Mountfield 1643H-SD TWIN 108CM SIDE DISCHARGE LAWN TRACTOR

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
SKU	2T1220483/M22

Cutting system

Cutting method	Side discharge
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
Transmission method	Pedal-operated

Tools kit

Mulching kit	Optional
Battery charger	Optional
Trailer hitch kit	Optional

Overall dimensions

Pack weight	207.5 kg
Product length	1726 mm
Product width	1315 mm
Product height	1100 mm
Weight	159 kg

Power

Power source	Petrol
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

Equipment

Steering wheel	Mountfield ergonomic
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
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
Auxiliary user manual	Download
Additional sheet	Download
User manual	Download