050 and the Oliver 2155 was basically a MM 1350. It used the same engine as the 4-wheel drive 2655.

The 2255 was the first Oliver to use a Caterpillar engine. The early models used the 3150 engine while later ones used a 3208. This was also the last tractor to roll off the assembly line bearing the Oliver name. It was built until 1976.


Serial Number:

Model 1250A & 1255
1969 (1250A) 305 985 - 309 380
1969 (1255) 309 381 - 360 743
1970 (1255) 312 957 - 318 393
1971 (1255) 317 338 - 318 385

Model 1355
1969 505 287 - 512 149
1970 512 698 - 525 078
1971 523 254 - 526 640

Model 1555
1969 218 128 - 220 639
1970 221 295 - 223 072
1971 225 914 - 230 893
1972 232 089 - 235 984
1973 236 883 - 242 906
1974 244 937 - 250 430
1975 256 165 - 262 877

Model 1655
1969 218 025 - 220 399
1970 222 600 - 222 761
1971 225 997 - 230 735
1972 231 772 - 235 188
1973 236 586 - 244 447
1974 244 735 - 255 515
1975 257 700 - 263 340

Model 1755
1970 221 603 - 223 322
1971 226 445 - 229 636
1972 231 415 - 236 163
1973 238 136 - 244 369
1974 245 667 - 253 668
1975 257 515 - 260 346

Model 1855
1969 220 640 - 221 098
1970 221 099 - 223 507
1971 225 508 - 231 365
1972 231 366 - 236 584
1973 236 585 - 244 489
1974 247 436 - 254 772
1975 255 727 - 255 785

Model 1955
1970 222 304 - 223 439
1971 226 858 - 230 456
1972 232 958 - 236 326
1973 239 032 - 244 558
1974 247 871 - 253 050

Model 2055 (MMG1050)
1971 43 100 416 - 43 100 544

Model 2155 (MM G1350)
1971 43 300 043 - 43 300 253

Model 2255
1972 235 598 - 235 999
1973 237 210 - 244 214
1974 244 825 - 252 714
1975 258 472 - 258 571
1976 266 683 - 266 782

Model 2455 (MM A4T-1400)
1967 43 900 001 - 43 900 102
1970 43 900 103 - 43 900 247

Model 2655 (MM A4T-1600)
1971 45 600 188 - 45 600 700
1972 45 600 701 - 45 601 190