Deck size
21-inch mower parts: bags, blades and holes makers list
21-inch parts with their makers' model lists: RYOBI AC21GB bag and AC04025 blade, Oregon 21-inch Gator G3 blades with different holes, Troy-Bilt's mulch plug.
Also listed as 21 in, 21"
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Short answer
"21-inch" narrows the search but does not pick the part. Two Oregon Gator G3 blades sold as 21-inch class, 96-347 and 91-635, have different center holes (5/8 in and 3/4 in) and offsets. RYOBI's 21-inch bag and blade each list exact models, and EGO's 42-inch Z6 bagger uses 21-inch blades, so a blade length is the blade's own spec, not the deck's name.
What fitsAll 2 items that fit
- High-lift bagging set (EGO)EGO AB2102D high-lift bagging blade set for 21 in Select Cut mowersCheck price on Amazon
Key facts
- Mower types
- Not confirmedThe 21-inch part pages read name mower models, not a mower class.
- Blades per deck
- EGO AB2102D: an upper blade and a lower blade on EGO's Select Cut mowers.[1]No other 21-inch maker page read states a blade count.
- Blade lengths makers list
- Oregon 96-347: 21 in Gator G3. Oregon 91-635: 21-1/8 in Gator G3. RYOBI AC04025 and EGO AB2102D are described as 21-inch blades.[2][3][4][1][5]EGO also lists 21-inch bagging blades in its ABK4200 kit for the 42-inch Z6 zero-turn.
- Center holes seen
- Oregon 96-347: 5/8 in center hole. Oregon 91-635: 3/4 in center hole.[2][3]RYOBI and EGO give no center hole for their 21-inch blades.
- Blade sets made for it
- EGO AB2102D high-lift bagging set for the LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP and LM2156SP. RYOBI AC04025 single blade for the RY401014, RY401016, RY40HPLM05 and RY40HPLM01.[1][4]RYOBI excludes the RY40LM01, RY40LM10-Y and RY401130 from AC04025.
- Bags and baggers listed for it
- RYOBI AC21GB 21-inch fabric bag, frame not included, listed for RY401140/RY401014, RY401150/RY401015, RY401200/RY401020, RY401210/RY401021, RY401220/RY401022, RY40HPLM01, RY40HPLM02 and RY40HPLM05.[6]
- Mulching kits and plugs
- Troy-Bilt 687-06029 21-inch hinged mulch plug; replaces 687-02516, 687-02516A, 987-02516 and 987-02516A.[7]Troy-Bilt's page gives no model list. Match the old part number, never the size alone.
- Deck styles
- Not confirmedNo 21-inch maker page read separates deck styles.
- Deck wheels listed for it
- Not confirmedNo wheel whose maker names a 21-inch deck in the sources read.
- Not confirmed
- Not confirmedMower class, wheels and deck styles; center holes for the RYOBI and EGO blades; models for Troy-Bilt's plug. Honda and Greenworks 21-inch parts could not be verified.
Watch out for
- Two 21-inch-class Oregon Gator G3 blades have different holes: 96-347 is 5/8 in, 91-635 is 3/4 in. Measure your hole; never drill, grind or file a blade to fit.
- RYOBI's AC04025 excludes the RY40LM01, RY40LM10-Y and RY401130, even though they are RYOBI mowers.
- The RYOBI AC21GB is the fabric only; the frame is not included.
What fits
Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.
High-lift bagging set (EGO)
EGO AB2102D high-lift bagging blade set for 21 in Select Cut mowersChoose set AB2102D for the six listed Select Cut models.
EGO describes a 21-inch blade for the LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP and LM2156SP. Nuts and bolts are not included.
RYOBI bagging blade (Oregon)
Oregon J‑21‑1 21 in bagging blade for RYOBI battery push mowersChoose Oregon J-21-1, one blade.
Oregon lists it for 21-inch RYOBI battery push mowers but gives no dimensions; compare it with your old blade before fitting.
Use this page to narrow a search, then confirm the part number for your exact model.
Questions
Do all 21-inch mower blades have the same center hole?
No. Oregon's 21-inch Gator G3 96-347 has a 5/8 in hole, while its 21-1/8 in G3 91-635 has a 3/4 in hole and a different offset.[2][3]
Does the RYOBI AC21GB fit every 21-inch RYOBI mower?
RYOBI lists it for eight specific models, starting with RY401140/RY401014. It is fabric only, with the frame not included.[6]
Can a 21-inch blade go on a bigger deck?
Blade length and deck width are separate figures. EGO's ABK4200 kit for its 42-inch Z6 zero-turn includes 21-inch bagging blades, so always check the blade's own part number.[5]