The Komatsu PC45MR-3 runs the 88 mm three-cylinder, and we stock it in both fuel systems - mechanical and electronic, new surplus and rebuilt. Which one you need comes down to what is on your data plate, not what is on the machine badge.
The Komatsu PC45MR-3 is a 4.5-ton class short tail-swing mini excavator used for utility, site prep and general construction work in the United States. CYLINDER COUNT WARNING: machines in this size class were built with both three-cylinder and four-cylinder Yanmar-based Komatsu engines. Confirm the cylinder count on the data plate before ordering - the 3D88E (three-cylinder, 1.642 L) and the 4D88E (four-cylinder, 2.190 L) are different engines.
ENGINE SPECIFICATION. Three cylinder, four cycle, water cooled, vertical in-line. Direct injection, naturally aspirated. Bore and stroke 88 x 90 mm. Displacement 1.642 L (100.2 cu in). Around 36 hp at full rated speed, less in machines governed lower. Dry weight approximately 341 lb (154 kg). Engine as fitted to this machine: Komatsu 3D88E. Production years: 2008-2016. Rated output in this machine: approximately approx. 36 hp.
KOMATSU 3D88 AND YANMAR 3TNV88 ARE THE SAME ENGINE.
Komatsu's small D-series diesels are Yanmar TNV engines built under the long-standing Komatsu-Yanmar relationship and badged as Komatsu. The Komatsu 3D88 / 3D88E is the Yanmar 3TNV88: same block, same crankshaft, same 88 x 90 mm bore and stroke, same 1.642 L displacement, same architecture. If your data plate reads 3D8