532138971 High Lift 42 Inch Mower Blades, Compatible with Husqvarna Poulan Lawn Tractor, Replaces 127843 531307224, 2 Pack

What It Is

This is a set of two high-lift 42-inch mower blades designed for Husqvarna and Poulan lawn tractors. They create stronger upward airflow to lift grass for a cleaner cut, making them ideal for bagging or cutting in tall, thick grass.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Your mower deck must be exactly 42 inches (cutting width). Measure if unsure.
• Model/brand: Compatible with many Husqvarna, Poulan, and some Craftsman/MTD tractors. Directly replaces OEM part numbers 532138971, 127843, and 531307224.
• Measurements: Each blade is 21 inches long, with a 5-point star center hole (1 inch diameter) and a 0.25-inch thickness. Check your current blade’s length and center hole shape—if it’s a different pattern (e.g., oval or diamond), these won’t fit.

Key Things to Know

• High-lift design: Increases airflow and bagging performance, but may cause more wear on the engine and deck if used in dry, dusty conditions.
• Installation: Moderate difficulty—requires a socket wrench and blade removal tool. Always disconnect the spark plug first to prevent accidental starts.
• Balance check: After installing, spin the blade to ensure it’s balanced. An unbalanced blade causes vibration, poor cut quality, and can damage the spindle.
• Common gotcha: These blades are not universal—do not assume they fit all 42-inch decks. Always cross-reference your model number with the compatibility list.

Should You Buy It

If you have a Husqvarna, Poulan, or compatible 42-inch lawn tractor and frequently bag clippings or cut overgrown grass, these high-lift blades are a solid, affordable upgrade. They’re well-reviewed for durability and cut quality, but stick with standard lift blades if you mostly mulch or side-discharge.