AS 940 Sherpa 4WD XL B&S

High-grass, ride-on mower with permanent all-wheel drive and more ground clearance

The AS 940 Sherpa 4WD XL enables comfortable and safe mowing on slopes thanks to its Briggs & Stratton 2-cylinder engine with 724 ccm, 27 hp, and oil and fuel pump. Its permanent all-wheel drive, XL tyres with field stud tread, low centre of gravity and low total weight of only 298 kg provide stability on slopes. Hydrostatic transmission allows the precise adaptation of speed to match the terrain, reaching 6.7 km/h and 6.5 km/h in reverse. Just one lever controls the drive, brake and parking functions for easy operation, while limited slip differential can be activated for excellent propulsion and traction in extreme situations. A brake pedal returns the drive lever to neutral and automatically engages the parking brake.

The AS 940 Sherpa 4WD XL’s surfing mower deck is equipped with AS cross-blade technology in which bearing-supported blades cut the grass, while a mulching blade positioned above them shreds the cuttings. The mulched grass is then deposited between the wheels for added safety on slopes and wet grass, while the mower deck’s surfing suspension yields upwards to obstacles, protecting the blades and turf from damage. With a 90 cm cutting width, the AS Sherpa 940 4WD XL achieves work rates reaching 5,500 m² per hour. Cutting heights can be adjusted to 5 levels from 80–135 cm and an optional mulch kit is available for even finer mulching results.

Maximum comfort for long work days

The AS 940 Sherpa 4WD XL performs even under harsh conditions thanks to its highly stable tubular frame. A length-adjustable seat and seat spring package mean operators up to 2 meters tall can operate the machine comfortably while a low centre of gravity, folding bar and branch deflectors are added safety features. Integrated lashing points enable secure transport.

Designed for continuous operation

Two separate ventilation circuits for the engine and hydrostatic transmission prevent overheating: the engine takes in air from above and discharges it to the side, while the hydrostatic transmission takes air from the rear and discharges it downward. This system ensures a long service life.

The all-wheel drive ride-on mowers from AS Motor in a new design

The 2023 all-wheel drive models of the AS Motor 940 Sherpa family will appear in new splendour in the future. With new paintwork, an additional front panel and the newly designed decals, the Sherpa’s are even more attractive. But the 2023 model year of the AS 4WD Sherpa family also offers some technical innovations.

The new ATV tyres on the AS 940 Sherpa XL and the remote-controlled ride-on mower AS 940 Sherpa RC feature even better performance when driving across slopes and better climbing ability. In future, all AS Motor 4WD Sherpa models will be equipped with the AS tyre sealant Plattfuss-Stop as standard – downtimes due to flat tyres will be a thing of the past. The new fuel tank of the Sherpas offers more volume (17 litres), a larger tank opening, a fuel level indicator and a closed circuit with less fuel evaporation. The new locking mechanism of the foldable bar ensures easier handling and improved freedom of movement when operating the driving lever. In future, the protective cloth between the engine and the seat will no longer be elaborately riveted, but locked in place by robust magnets. Accessibility to the engine, for example when adjusting the valves or changing the oil, is significantly improved. This was an idea from AS-Motor users and dealers. Many thanks for this practical improvement idea.

Product advantages

All-wheel drive (AS 940)

Permanent all-wheel drive ensures better traction uphill and stronger, safer braking downhill.

Surfing mulch-mower deck

Closed mower deck with AS cross-blade system. The main blade cuts, the cross-blade chops the cuttings. The surfing mower deck gives way upward on uneven terrain to protect against damage.

Ergonomic sitting position provides excellent driving comfort

Length-adjustable driver seat, innovative seat suspension and ergonomic sitting position provide comfort for tall operators during long work periods.

Stable tube frame

High stability and torsional rigidity with heavy load.

Optimal all-terrain mobility

Field stud tyres, switchable limited slip differential and an engine suitable for slopes ensure powerful traction on difficult terrain.

Variable hydrostatic transmission (ride-on mower)

Easy adaptation of the speed to every terrain with integrated, mechanical parking brake in the drive lever.

Stable, folding bar

Greater operator safety in the machine's limit area.

