The engine in the Cat 303.5CR 303C
On the Cat 303.5CR 303C, the Mitsubishi S3L2 is a 0.8L / 47 cu in 3-cyl inline diesel with a 72 x 67.5 mm bore and stroke, rated around @ 3600 rpm, built to Tier 4 emissions. If you are replacing the engine in a Cat 303.5CR 303C, this is the unit to match. Call with your engine serial number and we will confirm the exact fit before you buy.