Otto Engine serial number list
other information Horsepower RPM fuel Type bore x stroke Flywheel Diameter Full base? year mfd Contact Info
554 4
gas Flame Ignition, crosshead, belted oiler 5 1/2 x 10 56


950 2
gas Flame Ignition, crosshead, belted oiler 4 3/4 x 9 49.5

Dearborn MI
954 2 180 gas Flame Ignition, crosshead, belted oiler 4 3/4 x 9 49.5

OH
1034 1 180 gas Flame Ignition, crosshead, belted oiler 4 1/16" x 8 40 x 2 3/4


1337 has spur bevel gears. Slide is missing Unknown
gas Flame Ignition, crosshead, belted oiler



NC
1401 1 flywheel

gas Flame Ignition, crosshead, belted oiler



rep JW
3696 was made into grinder 1/3
gas inverted 2 7/8 x ? Unknown

York PA
3711 spur Bevel gears & belted oiler 17
gasoline horizontal - tank cooled 8 5/8 x 15 64 1/2 N/A
Harleysville PA
3773 one wheel 1.8
gasoline inverted



Osakis MN
3955 belted oiler 60 180 gasoline horizontal - tank cooled 14.5 x 23.5 78 x 6 3/8
1898 Osakis MN
4044 spur bevel gears 13

horizontal - tank cooled 7 x 16 56
1894
4386 feet off on bed R13? 10.5
gas horizontal - tank cooled



On Loan Coolspring
4676 same style as #5407 5
gas horizontal - tank cooled



PA
4721 13.5 260
horizontal - tank cooled 7 x 15 1/2

1895 Ark
4765 One Wheel 1.8 300 gas inverted 4 x 7 38 X 3 1/2


4980 belted oiler 19

horizontal - tank cooled



WA
5054 12 230
horizontal - tank cooled 7 x 15 1/2 56
1896 Harleysville PA
5105 3 1/2 340 gas horizontal - tank cooled



Waterville ME
5147 belted oiler 36 240 gas horizontal - tank cooled

Full Base 1896 Voluntown CT
5219 Belted Oiler 9 300
horizontal - tank cooled 5 3/4 x 12.5 45 x 3 1/4

Granby CT
5371 3 1/2

vertical



Franklinville NJ
5380 4 400 gasoline Marine engine W/ Reversing Gear



Osakis MN
5407 5 340 gas horizontal - tank cooled 5 x 10 46 1/2 x 3 1/2

Lynbrook NY
5461 13.5 260
horizontal - tank cooled 7 x 16



5514 21
gas horizontal - hopper cooled 8 1/2 x 15 1/2 65 x 3 1/4


5578 belted oiler 3 1/2

horizontal - tank cooled



NJ
5708 8 spoke wheels 50? Belted oiler 50

horizontal - tank cooled



Osakis MN
5756 brass Igniter 5 340
horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Ark
5757 brass igniter 5 340
horizontal - tank cooled 4 3/4 x 10


akron MI
5775 brass igniter 3 1/2 340 gasoline horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/2

Osakis MN
5785 Brass Igniter 3 1/2 360
vertical
30 x 2.5

Osakis MN
5807 3 1/2 340
vertical
30.5 x 2.5

NJ
5834 21 240
horizontal - tank cooled 8 1/2 x 15 65 x 3 1/4

KS
5959 21

horizontal - tank cooled 8 1/2 x 15 65 x 3

Osakis MN
6033 9 1/2
gas horizontal - hopper cooled 6 x 12 45 N/A 1899? Canada
6091 10

horizontal - tank cooled 5 3/4 x 10 44.5 x 2 3/4

KS
6204 15
gasoline Portable



Boone IA
6276 replacement brass igniter 15 260
horizontal - tank cooled 6 3/4


CA
6472 21 240 gasoline horizontal - tank cooled



Finksburg MD
6474 20 200 gas horizontal - tank cooled 8 1/2 x 15 64 1/2 x 3 1/4 Full Base
Prairie Du Sac WI
6481 10 300
horizontal - tank cooled



