All the Cobra gardening equipment has been designed in Britain with the British working conditions in mind. The Cobra MM51B is designed to mulch grass in a domestic garden setting. Mulching whilst mowing cuts the grass trimmings into very tiny pieces which are virtually impossible to see. These tiny trimmings are thrown back onto the ground where as they decompose the soil and grass roots are provided with nutrients and essential moisture.

When you use a lawn mower for mulching grass always start on the highest available cutting point and work your way down. Use the 3rd cut rule and only cut a 3rd of the grass height at a time. This will ensure the best cut and finish to the mowing area and reduces the strain on the engine and cutting blade. The Cobra MM51B gives you the choice of 5 cutting height adjustments from 30mm right up to 75mm for the longest grass. The 5 stages can be adjusted using just 1 lever located on the rear right hand wheel. The MM51B is hand-propelled and is powered by a reliable and very efficient 140cc Briggs & Stratton 500E series petrol engine. The 500E Ready Start engines have a best in class performance offering lower emissions. A Briggs and Stratton Ready Start engine has an automatic choke so no priming is needed.


Model : MM51B
Type : Mulcher
Drive : No, hand-propelled
Engine : Briggs & Stratton ReadyStart 500E Series
Engine Capacity : 140cc
Cutting Width : 51cm / 20"
Cutter Deck Material : Steel
Cutting Height Stages : 5 adjustable from 30mm - 75mm
Cutting Height Levers : One
Cutting System : Rotary Blade
Features : Mulch / Side Discharge
Collector : N/A

Warranty : 2 years domestic

Cutting Width
20 Inch / 51cm
Deck Material
Engine Manufacturer
Briggs and Stratton
Mowing Functions
Recoil / Manual

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Cobra MM51B 51cm Push Petrol Mulching Lawn mower

  • Brand: COBRA
  • Product Code: COMM51B
  • Availability: In Stock
  • Our Price: £329.99

  • RRP: £359.99
  • You save: £30.00

Tags: mulching mowers, hand-propelled lawn mower, petrol mowers, Cobra lawn mowers