
GICOOL
GICOOL 406712 Mulching Blade with 5/8'' Circle Mounting Pattern for 21'' Deck
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Highlights
- 21 INCH MOWER BLADE REPLACEMENT OEM: AYP/Husqvarna/Poulan 165833, 175064, 189028, 406712, 176135, 159267, 175052, 406706, 532165833, 532175064, 532176135, 532189028, 532159267, 532175052, 532406712, 532406706
- COMPATIBLE WITH SELECT 21 INCH DECK MOWER: Designed for select 21" Craftsman and Husqvarna walk-behind mowers with a 5/8" round center hole. Please confirm your mower model and center hole shape before ordering—this blade is NOT for star-shaped or other mounting patterns.
- 532165833 MOWER BLADE SPECIFICATIONS: Length: 21"(533mm), Width: 2-3/16"(55mm), Thickness: 1/8"(3mm), Air lift: 1 "(25mm), Center Hole Shape: Circle, Center Hole Diameter: 5/8"(16mm), Blade Type: Mulching Blade
- 3-IN-1 MOWER BLADE: Supports mulching, bagging, and side-discharging modes.The advanced multi-curve design finely chops grass clippings into nutrient-rich mulch, promoting a healthier lawn. Meanwhile, the integrated high-lift wing optimizes airflow to significantly improve bagging efficiency for a cleaner cut and easier collection
- PRECISION CUTTING PERFORMANCE: Our blades are meticulously crafted from 40MnB steel and rigorously tested to ensure consistent, precise cutting. Designed for effortless operation, they deliver a smoother, more efficient mowing experience. The cutting edge features a rust-resistant coating that protects hands during installation; this coating wears off naturally during use
Why You'll Love It
- Supports mulching, bagging, and side discharge on compatible 21-inch walk-behind mowers
- Multi-curve profile finely chops clippings to help nourish your turf naturally
- Integrated high-lift wing improves airflow to direct grass into collection bags efficiently
- Constructed from 40MnB steel to provide steady and dependable cutting performance
- Coated edge helps protect your hands during installation and wears away naturally during use
Pros
- +3-in-1 mulching, bagging, and discharge support
- +Durable 40MnB steel construction
- +Protective edge coating for safer installation
- +Integrated high-lift wing for airflow
Cons
- -Only fits 5/8-inch round center mounts
- -Not compatible with star-shaped mounting holes
Detailed Review
The GICOOL 406712 Mulching Blade is a direct replacement part designed for owners of select 21-inch walk-behind mowers from brands like Craftsman, Husqvarna, AYP, and Poulan. If your original cutting edge is dull or damaged, this blade restores clean slicing and proper clipping management under your deck.
Built from 40MnB steel, the blade features a 3-in-1 design that works across mulching, bagging, and side-discharging setups. Its multi-curve shape is engineered to finely chop grass clippings into tiny pieces, while an integrated 1-inch air lift wing improves circulation to push clippings efficiently into a collection bag.
For handling, the cutting edge comes with a rust-resistant protective coating designed to safeguard your hands during the installation process. This surface layer is intended to wear off naturally as soon as you put the mower to work on your lawn.
Compatibility is the main consideration when choosing this model. It measures 21 inches long, 2-3/16 inches wide, and 1/8 inch thick, and requires a 5/8-inch circular center hole. It will not mount onto mowers that require star-shaped or alternative hub patterns.
Verdict: This blade is a practical replacement for anyone needing a 3-in-1 blade for a compatible 21-inch mower deck. As long as your machine uses a standard 5/8-inch round mount, it offers a straightforward way to maintain your lawn with mulching, bagging, or side discharge.
Specifications
- Blade Length: 21 inches (533 mm)
- Blade Width: 2-3/16 inches (55 mm)
- Thickness: 1/8 inch (3 mm)
- Air Lift: 1 inch (25 mm)
- Center Hole Diameter: 5/8 inch (16 mm)
- Center Hole Shape: Round circle
- Material: 40MnB steel
- Blade Type: 3-in-1 mulching blade
Who Should Buy It
A great fit if you:
- Own a 21-inch Craftsman, Husqvarna, AYP, or Poulan mower with a 5/8-inch round mount.
- Want a single blade capable of mulching, bagging, and side-discharging.
- Need to replace worn OEM part numbers like 532406712, 532165833, or 175064.
Consider something else if you:
- Have a mower deck that uses a star-shaped or non-circular center mounting hole.
- Operate a mower with a deck size other than 21 inches.
FAQ
What mower brands and OEM part numbers does this blade replace?
It replaces AYP, Husqvarna, and Poulan part numbers including 165833, 175064, 189028, 406712, 176135, 159267, 175052, 406706, and their 532-prefixed equivalents on select 21-inch walk-behind models.
Will this blade fit a mower with a star-shaped mounting shaft?
No. This blade is designed strictly for decks with a 5/8-inch round center hole and is not compatible with star-shaped or other mounting patterns.
Do I need to remove the black coating before installing the blade?
No. The rust-resistant coating is designed to protect your hands during installation and will wear off naturally once you begin mowing.
Product Details
| Brand | GICOOL |
| ASIN | B0G2KSDYSV |