Beardsley MN
6624 3 1/2

vertical



No. Attleboro MA
6650 3 1/2 340 gas horizontal - tank cooled 4 3/4 x 10 39 1/2 Full Base 1899 Elkton MD
6690 Brass Igniter 9 1/2 300 gas horizontal - tank cooled 6 x 13 45 x 3


6716 Brass igniter 5 340
horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Manchester NH
6736 Brass igniter 5 340
horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Park Ridge IL
6803 15

horizontal - tank cooled



Pasco WA
6845 8 spoke wheels 25

horizontal - tank cooled 9 5/8 x 15 72 x 5 1/2

PA
6890 Brass igniter 5 220 gasoline Engine & pump combined unit 4 3/4 x 10 39 1/2 x 2 1/4"

Osakis MN
7083 Large Nameplate 20 240
horizontal - tank cooled 8 1/2 x 15 1/2 65 x 3 1/8

Salem NJ
7129 15






Laporte IN
7184 5

horizontal - tank cooled



Milford NE
7186 5 340
horizontal - tank cooled



Denver CO
7285 Brass Igniter 9 1/2 300
horizontal - tank cooled 6 x 12 1/2 45 x 3 Full Base
Va Beach VA
7473 Brass Igniter 38 220 gasoline horizontal - tank cooled
72 x 4 Full Base 1901 NJ
7758 5

horizontal - tank cooled


1901
7770 Brass igniter 5 340
horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Woods Hole MA
7786 5 260 gasoline horizontal - tank cooled



Mpls MN
7880 old style vert. 3 1/2 360
vertical
30 x 2.5

MO
8001 5

horizontal - tank cooled



MT
8057 Unknown

horizontal - tank cooled



Los Altos CA
8203 5 340 Unknown horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Dunkerton IA
8265 5

Electric lighting
46 x 3 1/4

Spirit Lake ID
8416 Brass Igniter 3 1/4" wide flywheels 9 300 gasoline Portable 5 3/4 x 12.5 45.5 x 3 1/8 N/A
Schloharie NY
8422 10

horizontal - tank cooled



Canistota SD
08645 9 1/2

horizontal - tank cooled 6 x 12 45 x 3

Roscoe NY
8647 10

horizontal - tank cooled



Black Hills SD
8683 15

horizontal - tank cooled 6 3/4 x 15.5 56 x 3

Akron OH
8769 15

horizontal - tank cooled
54

Warsaw NY
8898 160 four cyl
gasoline vertical

N/A 1901
8910 tin fender 30 220
horizontal - tank cooled 10 x 18 71 x 4.25
1902 Dearborn MI
9070 new style vertical 3 1/2

vertical 5 x 7.5 30 x 2.5

Mainland PA
9212 2

vertical
24 x 2 3/4

Wilm DE
9223 brass Igniter 2

vertical



Oxford NJ
9225 not sure of flywheel width 2

vertical
24 x 2 1/2

Carmichael CA
9408 10

horizontal - tank cooled



Grafton ND
9466 8

horizontal - tank cooled



Franklin NJ
9480 21 240
horizontal - tank cooled 9 x 14 64 x 3 5/16

Mercersburg PA
9483 20

horizontal - tank cooled
64 1/2

Frenchtown NJ
9548 has extra governor weight 5
gasoline horizontal - tank cooled
Unknown N/A
NJ
9609 Brass Igniter 5

horizontal - tank cooled



Coolspring PA
9629 Brass ignitor 21 240
horizontal - tank cooled 8 1/2 x 15 64 1/2 x 3

Dunkerton IA
9636 Bored to 8 5/8" Economy Kero carb Throttle Gov. Tin Fender 21 240 Kerosene horizontal - tank cooled 8 1/2 x 15 64 1/2 x 3 N/A
Elkton MD
9668 14 260 gasoline Portable 6 3/4 x 15 51 x 2.5 N/A
Peach Bottom PA
9978 10 300
horizontal - tank cooled 6 x 12


