Product Description
Sold as a set of 2 aftermarket replacement blades for MTD / Cub Cadet / Troy-Bilt-family 21″ walk-behind mower applications using blade family 490-100-M084 / 742-0741 / 942-0741. Each blade measures 21″ in length and 2-1/4″ in width. The source file also provides 5/16″ outside-hole diameter and 2-1/2″ outside-hole center-to-center spacing. Same-family verification completed earlier on matching 742-0741 / 942-0741 products supports this blade family as using a bow-tie center hole. Many 21″ applications in this family use 1 blade per mower, so this 2-piece listing should be understood as a bulk pack unless your machine specifically uses a twin-blade setup.
Specifications
| Attribute | Value |
|---|---|
| Quantity | 2 Blades / Set |
| Length | 21″ |
| Width | 2-1/4″ |
| Center Hole | Bow-Tie |
| Outside Hole Diameter | 5/16″ |
| Outside Hole Center-to-Center | 2-1/2″ |
| Deck Family | 21″ |
Replaces (OEM & Aftermarket Cross-Reference)
| Attribute | Value |
|---|---|
| Craftsman | SPM209370365 |
| Cub Cadet | 490-100-C089, 490-100-M084, 742-04276, 742-04276S, 742-0741, 742-0741A, 942-04276, 942-0741, 942-0741A, CC-742-0741, CC-742-3032 |
| MTD | 01002810, 1002810, 490-100-M084, 742-04276, 742-04276S, 742-0741, 742-0741A, 742-741, 942-0741, 942-0741A |
| Troy-Bilt | 490-100-M084, 742-0741, 742-0741A, 490-100-M067 |
Installation Tips
Confirm your mower’s required blade quantity before ordering. Confirm the center-hole and outer-hole pattern match your original blade before installation. Always disconnect the spark plug wire before removing or installing blades. Replace bent, cracked, or badly worn blades immediately.
