8TEN LawnRAZOR Blade Set for Craftsman Poulan AYP Husqvarna 42 inch Deck 138498 134149 532138971 (Notched High Lift)

What It Is

This is a set of three notched high-lift blades designed for 42-inch cutting decks on Craftsman, Poulan, AYP, and Husqvarna lawn tractors. The high-lift design increases airflow for better mulching and bagging performance in thick or damp grass.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Must be exactly 42 inches (measured blade tip to tip).
• OEM part numbers: Replaces 138498, 134149, and 532138971. Common on Craftsman, Poulan, AYP, and Husqvarna tractors with 42" stamped decks.
• Measurements: Each blade is 20.5 inches long, 2.25 inches wide, with a 5-point star center hole and 0.5-inch diameter. Not compatible with 46" or 54" decks, or blades with a round or oval center hole.

Check your current blade’s part number or measure your deck width (blade tip to blade tip) to verify fit. If you have an older or non-standard spindle, measure the center hole shape and diameter.

Key Things to Know

• Installation: Easy bolt-on job with a socket wrench and blade removal tool. Torque bolts to 70-90 ft-lbs. Use anti-seize on threads if you mow wet grass frequently.
• Performance: The notched high-lift design improves suction but may throw more debris than standard blades. Not ideal for fine mulching on dry, short grass.
• Durability: Heat-treated steel with a painted finish. Expect 1-2 seasons of normal use before sharpening or replacement. Cheaper than OEM but slightly thinner—avoid hitting rocks or stumps.
• Balance: Each set is pre-balanced, but check with a blade balancer after installation to avoid vibration.

Should You Buy It

Buy this set if you have a 42-inch Craftsman, Poulan, AYP, or Husqvarna tractor and want better bagging or cutting in heavy grass without paying OEM prices. Skip it if you need a low-lift or mulching-only blade for fine, dry lawns, or if your deck uses a different center hole shape.