The 3TNV84 in your Case CX47 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 Case CX47 is a 4.7-ton class mini excavator sold through the Case CE dealer network in the United States, powered by the Yanmar 84 mm-bore 3-cylinder. Verify cylinder count on the data plate, as some machines in this class use 4-cylinder Yanmar engines.
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: 2003-2011. Rated output in this machine: approximately approx. 33-40 hp.
WHAT WE FIT TO YOUR MACHINE.
On a mini excavator the core engine is only half the job. The bellhousing and flywheel have to mate to your hydraulic pump drive, the oil pan has to clear the undercarriage, and the throttle has to answer to the machine's engine control. Those are all external parts and they carry across from the engine you are pulling out - we build the core to suit.
WHY THE 3TNV88 REPLACES THE 3TNV84.
Yanmar's TNV three-cylinder engines are one family on one architec