The John Deere 4105 left the factory with the 3TNV84. Where that engine is no longer available, the Yanmar 3TNV88 is the established replacement - same engine family, same mounting layout, a little more displacement. We stock it in mechanical injection and in electronic common rail, new surplus and rebuilt.
The John Deere 4105 is a compact utility tractor built for property maintenance, loader and light agricultural work, 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 3TNV84. Production years: 2010-2018. Rated output in this machine: approximately approx. 41 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 3TNV84.
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, 1.33