138971 Mower Blades for Craftsman LT1000 LT2000 T110 YT3000 42'' Deck Cut Zero Turn Riding for Husqvarna YTH22V42 YTH18542 YTA18542 YTH1542XP Poulan 138498 532127843 Mdeium Blade 2 Pack

What It Is

This is a 2-pack of medium-grade replacement mower blades designed for 42-inch cutting decks on select Craftsman, Husqvarna, and Poulan lawn tractors and zero-turn mowers. They are a direct aftermarket substitute for OEM part numbers 138971, 138498, and 532127843.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch deck (measure blade tip to tip, not deck shell). These blades fit Craftsman LT1000, LT2000, T110, and YT3000 series, plus Husqvarna YTH22V42, YTH18542, YTA18542, and YTH1542XP, and some Poulan models. They also work on many zero-turn mowers with a 42-inch cut. Check your current blade length: these are approximately 20.5 inches long with a center hole diameter of 5/8-inch and a 0.25-inch thickness. Always verify your OEM part number—if it’s 138971, 138498, or 532127843, these are a match. Do not assume fitment based on brand alone; deck size and spindle mounting must match.

Key Things to Know

• Quality vs. OEM: As a medium-grade aftermarket blade, these are adequate for standard residential cutting but may dull faster on thick, wet, or sandy grass compared to OEM or high-carbon steel blades.
• Installation: Moderate difficulty—requires a socket wrench and possibly a blade removal tool. Always disconnect the spark plug and block the blade before loosening. Torque the center bolt to 40-50 ft-lbs.
• Common Gotcha: These blades are not universal; they are specifically for 42-inch decks with a 5/8-inch center hole. Do not use on 46-inch or 54-inch decks, or on decks with a different center hole size.
• Sharpening: You can sharpen these 1-2 times before replacement is needed, but the edges are not hardened for extended reuse.

Should You Buy It

Buy these if you own a Craftsman, Husqvarna, or Poulan with a 42-inch deck and need a budget-friendly, drop-in replacement for standard residential mowing. They are a solid value for the price, but if you mow tough or sandy conditions, consider spending more on a premium or OEM blade for longer edge life.