The 3TNE84 in your John Deere 870 is getting hard to source. The 3TNV88 replaces it - same block architecture, same 90 mm stroke, same mounting layout, 1.642 L instead of 1.496 L. We carry it new surplus and rebuilt, in mechanical and in common rail.
The John Deere 870 is a compact utility tractor from Deere's earlier compact line, powered by the Yanmar 84 mm-bore 3-cylinder.
ENGINE SPECIFICATION. Three cylinder, four cycle, liquid 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 3000 rpm at full speed, less in machines governed lower. Dry weight approximately 341 lb (154 kg). Rotation counterclockwise viewed from the flywheel end. Engine as fitted to this machine: Yanmar 3TNE84. Production years: 1990-1998. Rated output in this machine: approximately approx. 33 hp.
WHAT WE FIT TO YOUR MACHINE.
On a compact tractor the engine bolts to the transmission housing and drives the PTO. The bellhousing, flywheel, PTO drive, oil pan and front pulley all have to match your tractor - these are external components and they carry over from the engine you are removing.
WHY THE 3TNV88 REPLACES THE 3TNE84.
Yanmar's TNV three-cylinder engines are one family on one architecture - same 90 mm stroke, same block design, same mounting and accessory layout. Only the bore changes: 82 mm (3TNV82A, 1.331 L), 84 mm (3TNV84 and 3TNE84, 1.496 L) and 88 mm (3TNV88 and 3TNE88, 1.642 L). Because the