- Single Speed Wheel Drive
- Large cutting width for efficient working
- Ergonomically shaped handle bar
- XXL wheels for easy pushing
- Comfortable and simple cutting height adjustment
High degree of innovation and a modern design. These are key features of our "Highline" petrol lawnmowers, making us the ideal partner for your lawn care.
The Highline 51.8 SP-A Petrol Lawn Mower
Chic and comfortable, this is how the Highline 51.8 SP-A from AL-KO presents itself. Developed in Germany and manufactured in Austria, this lawn mower offers the highest quality. The modern design makes it an eye-catcher in every garden. Quality components and materials increase the longevity of the petrol lawnmower. Mowing the lawn is a pleasure with the "Highline" lawnmowers.
Technical Details of the Highline 51.8 SP-A Petrol Lawn Mower
With a cutting width of 51 cm, the Highline 51.8 SP-A petrol lawn mower ensures quick progress even in large gardens (up to 1800 m²). The cutting height adjustment is carried out centrally in 7 stages from 30 mm to 80 mm. The 2.1 kW AL-KO Pro engine with overhead valves offers excellent efficiency, resulting in more power and less fuel consumption. Thanks to the wheel drive and the XXL lightweight wheels, it's easy to move the mower around the garden. The 4INONEfunction offers mowing, collecting, mulching and side discharge of the grass. The ergonomically shaped handlebar increases comfort while working. The grass clippings pass through the extra-high steel sheet mowing deck with MaxAirflow technology to the rear of the 70-litre collector with level indicator, filling it up to the top meaning the grass box needs emptying less frequently.
Buy the Highline 51.8 SP-A Petrol Lawn Mower and Alternatives
Buy the Highline 51.8 SP-A petrol lawn mower easily in our online store or find a dealer in your area. The Highline 51.8 SP-A petrol mower provides efficient support for maintaining your lawn. If you want a petrol lawnmower with variable speed wheel drive, we recommend the Highline 527 VS petrol lawn mower.
|Box Volume in Litres||70|
|Function||Catching, Mowing, Mulchmowing, Side discharge|
|Warranty||5 Year Domestic*|
|Displacement in cc||139|
|Cutter Deck||Steel Plate|
|Motor||AL-KO Pro 145 QSS|
|Wheel Drive Type||1 gear|
|Ø Wheels, Front / Rear||200 / 280 mm|
|Wheels With Ball Bearings||yes|
|For Lawns (in m²)||1,800|
|Cutting Width in cm||51|
|Cutting Height||30-80 mm|
|Cutting Height Adjustment||Central, 7-stage|
|Weight in kg approx||35|
All Highline lawnmowers are delivered almost pre-assembled. The final assembly is possible in a few minutes, the enclosed operating and assembly instructions guide you step by step to the destination. Do you prefer a video tutorial? Then take a look at our montage video:
Why does the engine of the mower smoke white after starting?
The unit was tilted wrongly, oil is in the muffler and / or air filter. The air filter must be dismantled and cleaned. Then check and adjust the oil level in the engine. Then let the engine run, after a few minutes, the smoke should decrease. Warning: unburned engine oil drips out of the silencer so be aware of environmental pollution! For cleaning, only tilt the appliance according to the instructions.
Why does the engine of the mower smoke black after starting?
The air filter may be dirty and need to be replaced. The oil level in the engine must be checked and adjusted. Then let the engine run. If the smoke does not stop, the device should be checked by an AL-KO service partner
The lawn mower is hard to start. Can I use start pilot or similar?
We strongly advise against the use of take-off pilot or similar. Chemicals can in the worst case lead to engine damage. We recommend a review and possibly carburettor cleaning by an AL-KO service partner
Why does the lawnmower run rough and / or cut out again immediately after starting?
Check fuel tank contents, top up with petrol if necessary. Some suction carburetors always leave a residue of one to two cm of fuel in the tank. Residues in the fuel or a defective air filter can get dirt into the carburettor. The carburetor must be removed and cleaned.
Which type of fuel can be used for the lawnmower (4-stroke engine)?
It can take any petrol with min. 77 oct. Super Unleaded fuel is 95 oct and can be safely used. Each motor is suitable for E10 - Do not store fuel for over 4 weeks as it will start to go bad if untreated.
Which type of oil can be used for AL-KO lawn mower (4-stroke engine)?
An SAE 30 motor oil is recommended, a 5W30 or 10W40 can also be used.
What does EasyStart mean on the Briggs & Stratton engine?
The EasyStart technology is a Briggs & Stratton feature which makes starting the engine up 30-percent easier to start and includes the following features: The starter engages earlier, requiring a shorter and lighter pull on the starter rope. A new carburettor with improved flow guarantees easy starting at low speed. The improved ignition coil provides sufficient ignition energy even at low starter speed.
What does ReadyStart mean to the Briggs & Stratton engine?
The ReadyStart technology always supplies the carburettor with the right amount of petrol. The primer and choke do not need to be pressed. This prevents the engine getting too much petrol. This engine also includes the Easy Start package.
Why is the lawnmower's grassbox not properly filled?
Possible causes: grass too wet, too much long grass, driving speed too fast, dirty mower deck, wrong engine speed, collector box ventilation holes clogged.
Why are the blades of grass on my lawn not cut cleanly?
The blade may need be sharpened, the mower deck cleaned, and the engine speed possibly set. Please contact an AL-KO service partner
The blade is not sharp. Can be reground?
No. The knife edge is designed so that the service life is optimal.
What does SpeedControl mean?
The mowing speed can be adjusted steplessly from approx. 2.5 km / h to approx. 4.5 km / h. Lawn mowers without SpeedControl but with wheel drive run constantly at 3.5 km / h.
How do I overwinter the lawnmower?
Clean the unit, change the air filter, spark plug and oil. The blade may be sharpened and balanced. Store in a dry place.
Highline 51.8 SP-A Self Propelled Petrol Lawnmower
Highline 51.7 SP Self Propelled Petrol Lawnmower
Highline 51.0 SP-H Self Propelled Petrol Lawnmower
|Box Volume in Litres||70||70||70|
|Function||Catching, Mowing, Mulchmowing, Side discharge||Catching, Mowing, Mulchmowing, Side discharge||Catching, Mowing, Mulchmowing, Side discharge|
|Warranty||5 Year Domestic*||5 Year Domestic*||5 Year Domestic*|
|Displacement in cc||139||163||170|
|Cutter Deck||Steel Plate||Steel Plate||Steel Plate|
|Motor||AL-KO Pro 145 QSS||B&S Series 650 Exi||Honda GCV 170|
|Wheel Drive Type||1 gear||1 gear||1 gear|
|Ø Wheels, Front / Rear||200 / 280 mm||200 / 280mm||200 / 280mm|
|Wheels With Ball Bearings||yes||yes||yes|
|For Lawns (in m²)||1,800||1,800||1,800|
|Cutting Width in cm||51||51||51|
|Cutting Height||30-80 mm||30-80 mm||30-80 mm|
|Cutting Height Adjustment||Central, 7-stage||Central, 7-stage||Central, 7-stage|
|Weight in kg approx||35||35.5||38|