Laddonia MO
10169 10 300 Unknown horizontal - tank cooled



Angwin CA Napa Valley N of SF
10337 15

horizontal - tank cooled



Gruber Wagon Works
10381 5
gas horizontal - tank cooled 4 3/4 x 10 40 x 2 1/4 Full Base
Carlisle PA
10462 Need igniter/carb 2
gasoline vertical
24 x 2 3/4 N/A
808-929-8485
10475 tin fender. brasss igniter 8 spoke wheels 27 240 producer gas horizontal - tank cooled 11.5 x 19.25 70.5 x 4 Full Base
Marysville WA
10569 Broken Flywheels 21

horizontal - tank cooled 8 1/2 x 15


Osakis MN
10625 Counter Balanced Crank 5 340 gasoline horizontal - tank cooled 4 3/4 x 10 46 x 3 3/8

Pavillion? NY
10662 Unknown






?
10681 5

horizontal - tank cooled 4 3/4 x 10


TN
10802 Brass Igniter Not sure of flywheel width 8 300
horizontal - tank cooled
45

Ann Arbor MI
11226 Special Electric Governor 10 300
Electric lighting 5 3/4 x 12.5


Canfield OH
11294 8 spoke flywheels 4 1/4" crk 25 240
horizontal - tank cooled 9 x 18 70 5/8 x 4

Vineland NJ
11401 25 240 gas horizontal - tank cooled 9 x 18 67 x 4 1/8

Ark
11508 1
gasoline vertical



KS
11607 15

horizontal - tank cooled



Funk NE
11658 Special electric, Counterbalanced Crank Tin Fender 15 260 gasoline horizontal - tank cooled 6 3/4 x 15 64 x 5.5

Coolspring PA
11659 special Electric. counterbalanced crank. tin fender 15 260 gasoline Electric lighting 6 3/4 x 15 64 x 5.5

Voluntown CT
11705 2

vertical



Beverly OH
11786 8 or 10

horizontal - tank cooled 5 3/4 x 12.5 45.5 x 2 3/4

OH
11801 8 or 10

horizontal - tank cooled 5 3/4 x 12.5 45 x 2 3/4

Osakis MN
11881 21

horizontal - tank cooled 8 1/2 x 15 64 1/2 x 3 1/2
1912 Osakis MN
119092 one flywheel w/ outboard bearing 35
diesel horizontal - tank cooled


1923 Ephrata PA at R&T
12016 5 340
horizontal - tank cooled



An
12020 5

horizontal - tank cooled




12224 10 300
horizontal - tank cooled




13631 Ivan Matchner 5
Unknown horizontal - hopper cooled
Unknown N/A
PA
13696 Brass Igniter 5 340 gas horizontal - hopper cooled 5 3/8 x 10 39.5 x 2 Full Base
Lambertville NJ
13768 15

horizontal - tank cooled



NY?
13785 tin fender 21
gasoline
8 1/2 x 14 64 1/2 N/A
Crumpton MD
13818 6 340 gasoline horizontal - tank cooled 5 3/8 x 10 40 x 2 1/4 N/A
OSAKIS MN
13820 25

horizontal - tank cooled



Osakis MN
13914 tin fender 15 230 gasoline horizontal - hopper cooled 6 3/4 x 15.5 51 x 2 3/4 N/A 1914 Elkton MD
14171 with triplex pump 3 1/2

vertical



Coolspring PA
14230 Special Electric 6

Electric lighting
46 x 3 1/4
1913 Cape Cod, MA
14232 Special Electric counterbalanced Crank 6 240
Electric lighting
46 x 3 1/4
1913 Hellam PA
14247 175 190 gas horizontal - tank cooled 21 x 30 9 feet N/A 1924 Coolspring PA
14432 6

horizontal - tank cooled
40 x 2 1/4

Yarmouth ME
14482 Tin fender Portable 8 300 gasoline horizontal - tank cooled 5 3/4 x 12.5 45.5 x 3 1/8
1913 Hellertown PA
14489 Tin fender 8 300
horizontal - tank cooled 5 3/4 x 12.5 45 x 2 3/4


