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Mountfield 145cc Honda Engine 51cm Self-Propelled Petrol Lawn Mower - Model SP51H

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Estimated delivery time of 5 business days


The Mountfield SP51H is a tough, dependable and easy to use a stylish mower. Self-propelled with power to the rear wheels, there is no need to push, making this an ideal mower for maintaining your lawn with minimal effort, especially if it has slopes. Powered by an industry leading 145cc Honda OHV Autochoke engine, it has a 51cm cutting width and 6 cutting heights ranging from 22-80mm. It is also fitted with a cone clutch transmission (DSC) for smooth acceleration. The SP51H has a deep drawn pressed steel chassis giving superior strength and collecting ability.

The large grass collector has a collecting capacity of 60 litres and a warning to let you know when it is full. To save time and to add a nitrogen rich mulch to your lawn, simply fit the mulching plug (supplied with the mower) and clippings are finely cut and redistributed back onto the lawn surface as you mow. The handle is easily folded down to make storage simple and space-effective. Suitable for medium and larger lawns up to 2,500m².

Supported by Service Link, an aftersales help and advice website, phone line (0800 121 6585) and a national service network of garden machinery repair specialists.





  • Instructions Manual
  • Self-propelled (no need to push)
  • Powerful 145cc Honda OHV Autochoke engine
  • 4-stroke petrol engine with a separate oil dipstick
  • Requires SAE30 engine oil (not supplied)
  • 51cm cutting width
  • Single lever cutting height adjustment
  • 6 cutting height positions (22-80 mm)
  • 60 litre grass collector with full indicator
  • 2-year Manufacturer’s warranty




Bag Capacity 60 Litres
Brand Mountfield
Colour Red
Cutting Width 51 cm
Dimensions H 110 x W 54 x D 157 cm
Engine 145cc
Fuel Type Petrol
Mechanism Self-Propelled
Type Lawn Mower
Weight 32 kg