Info Below came from Serial/Product ID Index
The Listing is: Model, Year (if stated), First Serial #
1921-26 Russell Motor Hi-Way Patrol, powered by Allis Chalmers
MH-101-?
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1925-27 Russell No. 2 Motor Patrol, 8′,10′,12′ blade, 8500# weight, powered by Fordson
T-101 to T-450
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1926-28 Russell No. 3 Motor Patrol, 8′,10′,12′ blade, 10250# weight, powered by McCormick-Deering 10-20
1P101 to 1P750
***
1928 Caterpillar No.4 Motor Patrol, 10′ blade, 12500# weight
mfg in Minneapolis
U634-U750, 1928
***
1927-28 Russell No. 5 Motor Patrol, powered by Cletrac K-20
V-101 to V-250
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1928 Russell No. 6 Motor Patrol, 12′ blade, powered by caterpillar twenty
X101-?, 1928
1929-1930 Caterpillar Model 10 Motor Patrol, 8′ blade, 8690# weight, powered by Caterpillar Ten
mfg in Minneapolis
Z1-Z175, 1929
Z176-Z225, 1930
***
1929-1930 Caterpillar 15 Motor Patrol, 12′ blade, 11560# weight, powered by Caterpillar Fifteen
mfg in Minneapolis
Y1-Y290, 1929
Y291-Y525, 1930
***
1928-1931 caterpillar 20 Motor Patrol, 8′,10′,12′,14′,16′ blade, 15000# weight, powered by a Caterpillar Twenty
X101-X200, 1928
X201-400, 1929
X401-X600, 1930
X601-X651, 1931
***
1931 Caterpillar 25 Motor Patrol, 8′,10′,12′,14′,16′ blade, 14365# weight, powered by a Caterpillar Twenty Five
mfg in Minneapolis
X652-X675, 1931
***
1933-34 Caterpillar 28 Motor Patrol, 12′ blade, 14640# weight, powered by a Caterpillar Twenty Eight
5E501+5E525, 1933
5E526-5E549, 1934
***
9 Auto Patrol 8A1 to 8A577 1931-1932
7 Auto Patrol 6D1 to 6D125 1932-33
10 Auto Patrol power unit 3F1 to 3F800 1933-1936
10 Auto Patrol Grader 7E1 to 7E460 1933-1934
10 Auto Patrol Diesel single drive 1K1 to 1K256 1937
10 Auto Patrol Diesel tandem drive 2K1 to 2K747 1937
10 Auto Patrol Gas single drive 3K1 to 3K96 1938
10 Auto Patrol Gas tandem drive 4K1 to 4K119 1938
11 Auto Patrol 1932 7D1 to 7D51 1933
11 Auto Patrol diesel power unit 8G1 to 8G1008 1935-1937
11 Auto Patrol Diesel 9F1 to 9F2084 1934-1937
11 Auto Patrol Diesel 7G1 to 7G1145 1937-1938
11 Auto Patrol Diesel single drive 5K1 to 5K56 1937
11 Auto Patrol Diesel tandem drive 6K1 to 6K1261 193711 Auto Patrol gas single drive 7K1 to 7K30 1937 11 Auto Patrol gas tandem drive 8K1 to 8K122 193712 Motor Grader Diesel tandem drive 9K1 to 9K9999 193812 Motor Grader gas tandem drive 6M1 to 6M56 193912 Motor Grader Diesel tandem
drive 7T1 to 7T3099 1945
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12 Motor Grader diesel tandem drive 8T1
1947…………1-1139
1948………..1140-2250
1949…………2251-3724
1950………….3725-6550
1951…………6551-9000
1952………..90001-11130
1953………..11131-12220
1954…………12221-14800
1955………..14801-17239 (16361 begin oil clutch)
1956………..17240-20500
1957………20,501-21904
Caterpillar 12 Motor Grader Spec Sheet
212 Motor Grader Diesel single drive 1M1 to 1M299 1939212 Motor Grader Gas single drive 8M1 to
8M89 1939
212 Motor Grader Diesel tandem drive 1R1 to 1R1130 1940212 Motor Grader gas tandem drive 2R1 to 2R63 1940212 Motor Grader Diesel tandem drive 1U1 to 1U368 1946212 Motor Grader diesel tandem
9T1 to 9T5220 1947
112 Motor Grader Diesel tandem 2M1 to 2M1516 1939112 Motor Grader gas tandem 3M1 to 3M117 1939112 Motor Grader Diesel single drive 4M1 to 4M57 1939112 Motor Grader gas single 5M1 to 5M75 1939112 Motor Grader diesel tandem drive 3U1 to 3U6651 1947
Charts 1, 2, and 3, were provided by Kent Bates and published in ACMOC issue #39, February 2001 pg. 8-12
Caterpillar Model 14 Motor Grader
