Need an engine for a Komatsu PC27R-8? The original 3D84E is an 84 mm three-cylinder, and the 88 mm 3D88 is the replacement core that goes in its place. We hold it new surplus and rebuilt, and we set it up to your mini excavator.
The Komatsu PC27R-8 is a 2.7-ton class mini excavator from Komatsu's R-8 series, sized for the tightest access work. Note that machines in this class span the 82 mm and 84 mm bores - confirm which from the data plate.
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 3D84E / 3D82AE. Production years: 1999-2005. Original rated output: approximately approx. 25-27 hp.
WHY THE 3D88 REPLACES THE 3D84E.
Komatsu's 3D-series three-cylinder diesels are one family on one architecture - the same 90 mm stroke, the same block design, the same mounting and accessory layout. Only the bore changes:
3D82AE - 82 mm bore, 1.331 L, around 29 hp (Yanmar 3TNV82A)
3D84 / 3D84E - 84 mm bore, 1.496 L, around 33 hp (Yanmar 3TNE84 / 3TNV84)
3D88 / 3D88E - 88 mm bore, 1.642 L, around 36 hp (Yanmar 3TNE88 / 3TNV88)
Because the 84 mm and 88 mm engines are built on the same core with the same mounting layout, the 3D88 is the established replacement where a 3D84E is no longer available -