Stens 330-872 Blade, Pack of 2

What It Is

The Stens 330-872 Blade, Pack of 2, is a replacement mulching blade designed for select 42-inch lawn mower decks. It’s intended for residential or light commercial use, cutting grass with a curved design that recirculates clippings for finer mulching.

Fitment & Compatibility

Before buying, confirm these three things:

• Deck size: This blade fits 42-inch cutting decks only. Measure your deck width to be sure.
• Model/brand fit: Common compatible models include Craftsman, Husqvarna, Poulan Pro, and certain MTD/Garden Way units. Check your mower’s model number against Stens’ compatibility list (e.g., for Craftsman 917 series or Husqvarna YTH22V46). Not all 42-inch decks use this blade.
• OEM vs aftermarket: Stens is a premium aftermarket brand. Cross-reference the OEM part number (e.g., 532-4146-00, 4146X, or 4146) to verify fit. Measure the blade length (21 inches center-to-center), width (2.75 inches), and center hole diameter (1 inch) to match your original.

Key Things to Buy

• Quality: Stens blades are heat-treated and hardened for durability, though not as thick as some OEM heavy-duty options. They resist bending but may dull faster on sandy soil.
• Installation difficulty: Easy for DIYers with basic tools. Torque the center bolt to 70-90 ft-lbs (check your manual). Use a blade balancer after installation—unbalanced blades cause vibration.
• Common gotchas: The mulching design may clog in wet, tall grass. Also, verify the blade’s “wing” orientation—the curved tips must face upward toward the deck when installed.
• Pack size: You get two blades, so replace both at once for even cutting. Don’t mix with other blade types (e.g., standard lift) on the same spindle.

Should You Buy It

If you own a compatible 42-inch deck mower (Craftsman, Husqvarna, etc.) and want a reliable, affordable mulching blade for regular residential use, this is a solid choice. Avoid it if you need a high-lift blade for bagging or a heavy-duty option for commercial abuse.