Maxpower 561739XB Commercial Mulching 2-Blade Set for Many 46 in. Craftsman, Husqvarna, Poulan Mowers, Replaces OEM #'s 403107, 532403107 Black

What It Is

The Maxpower 561739XB is an aftermarket mulching blade set designed for 46-inch cutting decks on many Craftsman, Husqvarna, and Poulan lawn tractors. It replaces OEM part numbers 403107 and 532403107, and is intended for mowers that use a 2-blade mulching configuration.

Fitment & Compatibility

Before buying, verify three things: your deck is exactly 46 inches (center spindle to center spindle), your mower uses a 2-blade system (not 3-blade), and your current OEM blade part number matches 403107 or 532403107. This set fits many Craftsman, Husqvarna, Poulan, and some AYP/Electrolux models from the 2000s onward. Each blade measures 20.5 inches long with a 1-inch center hole and a 0.25-inch thickness. Check your owner’s manual or existing blade for length and hole size—if yours differs, this set won’t fit.

Key Things to Know

• Quality vs OEM: These are heat-treated steel and hold an edge well, but may not last as long as OEM blades in heavy-use or rocky conditions.
• Installation: Straightforward swap using a socket wrench and blade removal tool (or block of wood). Torque bolts to 70-90 ft-lbs; use new lock washers if possible.
• Mulching performance: Designed to chop clippings finer than standard blades, but require a properly installed mulch plug or kit to work effectively.
• Balance check: Always balance the blades after installation to avoid vibration and spindle damage—a $10 balancer saves headaches.

Should You Buy It

If you need a reliable, budget-friendly mulching blade set for a 46-inch Craftsman, Husqvarna, or Poulan tractor, and you’re comfortable with basic mechanical work, this is a solid choice. It’s not for commercial-grade durability or odd-sized decks, but for typical residential mulching, it delivers good cut quality and saves money over OEM replacements.