Mountfield 1643H SD Twin Cylinder Lawn Tractor

£2,939.00 £2,689.00

The Mountfield 1643H SD Twin Cylinder Lawn Tractor has great features and quality with superb large area productivity and enhanced flexibility of use.

  • Powered by STIGA ST550 twin-cylinder engine for smooth-running and efficient operation
  • Generous working-width for fast cut over large areas
  • Side-discharge mode for tackling longer grass on informal areas
  • Mulching function for lawn areas requiring more frequent mowing
  • Smooth hydro-drive gives you car-like control of the tractor’s ground-speed
  • Substantial wheels for stability on slopes and rougher terrain
  • Electronic deck-engagement for ease of use
  • Tow-bar for a wide range of optional attachments such as trailers, rollers and aerators
  • Twin headlights for safety and better visibility
  • Comfortable high-back seat can be adjusted to suit the driver
  • Convenient deck-wash port
  • Protective front-bumper
  • Tight turning-circle and responsive steering makes it easy to work around obstacles
  • Low-effort spring-assisted height-of-cut control
  • Cup-holder ensures your drink is always to hand
  • Turf-saving anti-scalp deck-wheels

Mountfield 1643H SD Twin Cylinder Lawn Tractor

The Mountfield 1643H SD Twin Cylinder Lawn Tractor has great features, quality and flexibility.

The 1643H-SD Twin is a dedicated side discharge tractor with a 108cm twin-bladed deck.

With extra power from the upgraded Powered by STIGA ST550 twin-cylinder engine making 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.

It’s fitted with a robust bumper that protects the front end from impact damage.  It also boasts a deck mounted hosepipe fixture that makes the removal of clumped, corrosion causing clippings from around the blades and undercarriage quick and easy.

Thanks to its hydrostatic transmission, whereby the ground speed is controlled in infinite increments using a foot pedal, the Mountfield 1643H-SD is a pleasure to drive. It excels when it comes to obstacle negotiation and manoeuvrability.

There is a cup holder so that you can keep your favourite drink to hand while you mow effortlessly around your property. This model has anti scalp gauge wheels. These look after the ground surface by preventing the corners of the deck digging in and gouging when you are working on rolling terrain.  This machine also has large diameter drive tyres also help to prevent turf damage.

Mountfield have a equipped this model with a tow bar to enable you to maximize the potential of your mower and turn it into a year round workmate.

Further attributes included a super-tight 130cm turning radius for straightforward end of pass realignment; and an adjustable seat for a comfortable drive, whatever your height.

A 108cm cut makes the 1643H-SD ideal for lawns and rough-grass areas up to 10,000 m2


The Mountfield 1643H SD Twin Cylinder Lawn Tractor offers both mulching  and side discharge functions as standard. It’s just as at home on a fine, formal lawn as it is on overgrown outlying areas. When conditions are suitable you can eliminate grass collection and recycle the clippings. This will save you time and also return valuable nutrients to the soil.

If you choose to mulch the grass, then the grass clippings from the mowed grass are cut into fine pieces that fall easily to the soil surface. There, they can be rapidly broken down by soil microorganisms. These release nutrients from the mulched plant material back into the soil.

Recycling grass clippings back into the lawn can account for up to one pound of a lawn’s annual nitrogen requirements. A typical lawn needs up to four pounds of nitrogen annually for healthy growth. Returning the clippings to the lawn can effectively cut out one full fertilizer application saving time, money, and labour. Clippings are also rapidly devoured by worms, beneficial bacteria, and fungus. Which increases the diversity and activity of the intricate food web.

Technical Specifications



Engine Make                                               Stiga

Engine Model                                               ST 550 585CC TWIN CYLINDER ENGINE

Engine Type                                                 Petrol 4-stroke

Engine Capacity                                           585cc

Engine Cylinders                                          Twin

Engine Starting System                               Electric Key Start

Engine Fuel Tank Capacity                         6 Litres

Transmission                                               Hydrostatic – Foot-Pedal Operated

Drive                                                            Rear Wheel

Speed                                                           0-8.8km/h

Cutting Width                                               108cm

Cutting Heights                                            25-80mm (7 Positions)

Height Adjustment                                       Single Lever – Spring Assisted

Blade Engagement (PTO)                             Electronic

Turning Circle                                              130cm

Blades                                                          Twin

Grass Collector                                            N/A

Mulching                                                      Yes

Side-Discharge                                            Yes

Headlights                                                   Yes

Cup Holder                                                   Yes

Seat                                                             High Back / Adjustable

Deck Washout Port                                       Yes

Anti-Scalp Deck Wheels                               Yes – 2

Tow Bar                                                        Included

Front Bumper                                               Yes

Wheels – Front                                             381mm

Wheels – Rear                                              457mm

Dimensions (HxWxL)                                TBC x 131cm x 165cm

Lawn Size                                                     Up to 10,000m2

Warranty                                                      5 Years