Maxpower 331528B Mulching Blade Best Overall
- Cut Width
- 21 in.
- Blade Type
- Mulching
- Center Hole
- Bow tie, 5/16 in. outer holes
- Item Weight
- 1.6 lb
A replacement blade is only as good as its hole pattern. The Maxpower 331528B takes the bow-tie spindle used across a long list of 21-inch MTD, Cub Cadet, Troy-Bilt and Craftsman walk-behinds — the 742-0741, 942-0741 and CMXGZAM100067 family — which is more decks than anything else in this group covers. The outer holes measure 5/16 inch and sit 2.5 inches apart. If that doesn't match the blade on your mower, nothing else about this one matters.
What puts it first is coverage plus a genuinely quick swap. It goes on with a single bolt, and we like that nothing else changes — no adapter, no shimming, no second trip to the hardware store. At 1.6 pounds it's light enough to hold one-handed under a push mower, and the mulching profile leaves clippings fine enough that they settle into the lawn instead of sitting on top of it.
The edge is the part to know about. These arrive under a heavy coat of paint, and the cutting edge is inconsistent — some are ready to mow, others want a dozen passes with a mill file before the first cut. Ten minutes on the bench makes it a non-issue, but plan for it rather than being surprised by it. Buy this if you mulch a 21-inch MTD-family deck; if you bag every week, a high-lift blade moves more air.
What We Like
- Fits the widest range of 21-inch decks here
- One-bolt swap takes about five minutes
- Lowest price of any pick in this group
- Mulches clippings fine enough to disappear
Worth Noting
- Single mulching blade, no high-lift bagging profile
The blade we point most 21-inch MTD, Cub Cadet and Troy-Bilt owners to: the widest fitment here, a five-minute swap, and the lowest price of the picks.
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