The John Deere 165 mower blade part number found is GX21785. The blade set part numbers found are M127129, M139802, GX22151, and GY20850.
Blade part #GX21785
Blade set part #M127129, M139802, GX22151, and GY20850
John Deere 165 Mower Blade Size and Part Numbers
Mower blade part number
GX21785
Mower blade set part number
M127129, M139802, GX22151, and GY20850
John Deere 165 Blade Notes
Blade note
The John Deere 165 blade listing captured here shows single blade part number GX21785 and blade set part numbers M127129, M139802, GX22151, and GY20850. Do not buy purely from model name if the mower deck or serial range is different
Fitment note
For the John Deere 165, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or old blade before ordering
John Deere 165 Mower Blade FAQ
What is the difference between the John Deere 165 blade number and blade set number?
The captured single blade number is GX21785, while the captured blade set number is M127129, M139802, GX22151, and GY20850. Use the single blade number for one replacement and the set number when replacing the full deck set
What should you double-check with the John Deere 165 blade part number?
The captured blade part number is GX21785. Because the physical blade measurements are missing here, check the old blade stamp, deck tag or official parts diagram before ordering
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.