Excellent – German Design Award Winner 2023

The consistently sustainable product design of the powerful high grass mowers convinced the top-class jury of the German Design Award. In the citation it says: „The AS Sherpa 4WD XL was developed specifically for mowing tall grass meadows, which its striking functional design expresses perfectly. A compact ride-on mower reduced to the essentials for sustainable and ecologically oriented green maintenance.“

Product details

AS mulching mower deck

Closed, surfing mower deck with cross-blade system and bearing-supported blades that yield to obstacles.

Separate air cooling supply

Separate engine air cooling and hydrostatic transmission optimize performance.

Switchable limited slip differential

Comfortable activation of the limited slip differential via foot pedal for excellent propulsion and traction.

XL tyres

XL tyres for 30 mm additional ground clearance.

Technical Data

cutting width 90 cm
engine manufacturer B&S
engine designation Professional Series 8
4-stroke engine, 1-cyl. / 2-cyl. /
displacement 724 cm³
maximum power 20,1/27,0 kW (hp)
rated power 16,5/22,4 kW (hp)
rated speed 3300 rpm
drive, 2WD rear / 4WD permanent /
drive, variable hydrostatic transmission
max. speed 6,7 km/h
limited-slip differential
automatic parking brake
mono-blade / cross-blade / Y-flails / /
side discharge / rear discharge /
closed mower deck
surfing mower deck
cutting height 80 - 135 mm
tank capacity 17 l
seat spring package, standard / optional /
dimension L/W/H 191x106x156 cm
weight 298 kg
Changes in technology, equipment and price are reserved. Of information or illustrations no claims can be derived.


Insect scare device

Scares insects and small animals away from the mower. Three times more insects can flee in time. With respective adapters suitable for AS 62/63, AS 701/901, AS Sherpa and AS YAK.

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Cargo area: L = 1071 mm, W = 607 mm, panel height: 274 mm. Permissible total weight: 100 kg. Rear panel can be removed.

Trailer hitch (Sherpa)

For connecting the AS trailer.

Snow blade

Width: 1107 mm, height: 348 mm. Adjustable on both sides.

Mulch kit (Sherpa)

For even finer mulching and more uniform cutting results on lawns with grass up to 40 cm high.

Tilt meter

Convenient display of slope incline.

Steering knob

Facilitates one-handed steering and maoeuvring on level terrain.

Liquide tyre sealant “Plattfuss-Stop”

Reduces the failure times due to flat tyres (950ml)

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Liquide tyre sealant “Plattfuss-Stop”

Reduces the failure times due to flat tyres (20 litres); can only be used in conjunction with the pump

More information »

Pump for tyre sealant

For filling the tyre sealant "Plattfuss-Stop"; only necessary in conjunction with 20 l container

Standard wheel kit

Tubeless ATV wheel kit as standard equipment. Low pressure.

Tubeless wheel

For high puncture safety in additional use of tyre sealant "Flat-Stop".

Spacer Sherpa

Spacer for replacing the upper mulching blade. Advantageous in fibrous vegetation or for higher mowing speed in dense vegetation.

LED headlights

Two high power 18W LED headlights, with mount, switch and cable.

Customer reviews

Mow stresssless with AS!
– Mario Balduzzi (Horticulturalists and landscape designer from Weil am Rhein, Germany)
Time is a precious commodity which is why I'm the proud owner of an AS 940 XL.
– Udo Köhler (FMC Building Contractors, Frankfurt am Main, Germany)
For our AS 940 Sherpa 4WD XL, narrow, steep and difficult to navigate areas with high grass, shrubs, bushes and wild growth are no problem. We mow with our Sherpa, where you can hardly walk. Not much remains from the 1.5 m high and up to 3 cm thick growth! Our customers rely on us for quality and reliability and we can rely on our AS Profi mower!
– Lukas Schwab (Contractor Schwab Land and Technik GbR, Germany)
We have been working with AS machines for over 25 years. Most recently, the AS 940 Sherpa convinced us so much that we had already ordered the second machine. We also use the Sherpa for winter maintenance or as a 'small' tractor in places where our other machines cannot reach. Furthermore, the size of the machine is optimal so it can be transported without any problems - even in a van. At a landfill site, we used the AS 940 to transport plants because Sherpa was the only machine the client had no conserns about its weight.
– Robert Kühn (Managing Director of Kühn Garten-, Landschafts- und Sportplatzbau GmbH in Jessen, Germany)
The AS 940 Sherpa 4WD XL replaces a lot of manpower with brush cutters. It mows flawlessly where all other mowers we used would stop: On all extreme tall grass areas and steep slopes that used to be maintained with manpower and brush cutters, which took a lot of time. It has proven to be a very reliable, easy-to-use machine that always delivers excellent results.
– Šemso Kurtović (Lokom d.o.o. - Public Administration of the City of Sarajevo, Bosnia and Herzegovina)
The AS 940 Sherpa 4WD XL is an easy-to-use machine. In our company we have replaced several other machines that could not maintain tough terrain. This machine has reduced the mowing time. We couldn't manage to clean the terrain with tractors, we did it with brushcutters. Then the Sherpa came and gave us great results, and we are very happy with the performance we are achieving.
– Iva Mladenović (Sport Center Pirot, Serbia)

