The John Deere 140 mower blade part number found is GX20250. The blade set part number found is UC20448. The blade measurement captured is thickness 0.188 in (5 mm) and center hole 0.62 in (16 mm).
John Deere 140 Mower Blade Size and Part Numbers
| Mower blade part number | GX20250 |
|---|---|
| Mower blade set part number | UC20448 |
| Blade thickness | 0.188 in (5 mm) |
| Blade center hole size | 0.62 in (16 mm) |
| Blade type | high-lift, mulching, standard, and 3-in-1 |
Blade Size Comparison Chart
Blade thickness comparison
John Deere 140 Blade Notes
| Blade note | The John Deere 140 blade listing captured here shows single blade part number GX20250, blade set part number UC20448, and thickness 0.188 in (5 mm) and center hole 0.62 in (16 mm). Confirm the number against the deck tag, old blade stamp or official parts diagram before ordering |
|---|---|
| Blade type note | The blade type captured for the John Deere 140 is high-lift, mulching, standard, and 3-in-1. High-lift is usually better for bagging, while mulching blades are for chopping clippings finer under a compatible deck |
| Fitment note | Blades are cheap until you buy the wrong set twice. On the John Deere 140, confirm part number, deck size and blade count before buying |
John Deere 140 Mower Blade FAQ
Can you modify a John Deere 140 blade center hole to fit?
Do not do that. The captured center-hole detail is 0.62 in (16 mm). Grinding or drilling a mower blade can ruin balance and create vibration
What is the difference between the John Deere 140 blade number and blade set number?
The captured single blade number is GX20250, while the captured blade set number is UC20448. 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 140?
The blade type captured is high-lift, mulching, standard, and 3-in-1. Use that against the captured fitment value GX20250. High-lift helps bagging/discharge; mulching blades need the right mulching setup
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.


