Perkins 1106C-E66TAG3 Engine

Shared across brands: Caterpillar, FG Wilson, Perkins

How to read your Perkins engine serial & model number →

• The motor does not start up
  Cause: Start-up switch (I6) (where it is assembled) in incorrect position
  Fix: Check position
• High temperature
  Cause: Overload
  Fix: Check the load connected and diminish
• Absence of output voltage
  Cause: Voltage switch in position 0
  Fix: Check position
• The motor does not accelerate. Inconstant speed
  Cause: Air filter or fuel filter clogged
  Fix: Clean or replace
• Low oil pressure
  Cause: Oil level insufficient
  Fix: Reset level. Check for leaks
• White smoke
  Cause: Oil level too high
  Fix: Eliminate excess oil
• Too little power provided by motor
  Cause: Air filter clogged
  Fix: Clean or replace
• No-load voltage too low or too high
  Cause: Incorrect motor running speed
  Fix: Regulate speed to its nominal no-load value
• Corrected no-load voltage too low with load
  Cause: Incorrect motor running speed due to overload
  Fix: Check the load connected and diminish
• Black smoke
  Cause: Air filter clogged
  Fix: Clean or replace
• Unstable tension
  Cause: Contacts malfunctioning

Compiled from service & troubleshooting documentation across every generator set that uses the Perkins 1106C-E66TAG3.

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

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.