Mountfield 1643H-SD Twin is a dedicated side discharge tractor with a 108cm twin-bladed deck.
With extra power from the upgraded StigaST550 twin-cylinder engine makes even the toughest and largest areas a cinch to cut. It really is a lawn tractor perfect for all gardens up to 3-acres in size.
- Powered by STIGA with an ST 550 585cc Twin cylinder engine
- 108 cm cutting width
- Pedal operated hydrostatic transmission
- Seven Cutting height positions, 25 – 80 mm
- Blades engaged at the touch of a button
- Optional mulching plug and tow hitch available separately
Product details and specs
The 1643H-SD Twin is a fantastic side discharge lawn tractor. Powered by a formidable Stiga ST550 585cc twin cylinder engine that is powerful to cut through the toughest of lawns. With no bulky collection basket present, it is also highly manoeuvrable.
The 108cm twin bladed cutting deck makes light work of large areas and the hydrostatic transmission, akin to the automatic transmission in cars, is slick. There are seven cutting heights all selected using one lever and a simple flick of a switch engages the blades.
As a dedicated side-discharge machine this mower is excellent when grass growth is fast, however, you could choose to mulch the clippings using a mulching plug/plate (available as an optional extra) that is simple to fit. When mulching, the clippings are finely cut and blown back down onto the lawn to decompose and return valuable nutrients to the soil.
Cleaning after use couldn’t be easier just connect your hose to the deck nozzle, turn on the water and engage the blades and you will quickly have a clean deck and blades ready for next time.
With a wide range of towed accessories available, the Tow Hitch available as an optional extra makes the 1643H-SD extremely versatile in all seasons.
And of course, the 1643H-SD Twin comes with a reassuring five-year extended warranty. (T&Cs apply)
For advice on the ride-on best suited to your requirements please call our Technical Helpline on 01493 751659
Useful Information
This product is changing names for 2023 to Mountfield MTF 108H SD
Technical specs
General info
EAN/UPC | 8008984851887 |
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SKU | 2T1220483/M22 |
Cutting system
Cutting method | Side discharge |
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Minimum uncut radius | 65 cm |
Cutting width | 108 cm |
Reverse mowing | Yes |
Blade rotation | Untimed |
Cutting height adjustment | Manual with lever |
Cutting height positions | 7 positions |
Cutting height range | 25 – 80 mm |
Number of blades | 2 |
Blade type | Mulching |
Additional cutting method | Mulching |
Blade engagement type | Electric |
Transmission
Transmission type | Hydrostatic |
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Transmission method | Pedal-operated |
Tools kit
Mulching kit | Optional |
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Battery charger | Optional |
Trailer hitch kit | Optional |
Overall dimensions
Pack weight | 207.5 kg |
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Product length | 1726 mm |
Product width | 1315 mm |
Product height | 1100 mm |
Weight | 159 kg |
Power
Power source | Petrol |
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Battery capacity | 18 Ah |
Power | 10.8 kW |
Engine Brand | STIGA |
Engine model | ST 550 Twin Powered by STIGA |
Displacement | 586 cm³ |
Engine rotation speed | 2800 rpm |
Battery Voltage | 12 V |
Choke | Manual |
Engine cooling | Air |
Fuel tank capacity | 6 l |
Maximum working area | 3 |
Drive system
Traction | Rear-wheel drive |
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Equipment
Steering wheel | Mountfield ergonomic |
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Seat type | Mountfield classic |
Seat adjustment | Screws |
Front wheel size | 15×5.00-6 |
Rear wheel size | 18×8.50-8 |
Headlights | Conventional |
Bumper | Yes |
Washing link | Yes |
Storage compartment | Yes |
Cup holder | Yes |
Pivoting front axle | Yes |
Antiscalp wheels | 2 |
Safety system | Seat with Safety Contact Breaker |
Vibration and noise data
Measured sound pressure level at operator ear dB(A) | 87 |
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Measured sound power level dB(A) | 99 |
Guaranteed sound power level (LwA) – dB(A) | 100 |
Max vibration on steering wheels (m/s2) | 3 |
Max vibration on driver’s seat (m/s2) | 1.2 |
Engine manual | Download |
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Auxiliary user manual | Download |
Additional sheet | Download |
User manual | Download |