Hercules Engine News

Including Economy, Arco, Jaeger & Thermoil

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This photo was recently found in a family album by Paul Gregson, 2312 Lakemore Drive, Olympia, Washington 98512.

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20601 Old State Road, Haubstadt, Indiana 47639

Have you ever wondered just how many Hercules and related engines are still around? Some 400,000 were manufactured over a 20-plus year period. It is likely that we'll never know how many are still around; however, quite a number are known. There surely must be several thousand more out there that yours truly hasn't seen or heard about. For the past ten or twelve years I have been gathering information on the Hercules and related engines. Following is a somewhat haphazard breakdown of those known at this time.

Model D (all brands)
1? HP13

2? HP

7

4 HP

8

6 HP

5

Models E through S (all brands)

1?, 1?, 2HP(3? x 5)

821

2, 2?, 2? HP(3 5/8 x 5)

98

2? to 3? HP (4 or 4? x 6)

261

5 and 6 HP (5 x 7?)

179

7 and 8 HP (5? x 9)

100

9 and 10 HP(6? x 11)

38

12 and 14 HP(7? x 12)

35

Model N

1? HP(3? x 4)

37

All X Models

104

All J Models

77

Model T Thermoils

1? HP

One reported but not verified

2? HP

9

5 HP

7

7 HP

6

9 HP

One reported but not verified

Model U Thermoils

1? HP mfd. by Cummins

11

3 HP mfd. by Cummins

11

6 HP mfd. by Hercules

18

8 HP mfd. by Hercules

16

Model UA Thermoils

7 HP

8

9 HP

17

Sparta Economy (Models A, B, C, CA and CX)

1 and 1? HP

51

2 HP

116

4 HP

49

6 HP

51

8 HP

11

10 HP

3

Again, it should be pointed out that these are the ones that your author has learned about over the past ten or so years. There are many more out there. If you have engines that you wish to add to the list, you may send the HP, model (letters after HP) and the serial number to the address above.