Quick answer:
The blade measurement captured is thickness 0.188 in (5 mm) and center hole 0.69 in (17 mm). The deck uses 3 blades.
Blade sizethickness 0.188 in (5 mm) and center hole 0.69 in (17 mm)
Blade count3 blades
John Deere 430 Mower Blade Size and Part Numbers
| Blade thickness | 0.188 in (5 mm) |
|---|---|
| Blade center hole size | 0.69 in (17 mm) |
| Number of blades | 3 blades |
| Blade type | high-lift and mulching |
Blade Size Comparison Chart
Blade thickness comparison
John Deere 430 Blade Notes
| Blade note | The John Deere 430 blade listing captured here shows thickness 0.188 in (5 mm) and center hole 0.69 in (17 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 430, the captured deck information is blade count 3 blades. Match the blades to the fitted deck, not just the tractor model name |
| Blade type note | The John Deere 430 blade style captured here is high-lift and mulching. Blade type affects airflow and clipping handling, not just cut width |
| Fitment note | Before ordering John Deere 430 blades, compare the old blade stamp, center-hole shape, blade length and deck size. Close-looking blades can still be wrong |
John Deere 430 Mower Blade FAQ
Can you modify a John Deere 430 blade center hole to fit?
Do not do that. The captured center-hole detail is 0.69 in (17 mm). Grinding or drilling a mower blade can ruin balance and create vibration
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.



