F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
Alternator: Description and Operation
Charging System - General Information
GENERATOR
The single generator system consists of the generator mounted on the bottom right of the engine (diesel) or top center of the engine (gas). The gas
engines use a 3G 115-amp generator with a 2.71:1 pulley ratio. The 6.4L diesel engine uses a SC1 135-amp generator with a 2.79:1 pulley ratio.
The dual generator package consists of an upper/lower dual generator system. The 6.4L upper generator is a 4G 120-amp generator with a 3.00:1 pulley
ratio. The 6.4L lower generator is a SC5 200-amp generator with a 2.79:1 pulley ratio. The upper and lower generators are not interchangeable.
A option is available (6.4L diesel only) that includes a SC5 200-amp generator with a 2.79:1 pulley ratio. The SC1 and the SC5 are similar in
appearance and use the same connectors, making them interchangeable. Identification between the different generators can be carried out by referring to
the generator engineering number, 2 letter code on the label and the parts catalog.
