The John Deere 737 mower blade part numbers found are GX21784 and GY20852. The blade set part number found is GX21784. The blade measurement captured is width 3 in (76 mm) and thickness 0.236 in (6 mm). The deck uses 3 blades.
John Deere 737 Mower Blade Size and Part Numbers
| Mower blade part number | GX21784 and GY20852 |
|---|---|
| Mower blade set part number | GX21784 |
| Blade width | 3 in (76 mm) |
| Blade thickness | 0.236 in (6 mm) |
| Number of blades | 3 blades |
Blade Size Comparison Chart
Blade width comparison
Blade thickness comparison
John Deere 737 Blade Notes
| Blade note | The John Deere 737 blade listing captured here shows single blade part numbers GX21784 and GY20852, blade set part number GX21784, and width 3 in (76 mm) and thickness 0.236 in (6 mm). Confirm the number against the deck tag, old blade stamp or official parts diagram before ordering |
|---|---|
| Deck note | For the John Deere 737, the captured deck information is blade count 3 blades. This helps separate 42-inch, 48-inch, 54-inch and larger deck blade setups |
| Fitment note | Blades are cheap until you buy the wrong set twice. On the John Deere 737, confirm part number, deck size and blade count before buying |
John Deere 737 Mower Blade FAQ
Should you buy John Deere 737 blades by length only?
No. The blade width found is 3 in (76 mm). That is a normal mower blade width range. Width affects airflow, lift and clipping movement under the deck. Use length, width, center hole and OEM part number together where possible
What is the difference between the John Deere 737 blade number and blade set number?
The captured single blade number is GX21784 and GY20852, while the captured blade set number is GX21784. Use the single blade number for one replacement and the set number when replacing the full deck set
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.
