John Deere LA100 Mower Blade Size

Quick answer:

The John Deere LA100 mower blade part number found is GX22151. The blade set part numbers found are GY20852 and GY20850. The blade measurement captured is center hole 0.62 in (16 mm). The deck uses 2 blades.

Blade part #GX22151
Blade set part #GY20852 and GY20850
Blade sizecenter hole 0.62 in (16 mm)
Blade count2 blades

John Deere LA100 Mower Blade Size and Part Numbers

Mower blade part number GX22151
Mower blade set part number GY20852 and GY20850
Blade center hole size 0.62 in (16 mm)
Number of blades 2 blades
Blade type mulching

John Deere LA100 Blade Notes

Blade note The John Deere LA100 blade listing captured here shows single blade part number GX22151, blade set part numbers GY20852 and GY20850, and center hole 0.62 in (16 mm). Use this as a buying guide, then match the blade position, deck size and center-hole style before spending money
Deck note For the John Deere LA100, the captured deck information is blade count 2 blades. Match the blades to the fitted deck, not just the tractor model name
Blade type note The John Deere LA100 blade style captured here is mulching. Blade type affects airflow and clipping handling, not just cut width
Fitment note The blunt rule with the John Deere LA100: part number and center hole beat guesswork. A blade can be the right length and still be wrong

John Deere LA100 Mower Blade FAQ

Why does the John Deere LA100 blade center hole matter?

The captured center-hole detail is 0.62 in (16 mm). If the hole shape or size is wrong, the blade may not seat correctly on the spindle even if the length looks right

What is the difference between the John Deere LA100 blade number and blade set number?

The captured single blade number is GX22151, while the captured blade set number is GY20852 and GY20850. Use the single blade number for one replacement and the set number when replacing the full deck set

Which blade type should you use on the John Deere LA100?

The blade type captured is mulching. Use that against the captured fitment value GX22151. High-lift helps bagging/discharge; mulching blades need the right mulching setup

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.