Caltric 2 Set Lawn Mower 42" Blade Compatible with Husqvarna Yth18542 Yth20B42T Yth20F42T

What It Is

This Caltric 2-piece 42-inch blade set is a direct-replacement aftermarket option for Husqvarna lawn tractors, designed for mulching and bagging on residential-sized properties.

Fitment & Compatibility

• Deck size: Confirmed for 42-inch cutting decks only (not 46-inch or 54-inch). Measure your deck width before ordering.
• Model fit: Compatible with Husqvarna YTH18542, YTH20B42T, and YTH20F42T. Also fits many other Husqvarna 42-inch deck tractors (check OEM part numbers 532429566, 532429567, or 532416227).
• Measurements: Each blade is approximately 21 inches long, 2-1/2 inches wide, with a center hole diameter of 1 inch and a 5-point star drive pattern. Verify your blade’s length, hole size, and drive pattern match.
• OEM vs aftermarket: These are not genuine Husqvarna blades but are marketed as direct replacements. If your tractor has a different blade pattern (e.g., oval hole), this set won’t fit.

Key Things to Know

• Quality: Caltric blades are made from heat-treated steel but are thinner than OEM Husqvarna blades (about 0.15 inch vs 0.1875 inch). They may wear faster but still cut well for light-to-medium use.
• Installation: Moderate—requires removing the deck or tilting the tractor, plus a torque wrench (30-40 ft-lbs recommended). Always sharpen new blades before first use; they come dull.
• Common gotchas: The star drive pattern can be tight on some spindles—lightly file if needed. Do not reuse old hardware; buy new washers and bolts if yours are worn.
• Balance: These blades often ship slightly unbalanced. Check balance on a blade balancer or screwdriver; grind the heavy end to avoid vibration.

Should You Buy It

Yes, if you have a compatible 42-inch Husqvarna tractor, want a budget-friendly blade set for regular mowing, and don’t need heavy-duty durability for tough or commercial use. For occasional homeowners who sharpen or replace blades annually, this is a solid value. Avoid if you need thicker OEM-grade blades for rough terrain or high-hour cutting.