Stens 340-137 Mulching Blade, AYP 532406713, ea, 1

What It Is

The Stens 340-137 is a replacement mulching blade designed for AYP (American Yard Products) and Electrolux-branded lawn tractors. It cuts grass into fine clippings that decompose quickly, eliminating the need for bagging.

Fitment & Compatibility

Before buying, check three things:

• Deck size: This blade fits 42-inch and 46-inch cutting decks, but verify your deck’s blade length (see below).
• OEM part number: Direct replacement for AYP/Electrolux OEM #532406713. Also fits many Husqvarna, Craftsman, Poulan, and McCulloch models using that OEM number.
• Measurements: 20.5 inches long, 1-inch wide, 0.203-inch thick, with a 7/8-inch center hole and 1/4-inch offset. Measure your old blade to confirm length and hole size—don’t rely on deck size alone.
• Aftermarket note: Stens is a quality aftermarket brand, not OEM. It will fit, but check for any deck-specific offset differences (e.g., some AYP decks use a flat blade vs. offset).

Key Things to Know

• Quality: Stens blades are heat-treated, hardened steel with a painted finish. They hold an edge well but are not as thick as some OEM blades—fine for residential use.
• Installation: Easy DIY swap with a socket wrench. Always use a blade removal tool or block the blade to prevent rotation. Torque the blade bolt to 70–90 ft-lbs (check your manual).
• Gotcha: This is a mulching blade, not a standard lift blade. It won’t throw clippings into a bagger or side-discharge effectively. If you need bagging, get the standard Stens 340-136 instead.
• Balance: Blades come pre-balanced, but it’s worth checking with a balancer before installation—unbalanced blades vibrate and damage your spindle.

Should You Buy It

Buy this if you own an AYP/Husqvarna/Craftsman lawn tractor with a 42- or 46-inch deck, use it primarily for mulching, and want a reliable, budget-friendly replacement that performs well for regular residential mowing. Skip it if you need a bagging or side-discharge blade, or if you’re restoring a commercial mower that demands OEM specs.