MTD 759-3825 16.5" Blades 3-Pack 48" Decks

What It Is

The MTD 759-3825 is a 3-pack of 16.5-inch replacement blades designed for 48-inch cutting decks on select MTD, Cub Cadet, Troy-Bilt, and Craftsman lawn tractors. These blades are for mulching, bagging, or side-discharge use, ideal for medium to large residential lawns.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Only fits 48-inch decks (not 42" or 54"). Measure your deck width from blade tip to blade tip.
• Blade length: Must be exactly 16.5 inches (center hole to tip). Measure your old blade.
• Model fit: Works with MTD, Cub Cadet, Troy-Bilt, and Craftsman tractors using OEM part numbers 759-3825, 742-0508, 742-0592, or 942-0592. Check your owner’s manual or current blade part number.

These are OEM MTD blades, not universal aftermarket. They won’t fit most John Deere, Husqvarna, or Ariens decks.

Key Things to Know

• Quality: Heat-treated steel with a hardened edge. Sharper out of the box than many aftermarket options, but dull faster on sandy soil.
• Installation: Easy bolt-on with a standard 5/8-inch socket. Torque to 50-70 ft-lbs. Use a blade balancer after install—these can be slightly off-center.
• Common gotcha: These blades are for 3-blade 48" decks only. Some 48" decks use 2 blades (check your deck). Also, the center hole is 1-inch diameter—fits most MTD spindles, but verify if your spindle uses a different size.
• Pack value: 3-pack at ~$47 is cheaper per blade than buying singles. Replace all three at once for even cutting.

Should You Buy It

Buy this if you own an MTD-family 48-inch deck tractor (Cub Cadet, Troy-Bilt, Craftsman) and want reliable OEM-spec blades that fit without modification. It’s a solid value for the pack, but skip it if you need universal blades for other brands or have a 2-blade 48" deck.