MaxPower 331737B Mulching Blade for 21 in. Cut Craftsman, Husqvarna & Poulan Mowers – Replaces OEM 532159267, 532165833, 532175064 and More

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21 in. Mulching Mower Blade (Craftsman/Husqvarna/Poulan)

A durable replacement mulching blade for many 21-inch Craftsman, Husqvarna, and Poulan mowers. Built to meet or exceed OEM specifications with a 5/8 in. center hole for reliable fit and performance.


Key Features:

  • Wide Compatibility: Fits many 21 in. Craftsman, Husqvarna, and Poulan models; also replaces Craftsman CMXGZAM100129
  • OEM Replacement: Replaces multiple OEM part numbers including 165833, 175064, 189028, 532406712, 176135, 159267 and more
  • Performance Mulching: Designed to deliver finely cut clippings for a cleaner lawn and reduced bagging
  • Precision Dimensions: Measures 21 in. length by 2-1/4 in. width with 5/8 in. center hole and 3/8 in. outside holes
  • Built to Last: Manufactured in the USA to meet or exceed OEM specifications

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Blade Length 21 in.
Blade Width 2-1/4 in.
Center Hole Diameter 5/8 in.
Outside Hole Diameter 3/8 in.
Center-to-Center Outside Hole Spacing 1-7/8 in.
Fits Deck Size 21 inches
Fits Brands Craftsman, Husqvarna, Poulan Pro
Fits Models 21 in. cut Poulan, Husqvarna, Craftsman
Used With Equipment Type Mower
OEM Replacement Numbers 165833, 175064, 189028, 532406712, 176135, 159267, 532406706, 406712X431, 531300765, 532159267, 532165833, 532175064, 532176135, 532189028, 539111878, 594893001, PP23020; also fits Craftsman CMXGZAM100129
Product Depth 25.2 in
Product Height 1.75 in
Product Width 2.25 in
Hole Pattern Round + (center with two outside holes)

Frequently Asked Questions (FAQ):

Q: Will this blade fit my mower?
A: Check your owner's manual and confirm the OEM part number matches one of the listed replacements (e.g., 532175064, 532165833, 532159267).


Q: What are the blade dimensions?
A: Length 21 in., width 2-1/4 in., center hole 5/8 in.; outside holes 3/8 in. with 1-7/8 in. center-to-center spacing.


Q: Is hardware included?
A: This listing includes one mulching blade; mounting hardware is typically reused from your mower.


Q: How does a mulching blade help?
A: Mulching blades recirculate and finely cut grass clippings, improving lawn health and reducing the need for bagging.


Q: Where is it made?
A: Made in the USA.


A Clean, Crisp Finish for Your Lawn

This streamlined mulching blade brings a tailored precision to outdoor spaces, turning cut grass into a fine, nourishing carpet. The sculpted profile and exacting dimensions speak to performance-focused design. Pair it with a well-kept mower and defined edging to give your yard that polished, resort-worthy look. It’s a small upgrade that makes luxe lawn care feel effortless.


Upgrade your mower with this USA‑made mulching blade for cleaner cuts and effortless lawn care—confirm your OEM number and add to cart now.

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