The Mountfield 51 cm Lawn‑Mower Blade is the exact OEM replacement you need for a crisp, efficient cut on your Mountfield mower. Crafted from premium steel, this 510 mm blade delivers strong durability and smooth mulching performance while keeping power consumption low.
Key specs
– Length: 51 cm (510 mm)
– Width: 5.8 cm (58 mm)
– Central hub hole: 1.8 cm (18 mm)
– Side mounting hole: 0.8 cm (8 mm)
– Material: high‑grade steel (part # 181004381/1)
Why it works
– Sharpened ends help collect grass and improve mulching results.
– Easy to install and remove – no special tools required.
– Designed for long‑life service, reducing the need for frequent replacements.
Fitment
Compatible with a wide range of Mountfield models, including SP534, SP530, SP535, SP536 and many variants from the 2004‑2016 production years (e.g., 5020 PD, 511 PD Inox, HW512 PD, M5320 PD/ES). Check your mower’s model number to confirm.
Upgrade to this genuine Mountfield blade for reliable mowing, smoother grass handling, and a blade that stands up to season after season of use.





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