RT 5112 Z

High-performance ride-on mower with wide cutting width | STIHL GB

The STIHL RT 5112 Z ride-on mower with a powerful 2-cylinder engine, large grass catcher box and wide (110 cm) cutting width, is perfectly designed for large lawns up to 8000m². Enjoy the sprung loaded seat which is adjustable to all heights and master the controls which are close at hand: the forward/reverse drive lever at the steering wheel, the central cutting height adjustment, the blade clutch and the lever for effortless emptying of the grass catcher box. The RT 5112 Z features a very powerful twin cylinder OHV engine for top level performance. In addition the single-pedal operation and direct steering provide a previously unattained level of comfort during driving, manoeuvring and mowing. The Grass Guide System on both sides of the mowing deck catches grass blades at the edge of the deck and guides them towards the cutting blades. The sychronised blade system provides a neat and clean cutting pattern and class leading grass collection. The RT 5112 Z comes with a 5 year extended warranty (subject to registration and annual servicing).

Versions Price
RT 5112 Z ride-on mower £4,499.00*
  • Technical data
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    Technical data Value
    Lawns m² up to 8,000
    Cutting width cm 110
    Cutting height mm 30-100
    Grass catcher box l 350
    Tank capacity l 9
    Engine type B&S 7,160 Series Intek OHV (2-cylinder)
    Displacement cm³ 656
    Nominal output 8.7 kW / 11.8 PS
    working speed rpm 2,700
    Machine Length cm 260
    Machine Width cm 117
    Machine Height cm 116
    Weight kg 246
    Guaranteed sound power level LWAd [dB(A)] dB(A) 100
    Sound pressure level dB(A) 86
    Uncertainty factor, sound pressure level KpA dB(A) 2
    Vibration value ahw m/s² 4.4
    Uncertainty factor K Wheel m/s² 2.2
    Vibration value ahw Seat m/s² 0.98
    Uncertainty factor K Seat m/s² 0.49

  • Features
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    Standard features

    • Turf tyres

      The large turf tyres of the STIHL ride-on mower help to protect the lawn. Thanks to their rounded tyre design, they reduce the formation of driving tracks.

    • Trailer hitch

      The integral trailer hitch enables easy mounting of attachments such as the convenient PICK UP 300 tilting trailer, which can also be used as a wheel barrow.

    • Central cutting height adjustment

      The lever to adjust the deck cutting height is located directly next to the driver's seat. It enables individual adjustment of the cutting height in up to eight steps.

    • Robust frame

      The robust frame construction gives the mower a high level of stability and driving comfort. The STIHL ride-on mowers compact design is great for using attachments such as the AGW 098 garden roller or PICK 300 tilting trailer.

    • Synchronous mowing deck

      The synchronous mowing deck provides consistent cutting quality and optimum grass flow through to the catcher box. This is made possible by the synchronised rotation of the blades, which are offset by 90°.

    • Spring-loaded and adjustable seat

      The most comfortable seat position can be set without the use of tools. This allows individual adjustment of the driver's seat to almost any body size.

    • Low step

      The low step on the STIHL ride-on mowers provides ample legroom and allows for comfortable access to the seat.

    • Catching management system

      The catching system guides the grass blades across the entire working width of the mowing deck. It helps to guide the grass towards the mowing blades for a more efficient cut.

    • Grass catcher box with bow handle

      The polymer grass catcher box can be emptied effortlessly from the driver’s seat simply using the curved shaped handle. The "dumper" design ensures optimum filling and residual-free emptying of the grass catcher box. Cleaning the catcher box is also easy.

    • Single pedal drive

      With the STIHL single pedal drive, the direction of travel can be conveniently switched between forward and reverse gear using a hand lever for quick manoeuvring. The pressure-sensitive pedal allows for precise control of the speed between top speed and standstill. The separate brake pedal ensures immediate stopping.

    • Electromagnetic blade clutch (EBC)

      The mowing deck can be easily engaged and disengaged by a switch situated on the control panel.

    Additional features

    • Mulching function

      With the mulch insert, the STIHL ride-on mowers can be converted into mulching mowers. The grass catcher box is simply removed and the mulch insert pushed into the grass catcher chute. This allows the grass to be shredded into fine particles inside the closed housing before they fall back into the turf, returning vital nutrients and moisture to the soil. Through this natural form of fertilising, there is no need to dispose of the grass.

  • Accessories
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    • AAH 300 covering hood

      The covering hood offers protection against dust and the weather and provides for optimum storage.

      Versions Price
      Covering hood - AAH 300 £112.00* Save and compare
      Save and compare
    • PICK UP 300 tilting trailer

      Tilting trailer for a wide range of transport tasks in the garden, it can also be used as a wheelbarrow. Capacity: 150 litres.

      Versions Price
      PICK UP 300 tilting trailer £245.00* Save and compare
      Save and compare
    • AGW 098 garden roller

      Garden roller, 98 cm wide, for all ride-on mower models.

      Versions Price
      AGW 098 garden roller £214.00* Save and compare
      Save and compare
    • ADF 500 deflector - For T5 and T6 series

      The ADF 500 deflector is easy to fit and replaces the grass catcher box when collection of the grass is not needed. The rear deflector allows the clippings to be evenly distributed on the lawn surface. For T5 and T6 ride-on mowers.

      Versions Price
      ADF 500 - Deflector £52.00* Save and compare
      Save and compare
    • ASP 125 snow clearing set

      The 125 cm wide snow plough enables useful operation of your ride-on mower in winter. Height and lateral adjustment of the plough can be conveniently performed from the seat. For the T4 series (excluding the RT 4082), T5 and T6.

      Versions Price
      ASP 125 snow clearing set £721.00* Save and compare
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    • ADL 012 diagnostic charger

      The diagnostic charger provides for optimised charging and reactivation of 12 V batteries.

      Versions Price
      Diagnostic charger - ADL 012 £52.00* Save and compare
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    • ASK 018 snow chains

      These snow chains provide for reliable propulsion on snow-covered surfaces; suitable for 18-inch tyres. For the RT 4097 S, RT 5097, RT 5097 C, RT 5097 Z and RT 5112 Z models.

      Versions Price
      ASK 018 Snow chains £76.86* Save and compare
      Save and compare
    • AMK 127 mulching kit

      This mulch insert is suitable for cutting widths of 110 cm and 125 cm and ensures that the clippings are shredded into fine particles before falling evenly back into the turf. This returns vital nutrients and moisture to the soil. The lawn quality is improved and disposal of the clippings is dispensed with.

      Versions Price
      AMK 127 mulching kit £65.00* Save and compare
      Save and compare
  • Documents
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    Owners manuals

* Manufacturer's recommended retail price updated as of February 2020. The manufacturer's recommended retail prices are subject to change without notice.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.