The John Deere Z850A mower blade part number found is TCU21475. The blade set part number found is TCU21475. The deck uses 3 blades.
Blade part #TCU21475
Blade set part #TCU21475
Blade count3 blades
John Deere Z850A Mower Blade Size and Part Numbers
Mower blade part number
TCU21475
Mower blade set part number
TCU21475
Number of blades
3 blades
Blade type
high-lift and mulching
John Deere Z850A Blade Notes
Blade note
The John Deere Z850A blade listing captured here shows single blade part number TCU21475 and blade set part number TCU21475. Do not buy purely from model name if the mower deck or serial range is different
Deck note
For the John Deere Z850A, the captured deck information is blade count 3 blades. Deck size matters because the same model family can use different blade kits
Blade type note
For the John Deere Z850A, blade type is listed as high-lift and mulching. Pick the blade style for the job: clean discharge, bagging lift, or mulching
Fitment note
For the John Deere Z850A, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or old blade before ordering
John Deere Z850A Mower Blade FAQ
Which blade type should you use on the John Deere Z850A?
The blade type captured is high-lift and mulching. Use that against the captured fitment value TCU21475. High-lift helps bagging/discharge; mulching blades need the right mulching setup
Is the captured John Deere Z850A blade part number enough to buy from?
The captured blade part number is TCU21475. That helps with OEM lookup, but the blade length, width and center hole were not fully captured here. Confirm the deck or old blade before trusting an aftermarket cross-reference
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.
