Guide · Riding and zero-turn blade sets

42-inch riding mower blade sets

Craftsman, Cub Cadet, John Deere and Oregon 42-inch blade sets differ in blade count and center hole. How to match yours by OEM number and hole.

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Short answer

"42-inch" covers several different blade systems. Craftsman alone sells a two-blade 5-point star set (CMXGZAM110136), a 6-point star set with one blade (CMXGZAM110108) and a two-blade S-shape set (CMXGZAM110191). Match your OEM part number and your center hole, then check the blade count.

Craftsman: three different 42-inch sets

Craftsman's three 42-inch sets look alike in a search, and they are not interchangeable.

  • CMXGZAM110136 is a 42-inch bagging and side-discharging set with two blades and a 5-point star center hole.[1] Craftsman describes it as a replacement for Craftsman, Husqvarna, Poulan and Poulan Pro riding mowers using 532138971, 532138498, 532127843 or 127843.[1]
  • CMXGZAM110108 is a 42-inch bagging and side-discharging set with one blade and a 6-point star mounting hole.[2]
  • CMXGZAM110191 is a 42-inch ultra high-lift bagging set with two blades and an S-shaped center hole, which Craftsman says prevents upside-down installation.[3]

Pick the one whose OEM list and hole match your old blade. A Craftsman tractor is not enough to decide. See 5-point star, 6-point star and S-shape holes.

What is an S-shape blade?

An S-shape center hole is a curved, keyed hole that only seats one way. On Craftsman's CMXGZAM110191, that shape means the blades cannot go on upside down.[3] It is a reason to stay with the hole type your mower uses, never to swap.

Cub Cadet

Cub Cadet's 42-inch Xtreme mulching blade set 490-110-C202 contains two blades with an S-shape center hole and fits Cub Cadet lawn tractors and RZT mowers with 42-inch decks.[4] Cub Cadet sells its mulching kit 19A30055100 separately for Cub Cadet lawn tractors and zero-turn mowers with 42-inch decks.[5] See the Cub Cadet XT1 and XT2 Enduro page.

John Deere D100 42-inch

John Deere's D100 42-inch maintenance sheet lists blade GX22151 and blade kit GY20850.[6] Our John Deere blade guide and the D100 42-inch page have the full list.

Toro and Exmark 42-inch

Oregon sells 42TGR1HL2 as a set of two for 42-inch Toro/Exmark riding mower decks.[7]

Husqvarna

Husqvarna's fit chart classifies baggers and mulch kits by deck size and deck style, so the deck style is part of the match.[8] For blades, use your old blade's part number. Craftsman's CMXGZAM110136 covers Husqvarna riding mowers only when they use one of the numbers on its list, and the Husqvarna YTH18542 page shows the records we hold.

42-inch sets at a glance

SetBladesCenter holeWhat the maker says it fits
Craftsman CMXGZAM11013625-point starCraftsman, Husqvarna, Poulan, Poulan Pro mowers using 532138971, 532138498, 532127843 or 127843
Craftsman CMXGZAM11010816-point starNot listed by model
Craftsman CMXGZAM1101912S-shapeCraftsman mowers using 742P05177 / 742-05177
Cub Cadet 490-110-C2022S-shapeCub Cadet lawn tractors and RZT mowers with 42 in decks
Oregon 42TGR1HL22not in our record42 in Toro/Exmark riding mower decks
John Deere GY20850 (kit)not statednot statedD100 with 42 in deck

Oregon's catalog records every hole name inside a part-specific record,[9] so a matching name is only the first check. See the 42-inch deck page for more.

Approved 42-inch sets

Picks that fit3 products

Craftsman CMXGZAM110136, set of 2 5-point star blades: only if your old number is 532138971, 532138498, 532127843 or 127843.

More on choosing

Cub Cadet 490-110-C202, set of 2 S-shape blades: Cub Cadet lawn tractors and RZT mowers with 42 in decks. Oregon D-42-2G, set of 2: only if Oregon's own replacement list or part finder names your mower or original blade number. On Amazon, check that Ships from / Sold by is Amazon.com or the brand.

Picks that fit2 products

EGO 42-inch Z6 zero-turn or T6 tractor TR4204 only: the AB4200D replacement set of two 21-inch blades, or the AB4201D high-lift bagging set of two.

More on choosing

EGO states no center hole, so they are not for other brands' 42-inch decks. On Amazon, check that Ships from / Sold by is Amazon.com or EGO.

Next

Questions

Are all 42-inch mower blades the same?

No. Craftsman alone sells 42-inch sets with a 5-point star, a 6-point star and an S-shape hole, with one or two blades.[1][2][3]

Which Craftsman 42-inch blade set do I need?

The one whose OEM list and hole match your old blade. CMXGZAM110136 replaces 532138971, 532138498, 532127843 or 127843 and has a 5-point star hole.[1]

What is an S-shape blade?

A blade with a curved, keyed center hole. Craftsman says the S-shape on CMXGZAM110191 means the blades cannot be installed upside down; Cub Cadet's 490-110-C202 also uses an S-shape hole.[3][4]

Does a 42-inch blade set include both blades?

Check the count. CMXGZAM110136 and CMXGZAM110191 contain two blades; CMXGZAM110108 contains one.[1][2][3]

Sources and changes

  1. 42 in Bagging and Side Discharging Blade Set (CMXGZAM110136) (CRAFTSMAN) · Manufacturer · Blade count, center hole, replaced part numbers · checked 17 Oct 2026
  2. 42 in. Bagging and Side Discharging Blade Set (CRAFTSMAN) · Manufacturer · Single blade, 6-point star, OEM numbers · checked 17 Oct 2026
  3. 42 in Ultra High-Lift Bagging Blade Set (CRAFTSMAN) · Manufacturer · Two-blade S-shape set for 742P05177 mowers · checked 17 Oct 2026
  4. 42" Xtreme Mulching Blade Set packaging (490-110-C202) (Cub Cadet (image hosted by The Home Depot CDN)) · Manufacturer · Package text: blade count, S-shape center hole, deck fit · checked 17 Oct 2026
  5. Mulching Kit for 42-inch Cutting Decks (19A30055100) (Cub Cadet) · Manufacturer · Kit contents, supersession, compatibility statement · checked 17 Oct 2026
  6. Maintenance Reminder Sheet: D100 with 42" Deck (John Deere) · Manufacturer · D100 42-inch deck maintenance part numbers · checked 17 Oct 2026
  7. Blades (Oregon Tool) · Manufacturer · Online blade catalogue: filters and first-page set listings · checked 17 Oct 2026
  8. Fit-up chart (Husqvarna) · Manufacturer · Accessory fit by deck size, style and application · checked 17 Oct 2026
  9. Blades by Length (Oregon Tool) · Manufacturer · Blade dimension table: length, center hole, outer hole, center to center, width, thickness, offset, air lift, L-cut, type · checked 17 Oct 2026
  • : First published.

Next editorial review due 16 Jan 2027.