Maxpower 331742S Mower Blade for 42 Inch Cut Poulan/Husqvarna/Troy-Bilt Replaces 139775, 532139775,yellow

What It Is

The Maxpower 331742S is a 42-inch replacement mower blade designed for select Poulan, Husqvarna, and Troy-Bilt riding mowers. It’s a universal-fit, high-lift blade for cutting grass on medium to large lawns.

Fitment & Compatibility

Before buying, check your deck size—this blade fits 42-inch cutting decks only. It replaces OEM part numbers 139775 and 532139775. Confirm your mower brand: compatible with many Poulan, Husqvarna, and Troy-Bilt models (e.g., Poulan PP42T, Husqvarna YTH2242TDR, Troy-Bilt 42XP). Measure your blade length (21 inches center-to-center of mounting holes) and ensure the center hole is 1 inch with a 7-point star pattern. This is an aftermarket blade, not OEM, but matches original specs. Verify your mower’s model number via the deck or manual—some newer models may differ.

Key Things to Know

• Quality: Made of heat-treated steel; holds an edge well for residential use but may dull faster than premium OEM blades on rocky soil.
• Installation: Easy—use a socket wrench, torque to 40-50 ft-lbs, and ensure blade is upside-down (cutting edge toward ground). A common gotcha: the star pattern can strip if overtorqued.
• Gotchas: High-lift design means more power draw—okay for most gas engines, but may bog on thick, wet grass. Not for mulching; use a mulching blade for that.
• Balance: Comes pre-balanced, but check with a balancer after sharpening to avoid vibration.

Should You Buy It

Buy this if you need a budget-friendly replacement for a 42-inch Poulan, Husqvarna, or Troy-Bilt rider and want reliable cutting for typical grass. Skip it if you require OEM precision for heavy commercial use or need a mulching blade. At $20.49 and a 4.3 rating, it’s a solid value for residential mowing.