Splitdorf Generator Applications
This chart is based on original literature, period photographs
and examining original, unrestored motorcycles. It is by no means foolproof.
Most of the original motorcycle manuals and advertising only refer to a
Splitdorf
generator with no reference to a specific model or rotation.
ACE
1920-1921
DU-1
1921- up
Probably DU-5 (all CW)
CLEVELAND
SINGLE 1922
DU-3 (CW)
SINGLE 1923-1925
DU-3 or DU-5C ? (CW)
FOUR CYLINDER 1925 - 1928
DU-5C (CW)
1928 - 1929
DU-7 (CW) may be marked “DU-7Câ€
EXCELSIOR
1920? 1921
DU-1 (CCW)
1921 - 1928 or ˜29
DU-5E (CCW)
1929 - 1930 or ˜31
DU-7 (CCW)
1931
Auto-lite ?
HENDERSON
1920 – 1921
DU-1 (CW)
1921 - 1929 (end of Deluxe production)
DU-5 (CW)
1929 - 1930 (KL, KJ)
DU-7 (CCW)
1931
Auto-lite
INDIAN
Powerplus 1918 - 1921
DU-1 (CCW)
Prince 1925 - 4 March, 1928
DU-5 (CCW)
5 march 1928 - end of 1928 production
DU-7 (CCW)
(The Prince and Scout generator has a boss on the drive head,
tapped 1/4-24 for mounting the belt guard on the Prince. The Scout
uses the same generator, but the boss is not used.)
Scout 1920 “ 1921
DU-1 (CCW)
1921 - March 4, 1928
DU-5 (CCW)
March 5, 1928 - 26 Jan. 1931
DU-7 (CCW)
Chief 1922 - 4 March 1928
DU-5H (CW)
5 March 1928 - end of 1931 production
DU-7H (CW)
Four Cylinder
1927 - 4 March, 1928
DU-5 (CW)
5 March, 1928 - early 1930 production
DU-7 (CW)
Early 1930 production - 26 Jan. 1931
DU-7 (CW) Special with belt guard mounting block
26 Jan. 1931 (late 1930 production and 1931)
Auto-lite
MILITOR
1920? - 1922
DU-1 (rotation?)
READING - STANDARD
1918 - 1921??
DU-1 (CCW)
1921 - 1924
DU-5 (CCW)
CW = Clockwise rotation
CCW = Counter-clockwise rotation