Mountfield HP42 16″ Petrol Lawn Mower

Why buy the Mountfield HP42 16″ Petrol Lawn Mower? Reliable 123cc STIGA ST120 Autochoke petrol engine for easy starting Compact 41cm (approx. 16″) cutting width, perfect for small to medium lawns Versatile 3-in-1 cutting system: collect, mulch, or rear discharge Durable steel deck with 6 centralised cutting height positions (22-65mm) Spacious 60-litre grass collector with a handy ‘bag full’ indicator Includes a mulching plug for naturally fertilising your lawn An Ideal Mower for Smaller Gardens The Mountfield HP42 is a lightweight and user-friendly hand-propelled petrol lawnmower, expertly designed for maintaining small to medium-sized gardens up to 1000m². Its combination of a dependable engine, robust construction, and practical features makes it a superb choice for homeowners seeking reliability and a high-quality finish. Efficient STIGA Power At the core of the HP42 is the dependable STIGA ST 120 OHV Autochoke engine. This 123cc powerhouse delivers 1.9kW of power at a fixed 2900 rpm, ensuring a smooth and reliable start every time thanks to its recoil starter. The Autochoke system simplifies operation, removing the need for priming or choke adjustments, so you can get to work faster. Adaptable Cutting System Versatility is a key strength of the HP42. The 41cm cutting width is managed by a durable steel deck, offering a choice of three cutting methods. For a tidy finish, the spacious 60-litre hybrid grass collector efficiently gathers clippings and features a ‘bag full’ indicator to prevent overfilling. For a more natural approach, the included mulching plug can be easily fitted. This function finely shreds the grass clippings and returns them to the lawn, acting as a natural, nutrient-rich fertiliser. A rear discharge option is also available for when collection is not required. Adjusting the cut is simple, thanks to a single centralised lever that offers six distinct cutting height positions, ranging from a close 22mm up to a longer 65mm, allowing you to tailor the finish to your lawn’s condition. Designed for Convenience Weighing just 23kg, the Mountfield HP42 is easy to manoeuvre around garden obstacles. The ergonomic, soft-grip handlebar is adjustable and folds down, making storage compact and straightforward. The grooved wheels on bushings ensure smooth travel across the lawn, contributing to an effortless mowing experience. As an authorised UK dealer for Mountfield, Sims Garden Machinery offers more than just a box. With a century of experience, our trained sales staff at our Stratford-upon-Avon showroom can ensure this is the right mower for your needs. For local customers, our service includes a comprehensive pre-delivery inspection (PDI) by our trained mechanics, ensuring your new mower is built, tested, and ready to use. We also offer free local delivery and a handover demonstration to show you how to operate it safely and effectively. This commitment to service ensures you receive a machine that’s ready to perform from day one, backed by our full workshop support. Not sure which machine or part is right for you? Our team is here to help. Contact us today for expert advice. Technical Specification Specification Value Power Source Petrol Power 1.9 kW Engine Brand STIGA Engine Model ST 120 OHV Autochoke Displacement 123 cm³ Engine Rotation Speed 2900 rpm Starter Recoil Fuel Tank Capacity 0.75 L Engine Oil Tank Capacity 0.5 L Maximum Mowing Area 1000 m² Driving Push Cutting Width 41 cm Cutting Method Collecting, Mulching, Rear discharge Deck Material Steel Cutting Height Adjustment Centralized Cutting Height Positions 6 positions Cutting Height Range 22 – 65 mm Collector Capacity 60 L Collector Type Hybrid with warn indicator Handlebar Type Ergonomic with soft grip Wheels 200/200 grooved wheels on bushings Foldable Handlebar Yes Adjustable Handlebar Yes Product Weight 23 kg Guaranteed Sound Power Level (LwA) 95 dB(A) SKU 2L0431048/M19 EAN/UPC 8008984815858 Why buy from Sims Garden Machinery? Authorised main dealer We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on. Real people, real support No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help. Expert advice — not pushy sales Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine. Established, independent family business We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth. Frequently Asked Questions What size garden is the Mountfield HP42 suitable for? The Mountfield HP42, with its 41cm (approx. 16″) cutting width, is ideally suited for small to medium-sized gardens, with a recommended maximum mowing area of up to 1000 square metres. What cutting options does the HP42 offer? This is a versatile 3-in-1 mower. You can choose to collect the clippings in the 60-litre grass bag, use the included mulching plug to finely chop and return them to the lawn as a natural fertiliser, or opt for rear discharge when collecting isn’t necessary. Is the mower difficult to assemble from the box? The mower arrives almost fully assembled, requiring only minimal and straightforward setup of elements like the handlebar. However, when you purchase from an authorised dealer like Sims Garden Machinery, local customers benefit from our Pre-Delivery Inspection (PDI) service, where our trained mechanics build and test the machine for you, ensuring it’s ready for immediate use upon delivery. What type of fuel and oil are recommended for the HP42 engine? The STIGA ST 120 engine runs on standard unleaded petrol. For engine oil, it is highly recommended to use a specific high-quality 4-stroke engine oil to ensure optimal performance and lubrication. Please refer to the engine manual for full details. 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