Peter Martini (owner Martini Landschaftsbau und Pflege from Kehrig, Germany)

We use two AS 940 Sherpa for the green space maintenance of the open-air photovoltaic systems. Twice a year, we currently mulch around 200 hectares in this business area. The primary goal is to keep the solar modules free of shade. We mow under the solar tables, which means there is only about 90 centimetres of space between the turf and the tables in some places. Of course, the compact design and the low centre of gravity are very beneficial. In addition, the Sherpas with their all-wheel drive are very suitable for off-road use. Even if there is brushwood or high grass to be mulched, that is no problem, the Sherpas will stop nothing. With the AS mowers, we can get through anywhere.
We have been waiting for a machine like this for a long time. Safety is now being increased when mowing large slopes, which is a frequent request from the company's management. We really like Sherpa!
– Boban Stanisavljević (machine operator, JKP "Ravno 2014" Ćuprija, Serbia)

Dr. Michael Köbler (Geschäftsführer, Hofgut Serrig, Nähe Trier)

Since the farm is entirely self-supporting, the economic efficiency and thus the maintenance costs and the useful life of a new acquisition are also decisive. "I was very pleasantly surprised by the consumption in particular," says Dr Köbler and adds with a smile: "With the previous model, you had the feeling that you had to drive right behind with the tanker. I couldn't imagine that the mower from AS-Motor would be so economical." In fact, AS-Motor's Sherpa stands out for its low consumption of a maximum of 4.7 litres per hour in extremely tall grass.


Gardening and landscaping

AS-Motor’s professional technology offers solutions for the diverse tasks of gardening and landscaping, from outdoor facilities to private gardens, public parks and residential lawns.

Commercial landscaping

Performance on rough terrain, perfect cutting results and high efficiency are advantages AS-Motor machines provide to professional service providers.

Meadow orchards

Meadow orchards characterize the landscape of diverse regions and provide valuable ecosystems for insect and bird life. Maintaining these areas often involves mowing around trees, on slopes and in rough terrain.

Municipal maintenance

Caring for green areas in the civic environment involves a variety of tasks. From parks to roadside management, AS-Motor provides the correct tools to ensure both professional results and operator safety.


AS-Motor offers professional technology for the maintenance of green spaces in and around public utility facilities.


Viticulture, or wine-growing, is one of civilization's oldest forms of agriculture. AS-Motor was founded 60 years ago with the objective of tackling the slopes and thick growth of vineyards.

Leisure facilities

Leisure facilities must be visually appealing and expertly maintained. Whether parks or campsites, these areas are frequently used and thus require careful maintenance.

Hunting and forestry

In forests and on hunting grounds, mowing can take place as infrequently as once per year or even at intervals of several years. AS-Motor machines are engineered to tackle the thick growth native to these areas as well as Christmas tree plantations.

Equestrian businesses

Equestrian areas require various forms of green care. Whether maintaining paddocks or lawns, AS-Motor offers tools to create the ideal equestrian environment.

Solar parks

Efficiency is crucial to maintaining a profitable solar park. AS-Motor offers the ideal tools to properly maintain the green areas around and under solar panels.

Road maintenance

Maintaining roadways often involves mowing high grass and slopes, two specialties of AS-Motor’s professional technology.