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Iveco/FPT 6.7L Engine

The Iveco/FPT 6.7L is a 6.7 L 6-cylinder turbocharged/aftercooled engine rated at 1800 rpm, producing up to 100 kW. It powers generator sets from Generac, including the SD100, SD130 and SD150. It holds 17 L (4.5 gal) of oil and 21.4 L (5.7 gal) of coolant.

Also known as: Iveco/FPT 6.7L

6.7 L
Displacement
6
Cylinders
1800 rpm
Rated speed
100 kW
Gross power
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Engine specifications

Oil capacity17.0 L
Coolant capacity21.4 L
Displacement6.7 L
Cylinders6
AspirationTurbocharged/Aftercooled
Rated speed1800 rpm
Gross power100 kW

Common problems

14
  • Unthreshed heads or pods – white caps in sample
    Fix: 1. Increase rotor speed 2. Close concave 3. Close Shoe Sieve 4. Add remaining fillers to first concave 5. Add filler to right of first concave
  • Small bits of cob in sample
    Fix: 1. Close chaffer sieve 2. Decrease rotor speed 3. Close shoe sieve 4. Increase air blast 5. Open concave
  • Shoe sieve overloading
    Fix: 1. Close chaffer sieve 2. Open shoe sieve 3. Increase air blast 4. Decrease rotor speed 5. Decrease forward travel speed
  • Loss of kernels out of rotor
    Fix: 1. Inspect concaves for plugging (unplug and set concave closer) 2. Decrease rotor speed 3. Position grate vanes to rear or slow position 4. Remove fillers from right of first concave (if installed) 5. Remove some wires from the concave 6. Move concave vanes to rear position
  • Kernels left of cob
    Fix: 1. Increase rotor speed 2. Close concave
  • Heavy stems in sample
    Fix: 1. Close shoe sieve 2. Close chaffer sieve 3. Increase air blast 4. Decrease rotor speed 5. Open concave
  • Grain loss over chaffer
    Fix: 1. Increase air blast 2. Open Chaffer sieve 3. Decrease rotor speed 4. Cover slots in rear portion of cage 5. Decrease forward travel speed
  • Grain blowing over chaffer
    Fix: 1. Reduce air blast 2. Open Chaffer sieve 3. Inspect concaves for plugging (unplug and set concave closer)
  • Fines in sample
    Fix: 1. Increase air blast 2. Close shoe sieve 3. Close chaffer sieve 4. Decrease rotor speed 5. Open concave
  • Excessive power consumption
    Fix: 1. Increase rotor speed 2. Open concave 3. Decrease forward travel speed 4. Remove channels from inside of rear grates
  • Excess cob breakage
    Fix: 1. Decrease rotor speed 2. Open concave 3. Remove channels from inside of rear grates
  • Distribution heavy on right side
    Fix: 1. Add filler to right of first concave 2. Add, remove or adjust auger bed paddle 3. Decrease rotor speed 4. Close concave 5. Decrease forward travel speed
  • Distribution heavy on left side
    Fix: 1. Remove fillers from right of first concave (if installed) 2. Open concave 3. Decrease rotor speed 4. Increase rotor speed 5. Add, remove or adjust auger bed paddle 6. Remove some wires from concaves 7. Decrease forward travel speed 8. Inspect concave for “zero” at 12th bar of the concave
  • Damaged grain or corn in sample
    Fix: 1. Decrease rotor speed 2. Open shoe sieve 3. Inspect concaves for plugging (unplug and set concave closer) 4. Open concave 5. Remove fillers from right of first concave (if installed) 6. Remove some wires from concaves

Compiled from service & troubleshooting documentation across every generator set that uses the Iveco/FPT 6.7L.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterCab recirculation air filter—50 hr
Fuel filterFuel prefilter/water separator—600 hr
Oil filterEngine oil filter—600 hr
Belt5—
CoolantEngine cooling system—4000 hr
Coolant filter5—
OilEngine oil - refer to manual for grade—600 hr
Spark plug5—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the oil capacity of the Iveco/FPT 6.7L?

The Iveco/FPT 6.7L engine has an oil capacity of 17.0 liters.

What is the displacement of the Iveco/FPT 6.7L?

The Iveco/FPT 6.7L has a displacement of 6.7 liters with 6 cylinders.

Which generators use the Iveco/FPT 6.7L engine?

The Iveco/FPT 6.7L powers 3 generator set(s), including Generac SD100, Generac SD130, Generac SD150.

How often should you change the oil in the Iveco/FPT 6.7L?

The Iveco/FPT 6.7L oil change interval is every 600 hours.

What is a common problem with the Iveco/FPT 6.7L engine?

A commonly reported issue on generators using the Iveco/FPT 6.7L is: Unthreshed heads or pods – white caps in sample. Fix: 1. Increase rotor speed 2. Close concave 3. Close Shoe Sieve 4. Add remaining fillers to first concave 5. Add filler to right of first concave.