The John Deere D170 mower blade part number found is GY20679. The blade set part numbers found are M170476 and M170477. The deck uses 3 blades.
John Deere D170 Mower Blade Size and Part Numbers
| Mower blade part number | GY20679 |
|---|---|
| Mower blade set part number | M170476 and M170477 |
| Number of blades | 3 blades |
| Blade type | high-lift, mulching, and bagging |
John Deere D170 Blade Notes
| Blade note | The John Deere D170 blade listing captured here shows single blade part number GY20679 and blade set part numbers M170476 and M170477. 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 D170, 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 D170 blade style captured here is high-lift, mulching, and bagging. Blade type affects airflow and clipping handling, not just cut width |
| Fitment note | For the John Deere D170, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or old blade before ordering |
John Deere D170 Mower Blade FAQ
Should you buy one John Deere D170 blade or a full set?
The single blade number captured is GY20679, and the set number captured is M170476 and M170477. If one blade is bent from damage, one may be fine; if they are worn down, replacing the full set usually gives a cleaner cut
Which blade type should you use on the John Deere D170?
The blade type captured is high-lift, mulching, and bagging. Use that against the captured fitment value GY20679. High-lift helps bagging/discharge; mulching blades need the right mulching setup
What should you double-check with the John Deere D170 blade part number?
The captured blade part number is GY20679. Because the physical blade measurements are missing here, check the old blade stamp, deck tag or official parts diagram before ordering
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.
