VIN Engine Letter

[international]

Sticky?

I indicates 6.9 liter IDI non-turbo.
M indicates 7.3 liter IDI non-turbo.
C indicates 7.3 liter IDI turbo. ('93 model year)
K indicates 7.3 liter IDI turbo. ('94 model year)
F indicates 7.3 liter DI turbo. (7.3 liter Power Stroke)