The John Deere X520 mower blade part number found is M168223. The blade set part numbers found are M144176 and M144177. The blade measurement captured is center hole 1 in (25 mm). The deck uses 3 blades.
John Deere X520 Mower Blade Size and Part Numbers
| Mower blade part number | M168223 |
|---|---|
| Mower blade set part number | M144176 and M144177 |
| Blade center hole size | 1 in (25 mm) |
| Number of blades | 3 blades |
| Blade type | high-lift and mulching |
John Deere X520 Blade Notes
| Blade note | The John Deere X520 blade listing captured here shows single blade part number M168223, blade set part numbers M144176 and M144177, and center hole 1 in (25 mm). Confirm the number against the deck tag, old blade stamp or official parts diagram before ordering |
|---|---|
| Deck note | For the John Deere X520, the captured deck information is blade count 3 blades. This helps separate 42-inch, 48-inch, 54-inch and larger deck blade setups |
| Blade type note | The blade type captured for the John Deere X520 is high-lift and mulching. High-lift is usually better for bagging, while mulching blades are for chopping clippings finer under a compatible deck |
| Fitment note | Before ordering John Deere X520 blades, compare the old blade stamp, center-hole shape, blade length and deck size. Close-looking blades can still be wrong |
John Deere X520 Mower Blade FAQ
Why does the John Deere X520 blade center hole matter?
The captured center-hole detail is 1 in (25 mm). If the hole shape or size is wrong, the blade may not seat correctly on the spindle even if the length looks right
Should you buy one John Deere X520 blade or a full set?
The single blade number captured is M168223, and the set number captured is M144176 and M144177. If one blade is bent from damage, one may be fine; if they are worn down, replacing the full set usually gives a cleaner cut
Can you swap John Deere X520 blade types?
The blade type captured is high-lift and mulching. You can often choose a different style only if it fits the same deck and spindle setup. Use M168223 as the fitment starting point
Mistakes do happen. Blade specs can change by year, mower deck, spindle, serial range and regional parts catalog. Please check the operator manual, old blade stamp, deck tag and official John Deere parts catalog before ordering replacement blades.
