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You are here: Home Tech Articles & Tutorials Interior / Electrical Onan Power Generators
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Onan Power Generators



Source - 1969 Ford factory literature

From 1969-1972, Ford offered an underhood 2500-watt electrical generator mainly as an option on the Contractor's Special, though it could be special ordered on any F250-F350. Trucks would come with heavy-duty front springs and required a special inner fenderwell for mounting, and shared the truck's fuel supply.

These Onan generators are manufactured by Cummins, Inc. I'm attempting to track down some detailed information on them, but until then, these pictures will have to suffice.

"(The) Electric Power Pack, a unique underhood 2500-watt generator set, provides regular household power (110/120) right on your job for electrical tools and camping equipment. Unit is driven by it's own one-cylinder, electric starting, 5.5 hp air-cooled engine."
Source - 1971 Ford factory literature

This Onan generator was removed from a '70 F250 4WD
and sold on E-bay in Sept. 2004 for $473.

A forum user forwarded these shots of the special left-side inner fenderwell which is necessary for mounting the Onan generator. (Thanks Greg!)

C9TZ-16055-A   Left Fender Apron
1969-72 F100-350 w/Power Pack

A forum user provided these pictures of the underhood generator's special mounting bracket, as well as providing some schematics he created showing the bracket's dimensions.

This '70 F250 Sport Custom which appeared on E-bay a while back was equipped with an Onan generator.

Download the Onan generator parts manual (2.98MB)
NOTE: The password is "fordification".

Engine and generator assembly - aux. electric power
1969-1971 F100-F250, 1969-1972 F350

1024 x 1392, 87K

Power-Pak wiring diagram

If you have any additional information pertaining to the Onan
generator which could be added to this page, please e-mail me.


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