The John Deere 155C mower blade part number found is GX21784. The blade set part number found is M154202. The blade measurement captured is thickness 0.187 in (5 mm) and center hole star / 0.75 in (19 mm).
John Deere 155C Mower Blade Size and Part Numbers
| Mower blade part number | GX21784 |
|---|---|
| Mower blade set part number | M154202 |
| Blade thickness | 0.187 in (5 mm) |
| Blade center hole size | star / 0.75 in (19 mm) |
| Blade type | high-lift, mulching, standard, bagging, and 3-in-1 |
Blade Size Comparison Chart
Blade thickness comparison
John Deere 155C Blade Notes
| Blade note | The John Deere 155C blade listing captured here shows single blade part number GX21784, blade set part number M154202, and thickness 0.187 in (5 mm) and center hole star / 0.75 in (19 mm). Do not buy purely from model name if the mower deck or serial range is different |
|---|---|
| Blade type note | For the John Deere 155C, blade type is listed as high-lift, mulching, standard, bagging, and 3-in-1. Pick the blade style for the job: clean discharge, bagging lift, or mulching |
| Fitment note | The blunt rule with the John Deere 155C: part number and center hole beat guesswork. A blade can be the right length and still be wrong |
John Deere 155C Mower Blade FAQ
Why does the John Deere 155C blade center hole matter?
The captured center-hole detail is star / 0.75 in (19 mm). If the hole shape or size is wrong, the blade may not seat correctly on the spindle even if the length looks right
Should you buy one John Deere 155C blade or a full set?
The single blade number captured is GX21784, and the set number captured is M154202. 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
Can you swap John Deere 155C blade types?
The blade type captured is high-lift, mulching, standard, bagging, and 3-in-1. You can often choose a different style only if it fits the same deck and spindle setup. Use GX21784 as the fitment starting point
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.
