138971 Mower Blades Fits for Craftsman/Hus qvarna/Pou LAN 42" Lawn Tractor, 138498 High Lift Blades Replace for 532138971, 127843, 134149, 531307224, 2 Pack

What It Is

This is a set of two 42-inch high-lift mower blades designed for Craftsman, Husqvarna, and Poulan lawn tractors with a 42-inch cutting deck. The high-lift design increases airflow for better grass clipping discharge and bagging performance.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 42 inches from blade tip to blade tip. These blades replace OEM part numbers 532138971, 138498, 127843, 134149, and 531307224. They fit most Craftsman, Husqvarna, Poulan, and some AYP/Electrolux-branded 42-inch lawn tractors. Measure your existing blade length, center hole diameter (typically 7/8-inch or 1-inch), and center-to-center distance from hole to hole (usually 3.25 inches). Check that the blade’s center hole and oval drive hole match your spindle. This is an aftermarket replacement, not OEM, so verify your spindle pattern before purchasing.

Key Things to Know

• High-lift vs. standard: These blades produce more lift and better bagging, but they may create more noise and require more engine power. Not ideal for mulching.
• Installation difficulty: Easy to moderate. Requires a socket wrench, torque wrench, and blade removal tool. Torque bolts to 70–90 ft-lbs. Always disconnect the spark plug first.
• Balance check: After installing, check blade balance with a simple balancer. Unbalanced blades cause vibration and premature spindle wear.
• Sharpness: Blades come sharp but will dull faster than OEM if used on sandy or rocky lawns. Sharpen after 10–15 hours of use.

Should You Buy It

This is a solid budget-friendly option for homeowners with a 42-inch Craftsman, Husqvarna, or Poulan tractor who prioritize bagging performance over mulching. If you need OEM fit or have a different deck size, look elsewhere.