Guide · Riding and zero-turn blade sets
John Deere lawn tractor blades
John Deere's D100 42-inch blade GX22151 and kit GY20850, Oregon's 92-105 cross-reference for 48-inch decks, and what Deere says about bagger blades.
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Short answer
John Deere's maintenance sheet for the D100 with a 42-inch deck lists blade GX22151 and blade kit GY20850. For 48-inch decks, Oregon's 92-105 is a 17-1/16 inch, 7-point star blade that Oregon says takes three per 48-inch cut and cross-references John Deere GX21784, GX21785, GX21786, GY20852 and AM137757.
D100 with 42-inch deck
John Deere's D100 42-inch maintenance sheet lists five parts: blade GX22151, blade kit GY20850, bagging kit AM141034, mulching kit AM141033 and gage wheel GX10168.[1]
The sheet labels GX22151 as the blade and GY20850 as the blade kit. It does not describe what the kit contains, so check the kit's listing for its count and hardware before you order. Confirm your serial number and any newer number on John Deere's parts lookup too. See the John Deere D100 42-inch page and the 42-inch deck page.
48-inch decks: Oregon 92-105
Oregon's 92-105 mulching blade is 17-1/16 inches long measured diagonally, with a 7-point star center hole, 2.75-inch width and 0.164-inch thickness.[2] Oregon says it requires three blades for a 48-inch cut.[2]
Oregon lists it as a replacement for John Deere parts including GX21784, GX21785, GX21786, GY20852 and AM137757.[2] That is Oregon's cross-reference, not John Deere's. Match it to your own OEM part number and your deck. See the 48-inch deck page and 7-point star holes.
Three blades per 48 inches is the count for these John Deere applications. Other 48-inch decks use a different number of blades per deck; our blades per deck guide shows why.
S100 to S130: the two-bag collector
John Deere lists its BUC10284 two-bag material collection system with a 6.5-bushel hopper for the S100, S110, S120 and S130 42-inch tractors.[3] Each model row carries the mark "(010,001-)".[3] The page does not say what the mark means, so we do not read it as a serial cutoff. Ask a John Deere dealer what it means for your tractor. See the John Deere S100 42-inch page.
S240: do you need special blades for the bagger?
John Deere lists an optional 6.5-bushel rear bagger for the S240's 42-inch deck and says special blades are not required, though they can be installed for enhanced performance. The same page says high-lift bagging blades are included with the bagger chute.[4] Read both statements together, and check the bagger listing for what it includes. See the John Deere S240 page.
What we could not confirm
We could not confirm John Deere's mulch cover for the 115 with its 42-inch Edge deck, so we publish no part for it. Use John Deere's parts lookup or a dealer.
John Deere parts at a glance
| Mower or deck | Part | What the source says |
|---|---|---|
| D100, 42 in | GX22151 | Blade (John Deere sheet) |
| D100, 42 in | GY20850 | Blade kit (John Deere sheet) |
| D100, 42 in | AM141034 / AM141033 | Bagging kit / mulching kit (John Deere sheet) |
| D100, 42 in | GX10168 | Gage wheel (John Deere sheet) |
| 48 in cut | Oregon 92-105 | 17-1/16 in, 7-point star, three per cut (Oregon) |
| S100 to S130, 42 in | BUC10284 | Two-bag collector, 6.5 bushel, "(010,001-)" (John Deere) |
| S240, 42 in | Rear bagger | 6.5 bushel, special blades not required (John Deere) |
Approved John Deere parts
We have no approved John Deere blade or blade kit yet. These John Deere parts from the same records are approved:
Picks that fit2 products
GX10168 is the gage wheel on John Deere's D100 42 in maintenance sheet; check how many wheels the listing includes.
More on choosing
BUC10284 is John Deere's two-bag collector for the S100, S110, S120 and S130 42 in tractors; confirm your serial with John Deere or a dealer. On Amazon, check that Ships from / Sold by is Amazon.com or John Deere.
Gage wheel for the John Deere D100 42-inch deck
Two-bag system for John Deere S100 to S130 42-inch tractors
John Deere BUC10284 two-bag material collection system, 6.5 bushel
Picks that fit1 product
Aftermarket gage wheel: the Stens 210-051, which Stens lists as replacing GX10168 for the D100 to D170, L100 to L130 and S100 to S240 among others; 5 x 2 in, 5/8-inch bore, sold without a bolt.
More on choosing
On Amazon, check that Ships from / Sold by is Amazon.com or Stens.
Aftermarket deck wheel replacing John Deere GX10168
Stens 210‑051 deck wheel, 5 x 2 in, 5/8 in bore, replaces John Deere GX10168
Next
Questions
What blades fit a John Deere D100 with a 42-inch deck?
John Deere's D100 42-inch maintenance sheet lists blade GX22151 and blade kit GY20850. Confirm your serial on Deere's parts lookup.[1]
What is the difference between GX22151 and GY20850?
The sheet lists GX22151 as the blade and GY20850 as the blade kit. It does not describe the kit's contents, so check the kit listing.[1]
Which aftermarket blade cross-references GX21784?
Oregon lists its 92-105 mulching blade, 17-1/16 in with a 7-point star hole, as a replacement for GX21784 and other John Deere numbers. That is Oregon's cross-reference.[2]
Do I need different blades for a John Deere bagger?
For the S240, John Deere says special blades are not required for its rear bagger, and that high-lift bagging blades are included with the bagger chute.[4]