The engine in the Cat C9 REH Prefix
The Cat C9 fitted to the Cat C9 REH Prefix is a 8.8L / 537 cu in 6-cyl inline diesel, 112 x 149 mm bore and stroke, rated at 248-340 HP @ 1800-2200 rpm, built to Tier 3/4 emissions. If you are replacing the engine in a Cat C9 REH Prefix, this is what you need. Call us with your engine serial number and we will confirm the exact fit before you buy.