Vehicles

8 Cat C7 Engine Problems, Oil Capacity, Specs

The Caterpillar C7 diesel engine was used in buses, trucks, and RVs in 2003 – 2009.

Problems reported by owners:

  • Low power
  • Poor fuel economy
  • Overheating under load
  • Clogged filters
  • High oil consumption
  • Valve failure
  • Cracked heads
  • Crankshaft failing

 

Oil Capacity is 19 qts of 15 W 40 or 10 W30.

Video:

 

Cat C7 Engine Specs:

  • 300 hp @ 2200 RPM
  • 925 lb-ft @ 2200 RPM
  • tow capacity 9k lbs
  • Inline 6, 4-Stroke-Cycle Diesel
  • 7.2L displacement
  • 16.2:1 compression
  • 1296 lbs. dry weight

It looks like this: