The Kubota Z421T mower blade part numbers found are K5613-34350 and K5613-34340. The blade set part numbers found are K5613-34350 and K5613-34340. The blade measurement captured is thickness 0.25 in (6 mm). The deck uses 3 blades. The captured deck size is 48 in deck.
Blade part #K5613-34350 and K5613-34340
Blade set part #K5613-34350 and K5613-34340
Blade sizethickness 0.25 in (6 mm)
Blade count3 blades
Deck size48 in deck
Kubota Z421T Mower Blade Size and Part Numbers
Mower blade part number
K5613-34350 and K5613-34340
Mower blade set part number
K5613-34350 and K5613-34340
Blade thickness
0.25 in (6 mm)
Number of blades
3 blades
Deck size
48 in deck
Blade type
mulching and standard
Blade Size Comparison Chart
Blade thickness comparison
This model
0.25 in
Average
0.25 in
Low
0.188 in
High
0.312 in
Mower deck size comparison
This model
48 in
Average
48 in
Low
38 in
High
60 in
Kubota Z421T Blade Notes
Blade note
The Kubota Z421T blade listing captured here shows single blade part numbers K5613-34350 and K5613-34340, blade set part numbers K5613-34350 and K5613-34340, and thickness 0.25 in (6 mm). Confirm the number against the deck tag, old blade stamp or official parts diagram before ordering
Deck note
For the Kubota Z421T, the captured deck information is deck size 48 in deck and 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 Kubota Z421T is mulching and standard. High-lift is usually better for bagging, while mulching blades are for chopping clippings finer under a compatible deck
Fitment note
Before ordering Kubota Z421T blades, compare the old blade stamp, center-hole shape, blade length and deck size. Close-looking blades can still be wrong
Kubota Z421T Mower Blade FAQ
How do you avoid buying the wrong Kubota Z421T blade kit?
Start with the captured deck setup: 48 in deck and 3 blades. Then confirm the blade part number against the deck tag, old blade stamp or parts diagram
Can you swap Kubota Z421T blade types?
The blade type captured is mulching and standard. You can often choose a different style only if it fits the same deck and spindle setup. Use 48 in deck as the fitment starting point
Is the captured Kubota Z421T blade part numbers enough to buy from?
The captured blade part numbers is K5613-34350 and K5613-34340. 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 kubotausa.com before ordering replacement blades.
