The blade set part number found is TCU21475. The blade measurement captured is thickness 0.188 in (5 mm) and center hole 1 in (25 mm).
Blade set part #TCU21475
Blade sizethickness 0.188 in (5 mm) and center hole 1 in (25 mm)
John Deere Z915B Mower Blade Size and Part Numbers
Mower blade set part number
TCU21475
Blade thickness
0.188 in (5 mm)
Blade center hole size
1 in (25 mm)
Blade type
high-lift, mulching, bagging, and Gator
Blade Size Comparison Chart
Blade thickness comparison
This model
0.188 in
Average
0.188 in
Low
0.125 in
High
0.25 in
John Deere Z915B Blade Notes
Blade note
The John Deere Z915B blade listing captured here shows blade set part number TCU21475 and thickness 0.188 in (5 mm) and center hole 1 in (25 mm). Do not buy purely from model name if the mower deck or serial range is different
Blade type note
For the John Deere Z915B, blade type is listed as high-lift, mulching, bagging, and Gator. Pick the blade style for the job: clean discharge, bagging lift, or mulching
Fitment note
Before ordering John Deere Z915B blades, compare the old blade stamp, center-hole shape, blade length and deck size. Close-looking blades can still be wrong
John Deere Z915B Mower Blade FAQ
Why does the John Deere Z915B blade center hole matter?
The captured center-hole detail is 1 in (25 mm). If the hole shape or size is wrong, the blade may not seat correctly on the spindle even if the length looks right
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.
