Zetor Z1517

The register lists here 6 versions with 70 to 107 kW rated output, consistently at 2,200 rpm, from identical four-cylinders with 105 mm bore and 120 mm stroke, corresponding to 4.2 litres of displacement on all six engines. All versions carry a waste-gate turbocharger and reach the Tier 4 (Final or Phase-in) emission stage; model years on all six run from 2017 as the production start to 2023 as the end year, and maximum torque falls between 420 and 609 Nm.

This four-cylinder range has driven Zetor's mid-size and larger tractor ranges over six model years; the uniform 4.2-litre displacement shows a narrow but consistently tuned power band for farm tractors.

As nonroad tractor engines, these units fall under the emission stages for mobile machinery rather than road rules; the tractor's standard power take-off shaft runs independently of travel speed, usually at 540 or 1,000 revolutions per minute, for which the engine holds a fixed governed speed during PTO work.

On a used purchase, operating hours and the service history of the injection count, the condition of the waste-gate turbocharger, the tightness of the charge-air hoses and cooler, and on the Tier 4 Final engines the function of the exhaust aftertreatment; spares run through the Zetor dealer network.