COBRA M51SPCVX Petrol Lawn Mower
Built for versatility and ease of use, the Cobra M51SPCVX combines a strong 149cc engine, self-propelled drive, and wide 51cm cutting deck. Featuring collect, mulch, and side discharge functions, it makes maintaining larger lawns quicker, cleaner, and much more comfortable.
RRP: £382.99
Our Price: £349.99 (inc VAT)
Out of stock, available to pre-order
Frequently bought together
Supplied boxed as standard. Choose optional assembly to have your mower delivered fully assembled, tested, and ready to mow (just add fuel).
About the COBRA M51SPCVX Petrol Lawn Mower
Cobra M51SPCVX Petrol Lawnmower – Powerful Performance with Precision Control
A new, more advanced version of the Cobra M51SPC lawnmower, the Cobra M51SPCVX is designed for gardeners who want a confident, capable mower that delivers an excellent finish with minimal fuss. Built to manage medium to large lawns, it boasts an intelligent design, strong engine performance, and versatile cutting options. With a wide 51cm (20-inch) deck and Cobra’s advanced Vortex Airflow system, this self-propelled petrol mower brings together power, efficiency, and ease of use in one exceptionally well-balanced machine.
Strong and Reliable Engine Performance
At the core of the Cobra M51SPCVX is the DG650 149cc OHV engine. This robust power unit is engineered to cope with demanding mowing conditions, including thicker grass and uneven ground. Its overhead valve design improves fuel efficiency while maintaining consistent output, giving you smooth and dependable performance throughout each mowing session. Whether you’re cutting regularly or tackling thick, neglected grass, this engine responds with the power needed.
Effortless Self-Propelled Drive
Mowing larger lawns can be tiring, which is why the M51SPCVX features a self-propelled drive system. This means the mower moves forward under its own steam, reducing the physical effort required from the operator. Therefore, it’s far easier to maintain steady progress up slopes or wide open areas, helping you achieve a uniform cut without tiring yourself out.
Wide Cutting Deck with Front Grass Combs
The 51cm cutting width allows you to cover more ground with fewer passes, making mowing quicker and more efficient. Integrated front combs gently lift flattened grass blades before cutting, ensuring an evenly trimmed lawn. This design helps prevent missed patches and contributes to a neat, professional-looking finish, even in areas where grass growth is uneven.
Flexible Cutting Height Adjustment
With seven cutting height positions ranging from 25mm to 75mm, the Cobra M51SPCVX lawn mower adapts easily to seasonal changes and lawn conditions. A single height adjustment lever makes switching between settings quick and simple. Lower heights are ideal for a refined summer finish, while higher settings are well suited to longer grass or early-season growth.
Edge-to-Edge Cutting Accuracy
The mower’s deck is aligned with both the front and rear wheels, allowing grass to be cut cleanly along borders, fences, and garden edges. This edge grass cutting system reduces the need for additional trimming and helps create sharp, tidy lines around the lawn with minimal extra effort.
Vortex Airflow Collection System
A defining feature of the M51SPCVX is its volute-shaped Vortex Airflow deck. This system improves airflow beneath the deck, lifting grass more effectively and packing clippings tightly into the collector. Even in damp or dense conditions, grass collection remains efficient and consistent. The result is a cleaner cut and fewer interruptions to empty the bag.
Large Capacity Grass Collection
Grass clippings are collected into a generous 60-litre fabric bag, allowing for longer mowing sessions before it needs emptying. A built-in bag full indicator clearly shows when capacity has been reached, helping you avoid blockages and maintain optimum collection performance.
Side Discharge for Overgrown Areas
When grass is too long to collect or when you prefer not to use the collector, side discharge offers a practical alternative. By fitting the side discharge chute, clippings are released neatly to the side of the mower. This is particularly useful when reclaiming overgrown lawns or managing rougher grassed areas.
Mulching as Standard
The M51SPCVX Cobra lawnmower also includes a mulch plug as standard, giving you another option to recycle clippings back onto the lawn. Distinct from the side discharge function, mulching finely cuts the grass, returning valuable nutrients to the soil. This helps promote healthier growth while reducing the need for fertiliser and grass disposal.
Comfortable and Adjustable Handles
Soft-grip handles reduce vibration and improve control, making longer mowing sessions more comfortable. Operator comfort is further enhanced through three handle-angle adjustments, allowing you to adopt the ideal posture. When storage space is limited, the cam-lock folding handles allow the mower to be compactly stored away.
Durable Build and Trusted Warranty
The deck is constructed from robust steel, offering durability and stability during use. Weighing 30.6kg, the M51SPCVX mower feels solid without being cumbersome. Designed in the UK, it is backed by a two-year domestic warranty, providing you with complete peace of mind when you purchase.
A Versatile Mower Built for A1 Results
The Cobra M51SPCVX is a well-rounded petrol lawnmower that combines power, control, and cutting versatility. From its strong engine and self-propelled drive to its advanced airflow system and multiple cutting modes, it is built to deliver consistent results across a wide range of lawn conditions. If you’re looking for a dependable mower that makes light work of larger lawns while delivering an A1 finish, the Cobra M51SPCVX is an excellent choice. Order yours today and enjoy a far more efficient and comfortable mowing experience.
Frequently Asked Questions
Q: Is the Cobra M51SPCVX suitable for large lawns?
Yes, its powerful 149cc engine, wide 51cm cutting deck, and self-propelled drive make it ideal for medium to large gardens.
Q: Does the Cobra M51SPCVX allow mulching as well as grass collection?
Yes, this petrol lawn mower includes a mulching plug as standard, allowing you to discharge finely cut clippings back onto the lawn as a nutrient-rich mulch.
Take a Detailed Look at the Cobra M51SPCVX Lawn Mower
COBRA M51SPCVX Petrol Lawn Mower Technical Information
- Engine: Cobra DG650 OHV
- Engine Brand: Cobra
- Displacement: 149 cc
- Power Type: Petrol
- Drive: Self-propelled
- Speed: —
- Cutting Width: 51 cm / 20″
- Cutting Height: 25–75 mm (7-stage)
- Collection System: 3-in-1 – Collect, Mulch & Side Discharge (Vortex)
- Grass Bag Capacity: 60 L
- Grass Bag Full Indicator: Yes
- Deck Material: Steel
- Wheels / Roller: 4-wheeled
- Folding Handles: Yes (cam lock)
- Weight: 30.6 kg
- Domestic Warranty: 2 years

















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