The Ferris IS4500Z runs the 88 mm Yanmar three-cylinder, and we stock it in both fuel systems - mechanical injection and electronic common rail, 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 Ferris IS4500Z is a commercial diesel zero-turn mower used by landscaping contractors and grounds crews across the United States. It is powered by the Yanmar 88 mm-bore 3-cylinder direct-injection diesel. Commercial mowers run at sustained full working rpm for long hours, so a correctly governed variable-speed mobile engine is essential.
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: 3TNV88. Production years: 2005-2018. Rated output in this machine: approximately approx. 36 hp.
WHAT WE FIT TO YOUR MACHINE.
On a commercial mower the engine runs at full governed rpm for long hours driving the deck and hydrostatic drive. Pulleys, brackets, oil pan and cooling package are external and carry over from your old engine.
MECHANICAL OR COMMON RAIL - THIS IS THE ONE THING YOU MUST MATCH.
The Yanmar 3TNV88 comes in two fuel systems and they are not interchangeable. MECHAN