Stens 336-760 Lawn Mower Mulching Blade Compatible with/Replacement for Murray Most 20" Walk behinds, 1996 and Newer

What It Is

The Stens 336-760 is a 20-inch mulching blade designed to replace the factory blade on Murray walk-behind mowers built from 1996 onward. It chops clippings finely for nutrient recycling, ideal for frequent mowing where bagging isn’t needed.

Fitment & Compatibility

Before buying, verify three things:

• Deck size – Your mower deck must be exactly 20 inches. Measure your existing blade length (tip to tip) to confirm.
• Center hole – This blade uses a 7/8-inch diameter center hole (standard for most Murray 20” models). Check yours with a ruler.
• Model/year – Works with Murray 20” walk-behinds from 1996 and newer. Check your mower’s model number (stamped under seat or on deck) against Stens’ online cross-reference. It replaces OEM part numbers 335528, 335327, and 335584.
• Aftermarket fit – Not for Craftsman, Troy-Bilt, or other brands unless they share Murray’s deck design. Confirm your mower brand is Murray.

Key Things to Know

• Quality – Stens is a reputable aftermarket brand; this blade is heat-treated and balanced, comparable to OEM.
• Installation – Easy with a socket wrench. Use a blade removal tool or block the blade to prevent spinning. Torque the center bolt to 35-45 ft-lbs.
• Common gotcha – The mulching design has a higher lift than standard blades; it may bog the engine in tall, wet grass. Keep mowing height at 2.5–3 inches for best results.
• Sharpness – Blade comes unsharpened (common for aftermarket). You’ll need to sharpen it before first use unless you prefer a dull cut.

Should You Buy It

If you own a 20-inch Murray walk-behind (1996+) and want a reliable, affordable mulching blade that keeps clippings out of sight, this is a solid choice. It’s not for bagging or side-discharge setups—stick to a standard blade for those. Skip it if you need a sharp blade out of the box or mow infrequently through tall growth.