AL4 51 SQ

A 51cm, Briggs & Stratton-powered petrol lawn mower with a self-propelled drive, a 163cc engine and four cutting-options.
  • check Collects clippings in a spacious 60-litre grassbox
  • check Powered by a top-quality Briggs & Stratton OHV engine
  • check Sizeable 51cm cut
  • check Self-propelled – cover slopes and rough ground with ease
  • check Strong and durable steel deck
If you’re looking for a powerful, simple to operate petrol lawn mower capable of covering a large area fast, the high-quality but affordable Alpina AL4 51 SQ ticks all the boxes!
Supplying the power is a high-capacity, high-output 163cc Briggs & Stratton four-stroke OHV engine with the famous US manufacturer’s ReadyStart® system that makes getting going quick and easy with no need for fuel priming.
The AL4 51 SQ is a versatile four-in-one machine – you can elect to either collect, mulch, rear-discharge or side-discharge clippings, depending on the conditions and your preferred finish.
It’s equipped with extra-large 280mm rear wheels that confer enhanced manoeuvrability; and it benefits from hassle-free single-point cutting-height adjustment through the six positions available.
Thanks to its substantial 51cm cutting-width and spacious 60-litre grassbox, the AL4 51 SQ offers excellent productivity and will enable you to get the job with few time-consuming emptying-stops.
A self-propelled transmission means slopes and rough grass can be covered with little effort expended; while a handy ‘box full’ indicator helps to avoid chute clogging by alerting you when the collector reaches capacity.
This robust, steel-decked machine features an ergonomically-shaped grip that works with a height-adjustable handlebar to ensure a high level of user comfort.
More Information
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Short DescriptionA 51cm, Briggs & Stratton-powered petrol lawn mower with a self-propelled drive, a 163cc engine and four cutting-options.
EAN/UPC8008984841413
Unique selling point 01Collects clippings in a spacious 60-litre grassbox
Unique selling point 02Powered by a top-quality Briggs & Stratton OHV engine
Unique selling point 03Sizeable 51cm cut
Unique selling point 04Self-propelled – cover slopes and rough ground with ease
Unique selling point 05Strong and durable steel deck
Key features 1 titlePower and ease of use
Key features 1 descriptionPowerful, reliable and easy-starting petrol engine
Key features 2 titlePerfect for large lawns
Key features 2 descriptionWith its 51cm cut and 60-litre collection capacity.
Key features 3 titleSmart-grip handle
Key features 3 descriptionFor hassle-free collector removal.
Award 3 logono_selection
Award 2 logono_selection
Award 1 logono_selection
Certification CE logono_selection
Certification EAC logono_selection
Power sourcePetrol
Power2.59 kW
Engine BrandBriggs & Stratton
Engine modelB&S 650 EXi series Ready Start
Displacement163 cm³
Engine rotation speed2800 rpm
RPM controlFixed rpm
StarterRecoil
Fuel tank capacity1 l
Engine Oil tank capacity0.47 l
Maximum working area1800 m²
4 in 1 cutting systemYes
Cutting methodCollecting, Mulching, Side discharge, Rear discharge
Mulching functionYes
Cutting width51 cm
Deck materialSteel
Cutting height adjustmentCentralized
Cutting height positions6 positions
Cutting height range22 - 80 mm
TractionRear-wheel drive
DrivingSelf-propelled
Speed forward3.7 Km/h
Collector capacity60 l
Handlebar typeErgonomic
Wheels200/280 grooved wheels on bushings
Front handleNo
Adjustable handlebarYes
Foldable handlebarYes
Collector typePlastic with warn
Guaranteed sound power level (LwA) - dB(A)98
Measured sound pressure level at operator ear dB(A)83
Vibration level hand (m/s2)5.9
Measured sound power level dB(A)98
Pack weight34.3 kg
Product length1595 mm
Product width565 mm
Product height1225 mm
Product weight30.000000
What's in the boxGrass bag<br />Mulching plug<br />Side deflector <br />Pin for rear discharge
SKU2L0536824/A21
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Key features

Product details and specs

If you’re looking for a powerful, simple to operate petrol lawn mower capable of covering a large area fast, the high-quality but affordable Alpina AL4 51 SQ ticks all the boxes!
Supplying the power is a high-capacity, high-output 163cc Briggs & Stratton four-stroke OHV engine with the famous US manufacturer’s ReadyStart® system that makes getting going quick and easy with no need for fuel priming.
The AL4 51 SQ is a versatile four-in-one machine – you can elect to either collect, mulch, rear-discharge or side-discharge clippings, depending on the conditions and your preferred finish.
It’s equipped with extra-large 280mm rear wheels that confer enhanced manoeuvrability; and it benefits from hassle-free single-point cutting-height adjustment through the six positions available.
Thanks to its substantial 51cm cutting-width and spacious 60-litre grassbox, the AL4 51 SQ offers excellent productivity and will enable you to get the job with few time-consuming emptying-stops.
A self-propelled transmission means slopes and rough grass can be covered with little effort expended; while a handy ‘box full’ indicator helps to avoid chute clogging by alerting you when the collector reaches capacity.
This robust, steel-decked machine features an ergonomically-shaped grip that works with a height-adjustable handlebar to ensure a high level of user comfort.

Technical specs

General info
EAN/UPC8008984841413
SKU2L0536824/A21
Cutting system
4 in 1 cutting systemYes
Cutting methodCollecting, Mulching, Side discharge, Rear discharge
Mulching functionYes
Cutting width51 cm
Deck materialSteel
Cutting height adjustmentCentralized
Cutting height positions6 positions
Cutting height range22 - 80 mm
Equipment
Collector capacity60 l
Handlebar typeErgonomic
Wheels200/280 grooved wheels on bushings
Adjustable handlebarYes
Foldable handlebarYes
Collector typePlastic with warn
Overall dimensions
Pack weight34.3 kg
Product length1595 mm
Product width565 mm
Product height1225 mm
Product weight30 kg
Power
Power sourcePetrol
Power2.59 kW
Engine BrandBriggs & Stratton
Engine modelB&S 650 EXi series Ready Start
Displacement163 cm³
Engine rotation speed2800 rpm
RPM controlFixed rpm
StarterRecoil
Fuel tank capacity1 l
Engine Oil tank capacity0.47 l
Maximum working area1800 m²
Drive system
TractionRear-wheel drive
DrivingSelf-propelled
Speed forward3.7 Km/h
Vibration and noise data
Guaranteed sound power level (LwA) - dB(A)98
Measured sound pressure level at operator ear dB(A)83
Vibration level hand (m/s2)5.9
Measured sound power level dB(A)98

What's in the box

What's in the box

  • Grass bag

  • Mulching plug

  • Side deflector

  • Pin for rear discharge

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