UDC Parts 532138971 Mower Blades Replacement for Craftsman 42 Inch LT2000 LT1000 YT3000 DYT4000 DLT3000 YT4000 138971 Husqvarna YTH22V42 YTH18542 YTA18542 YTH1542XP 532127843 138498 / High Lift 2 Pack

What It Is

This is a 2-pack of high-lift replacement blades for 42-inch Craftsman and Husqvarna lawn tractors. Designed for mulching and bagging, the raised wing profile increases airflow to lift grass clippings into the bag or disperse them for finer mulching.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Your mower must have a 42-inch cutting deck. Measure deck width if unsure.
• Model number: Compatible with Craftsman LT2000, LT1000, YT3000, DYT4000, DLT3000, YT4000 series, and Husqvarna YTH22V42, YTH18542, YTA18542, YTH1542XP. Check your mower’s model tag (often under the seat or on the deck).
• OEM cross-references: Replaces Craftsman 532138971, 532127843, 138498, and Husqvarna 532138971. These are aftermarket blades, not OEM Craftsman/Husqvarna, but match the original dimensions (length, center hole, offset).

Measure your old blade’s length (center hole to tip) and center hole diameter (typically 1-inch). These blades are 20.5 inches long with a 1-inch center hole.

Key Things to Know

• High-lift design: Better for bagging and dry grass; can struggle in thick, wet grass (may clog or leave clumps). Not ideal for side-discharge only.
• Installation difficulty: Easy—requires a socket wrench and a block of wood to prevent blade spin. Torque bolts to 40–50 ft-lbs.
• Balance: These are pre-balanced, but always check balance after sharpening. An unbalanced blade vibrates and damages the spindle.
• Durability: Made from heat-treated steel; hold an edge reasonably well for the price, but may dull faster than premium OEM blades in sandy or rocky soil.

Should You Buy It

If you own a 42-inch Craftsman or Husqvarna tractor and primarily bag or mulch, this is a solid, budget-friendly replacement. It’s not for heavy-duty commercial use or wet-clog conditions, but for residential lawns, the value is excellent—verified by 4,300+ reviews.