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Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers
Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers

Genuine Factory Parts 21 in. 3-in-1 Mower Blade For Walk-Behind Mowers

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A 3-in-1 blade that mulches, bags, and discharges without changing parts between mowing jobs.
Genuine Factory Parts MPN CMXGZAM100142
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Genuine Factory Parts item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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About Product Overview

This 21-inch replacement blade is built for walk-behind mowers, giving you a genuine factory fit instead of a generic match. It's a 3-in-1 blade, so it handles mulching, bagging, and side discharge without swapping parts between jobs. Made in the USA and designed to replace OEM part #742-05643, it's a straightforward fix for Craftsman and Troy-Bilt mowers with a 21-inch deck.

  • Blade length: 21 inches
  • 3-in-1 design for mulch, bag, or discharge
  • Fits 21-inch deck walk-behind mowers
  • Compatible with Craftsman and Troy-Bilt
  • Replaces OEM part #742-05643
  • Rounded rectangle hole pattern

The Details Specifications

Brand Genuine Factory Parts
Model / MPN CMXGZAM100142
UPC 889021359706
Weight 2 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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