2025 John Deere Z955R EFI ZTrak™ 60-in. 7Iron™ PRO side

2025 John Deere Z955R EFI ZTrak™ 60-in. 7Iron™ PRO side

• 30.5-hp (22.7 kW) EFI gasoline engine

• 60-in. 7-Iron™ PRO Side-Discharge Deck, 60-in. 7-Iron™ PRO Mulch On Demand™ Deck, 72-in. FastBack™ PRO Rear-Discharge Deck

• Brake-N-Go starting

• Cross-porting hydraulic transmission

Features may include:

A commercial-quality, 30.5 hp (22.7 kW) gross at 3600 rpm, air-cooled engine with EFI powers the Z955M and Z955R ZTrak™ Mowers.

Engine features include:

• Electronically adjusts the supply of both fuel and air, responding instantaneously when the mower transitions from light to heavy mowing.

• Unlike mechanical governors that droop under load, torque rises while maintaining constant full-throttle engine speed.
  • Productivity and cut quality are improved because the mower blades keep turning at full speed, delivering optimal cut quality and dispersion of clippings.
    • Immediate starting in hot or cold ambient temperatures or after long periods of seasonal storage
    • No choke linkage for the user to operate
    • Higher reliability with the elimination of vapor locking, misfiring, run-on, and after-bang
    • Automatic altitude compensation
    • Delivers fuel precisely for added efficiency
    • Reduces the potential for plug fouling
    V-twin design
    • Fast starts
    • Smooth operation
    Overhead valves
    • More horsepower and torque per cubic inch of displacement
    • Better fuel efficiency

    Air-cooled for minimum maintenance and maximum reliability

    Aluminum cylinder block
    • Effectively dissipates heat to extend engine life
    • Lightweight and strong construction
    Full-pressure lubrication with full-flow filter
    • Reduces engine wear by ensuring proper lubrication, even when operating on hillsides or uneven terrain
    • Filtered oil reduces risk of contamination for increased engine life for increased engine life
    • Oil cooler helps keep engine at optimum temperature

    Standard cleanout ports for easy access to remove debris collecting in cooling fins

    30-amp alternator

    Complies with strict Environmental Protection Agency (EPA) and California Air Resources Board (CARB) emission standards without loss of horsepower or torque.

    Engine service

    The engine is easy to service, including changing the oil:

    • The engine oil check and fill tube is located at the top of the engine and easy to see and reach.