14524 10

horizontal - tank cooled




14535 8 300 gas horizontal - tank cooled 5 3/4 x 12.5 44.5 x 3

Fostoria OH
14546 Changed to Log Splitter 10

horizontal - tank cooled



Rep by RK Rollag
14547 10

horizontal - tank cooled



Rep Tysse/RK
14549 10 300
horizontal - hopper cooled 5 3/4 x 12.5 45.5 x 3 1/8
1913 Glenmoore PA
14673 2 500 two cycle horizontal - hopper cooled



Osqakis MN
14677 S/N may be 14678, not sure 1
gasoline vertical



NJ
14817 2

vertical
24 x 2 1/2


14955 2
two cycle horizontal - hopper cooled
22 x 2 1/8

Harleysville PA
14996 2

vertical



Naples FL
15003 2

vertical



Vista CA
15100 Special Electric 21 230 gas Electric lighting
68 x 6.5 N/A
Tuckahoe MD
15171 it is a 50 or 40?? Throttle. 50 230 gas horizontal - tank cooled
8 spoke

Osakis MN
15235 2
gasoline vertical
24 x 3 1/4

Centerville IA
15251 I beam rod 8 300 gasoline horizontal - hopper cooled



FL
15310 6

horizontal - tank cooled



NJ
15331 tin fender 15

horizontal - tank cooled



Hamill SD
15367 Kero Economy carb Throttle gov 10.9 300 Kerosene horizontal - tank cooled 6 x 12


Laddonia MO
15437 6 340
horizontal - tank cooled



Danville KY
15474 3 1/2

vertical



Ephata PA
15565 Spark Plug 6

horizontal - tank cooled



Bridgeton NJ
15573 Otto Eng Mfg Co tag 5 340 gas horizontal - tank cooled 4 3/4 x 10 40 x 2 1/8

Titusville NJ
15594 10

horizontal - tank cooled 5 3/4 x 12.5 45

Hastings ID
15657 21
gasoline horizontal - tank cooled 8 3/4 x 15 64 1/2 x 3 1/2

Rollag MN
15671 magneto 8 or 10

horizontal - tank cooled 5 3/4 x 12.5 44 3/4 x 3

NC
15672 magneto 8 or 10
gasoline horizontal - tank cooled 6 x 10 44 3/4 x 3

Osakis MN
15684 Tin Fender 15
gas horizontal - tank cooled 5 3/4 x 12.5 54 1/2 x 3 1/2

MO
15689 Wico Mag 15 260
horizontal - tank cooled



Wellsville NY
15705 6

horizontal - tank cooled



Litchfield CO
15732 50 230 diesel horizontal - tank cooled
86 x 11

Pottstown PA
15737 50 230
horizontal - tank cooled
86 x 11

Lewisburg PA
15810 6 340 gasoline horizontal - tank cooled



Madison WI
15831 Div Superior tag 5 250
horizontal - tank cooled 4 3/4 x 10 39 1/2 x 2 1/4"

Naples FL
15869 tin fender, wico, I beam rod, Painted brewster Green 10
gas horizontal - tank cooled 5 3/4 x 10 45.5 x 2 1/4

Bradford PA
15952 tin fender full base 25 240
horizontal - tank cooled 9 x 18 64 1/2 x 3 1/2 Full Base
LI NY
15961 tin fender, Wico mag 15
gas horizontal - tank cooled 6 7/8 x 15 51 x 2.5

Hinsdale NY
Nameplate only no engine. 7629 Unknown 260 Unknown Parts Only - No Engine
Unknown N/A
Carmara Manitoba
Nameplate only. No engine 8112 5 340 Unknown Parts Only - No Engine
Unknown N/A

instruction manual only-no engine 8325 Unknown
Unknown Parts Only - No Engine
Unknown N/A
Starkville MS
H1011 1 cylinder vertical 75 285 diesel Superior Otto Diesel Holmesburg



Elkton MD
H1029 2 cylinder vertical 120 377 diesel Superior Otto Diesel Holmesburg



Cherryville PA
P22233

diesel Superior Otto Diesel Holmesburg

N/A

xxxxx s/n not readable 2

vertical



Newton NJ

This list is about 10 years old and is not current, Many of the engines are no longer at the locations listed. Some data is missing. Providing more information can help date engines and help owners in proper restoration. If you can provide updated information or measurements that were not included please contact me at otto@dol.net