Stens 20" Mulching Lawnmower Blade 340-218 Replacement for 20" Walk-Behind Mowers — Black, 5/8" Arbor, Mulching Cut

Stens 20" mulching replacement blade (model 340-218) is a direct-fit spare blade engineered to restore cutting performance on many 20" AYP, Craftsman, Husqvarna and Poulan walk‑behind mowers.

This Stens replacement blade is built to match common OEM mounting patterns and dimensions so you can swap it in quickly and get back to mowing. Machined holes, a standard 5/8" center arbor, and the 3/8" outer mounting hole pattern make it compatible with a wide range of 20" decks. It’s sold with branded packaging and intended as a mulching-style blade to help finely chop grass clippings while maintaining deck clearance and balance.

How does this blade fit my mower?

The Stens 340-218 is made to fit 20" walk‑behind decks that use a 5/8" center arbor and 3/8" outer hole. It replaces a variety of OEM part numbers from AYP, Husqvarna, and Poulan so fitment is straightforward when your mower lists those same numbers. Always verify your mower’s OEM number and blade dimensions before ordering.

• Center hole: 5/8" (standard arbor)
• Outer hole diameter: 3/8"
• Length: 20", Width: 2", Thickness: 0.134"
• Replaces OEMs like 204340218, 532114884, 532340218, 752233

What kind of cut and performance should I expect?

This is a mulching blade designed to reduce clump buildup by cutting grass into finer pieces that fall back into the turf. It has the profile and cutting edge geometry typical of mulching blades, balancing a clean cut with airflow that helps retain clippings in the deck for additional chopping. It’s not an adjustable or specialty high-lift blade; it’s optimized for everyday mulching tasks on compatible 20" mowers.

• Mulching geometry for finer clippings
• Balanced thickness (0.134") for durability and reduced vibration
• Designed to maintain deck clearance and airflow for mulching

Is this a direct replacement for my OEM part numbers?

Yes — the Stens 340-218 is manufactured to replace many OEM numbers across AYP, Poulan and Husqvarna product lines. The listing includes the most commonly superseded part numbers, but matching the center and outer hole dimensions and blade length is the simplest way to ensure compatibility. If your mower’s part number appears on the replacement list, this blade is intended to be interchangeable.

• Listed OEM replacements: 917532752233, 752233, 531307212, 340218
• Also replaces Poulan/Husqvarna numbers like 532114884 and 532340218
• Fits 20" walk‑behind models from AYP, Craftsman, Husqvarna, Poulan

How should I install and maintain the blade?

Installation follows standard mower blade replacement steps: disconnect spark plug, tip mower to access blade, remove mounting hardware, fit the replacement blade with correct orientation, and torque to manufacturer spec. Periodically check blade tightness and sharpen or replace when edges are rounded or damage is present to keep cut quality high and prevent undue strain on the mower.

• Disconnect spark plug before working under the deck
• Observe correct blade orientation for mulching profile
• Check torque and inspect for wear every few mowing seasons

Who this product is for: the Stens 340-218 is aimed at homeowners and lawn-care pros who need an affordable, OEM-compatible mulching blade for 20" walk‑behind mowers from AYP, Craftsman, Husqvarna or Poulan. It’s suitable if you want to restore factory-style cutting performance without changing mower mounting hardware, or if you need a replacement blade that matches common OEM part numbers and standard arbor sizing.