The blade measurement captured is length 17 in (432 mm) and center hole 0.81 in (21 mm). The deck uses 3 blades.
Blade sizelength 17 in (432 mm) and center hole 0.81 in (21 mm)
Blade count3 blades
John Deere X749 Mower Blade Size and Part Numbers
Blade length
17 in (432 mm)
Blade center hole size
0.81 in (21 mm)
Number of blades
3 blades
Blade Size Comparison Chart
Blade length comparison
This model
17 in
Average
16 in
Low
12 in
High
20 in
John Deere X749 Blade Notes
Blade note
The John Deere X749 blade listing captured here shows length 17 in (432 mm) and center hole 0.81 in (21 mm). Do not buy purely from model name if the mower deck or serial range is different
Deck note
For the John Deere X749, the captured deck information is blade count 3 blades. Deck size matters because the same model family can use different blade kits
Fitment note
For the John Deere X749, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or old blade before ordering
John Deere X749 Mower Blade FAQ
Why can the right-length John Deere X749 blade still be wrong?
The blade length found is 17 in (432 mm), but length alone does not confirm fitment. Center-hole shape, blade offset, sail height and deck size can all change fit
Can you modify a John Deere X749 blade center hole to fit?
Do not do that. The captured center-hole detail is 0.81 in (21 mm). Grinding or drilling a mower blade can ruin balance and create vibration
Official information note
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.
