When the cut starts to look uneven, the blade is usually why. This replacement lawn mower blade is precision-cut from MnB steel with a 510mm working width – made specifically for the Vonhaus 171cc petrol lawn mower and built to restore a clean, consistent finish from the first pass.If you're looking for a new mower rather than a replacement blade, browse the full lawn mower range.Replacement lawn mower blade built to performA worn blade doesn't just affect how the lawn looks, it makes the mower work harder than it should. This replacement lawn mower blade is precision-cut from MnB steel, giving it the strength and rigidity to cut cleanly through grass without dragging or tearing. 510mm cutting width for larger lawnsAt 510mm wide, this mower blade covers a broader path with each pass than a narrower replacement would, making it well suited to the larger lawns the 171cc mower is built for. Fewer runs up and down, a more consistent finish, and less time spent on a job that benefits from getting done efficiently.3mm thick for reliable cutting under loadThe extra thickness matters when the mower is working through denser grass or across uneven ground. At 3mm, this lawn mower blade holds its edge under regular use and cuts cleanly without flexing, maintaining performance through a full season rather than just the first few mows.Made for the Vonhaus 171cc petrol mowerThis blade is designed exclusively for the Vonhaus 171cc petrol lawn mower – a direct fit that removes any guesswork about compatibility. No modifications, or adapters needed; you’ll be mowing again in minutes. Easy to fit, ready to workAt 540g it has a solid feel in hand without being awkward to handle during fitting. The anti-rust, anti-scratch powder coating protects the blade through wet seasons and regular garden use, so it stays in good condition well beyond the first season. If you're maintaining the wider garden too, it works naturally alongside our garden power tools.Spare petrol lawn mower blade, at a glancePrecision-cut MnB steel for clean, reliable cutting.510mm working width for efficient coverage on larger lawns.3mm blade thickness for strength under regular load.Anti-rust, anti-scratch powder coating for lasting durability.Made exclusively for the Vonhaus 171cc petrol lawn mower.The Vonhaus PromiseEvery order comes with free UK delivery, a 2-year warranty, and stock ready to dispatch. Rated Excellent on Trustpilot by over 20,000 customers, Vonhaus is trusted for practical, reliable garden essentials.SKU 3519064 - Spare Petrol Lawn Mower Blade – 171cc
