532139775 139775 Mower Blades Replacement for Husqvarna Poulan Craftsman 42" Deck, 21-1/16" L x 2-1/4" W, 5 Point Star Center Hole Compatible with LTH1742A YTH22V42, 138498 532138971 422719 (2 Pack)

What It Is

This is a 2-pack of replacement mower blades designed for 42-inch cutting decks, primarily used on Husqvarna, Poulan, and Craftsman lawn tractors. Each blade measures 21-1/16 inches long by 2-1/4 inches wide with a 5-point star center hole, making it a direct fit for many popular riding mower models.

Fitment & Compatibility

Before buying, verify three things:

1. Deck size: Your mower must have a 42-inch cutting deck. Measure the deck width if unsure—this blade is not for 38-inch or 46-inch decks.

2. Center hole: The 5-point star hole is critical. It fits Husqvarna/Poulan/Craftsman spindles that use this pattern. Do not assume it fits round hole or diamond hole spindles.

3. Model compatibility: Confirmed fit for LTH1742A, YTH22V42, and many others. This replaces OEM numbers 138498, 532138971, and 422719. Cross-check your mower’s model number with the seller’s compatibility list—generic listings often miss some models.

Key Things to Know

• Quality: Aftermarket blades, not OEM. They’re sharp and balanced out of the box, but may not last as long as factory blades on heavy-duty use (thick grass, rocky terrain).
• Installation: Easy if you have a socket wrench and jack stands. Lift the mower, remove the old blade bolt (left-hand thread on some models—check yours), and torque the new bolt to 40-50 ft-lbs.
• Common gotcha: The 5-point star hole is directional. Ensure the blade’s lift wings face upward toward the deck when installed. Installing upside down will ruin cut quality.
• Sharpening: These can be sharpened once or twice, but the hardened steel wears faster than premium blades. Replace when nicked or dull.

Should You Buy It

If you need a budget-friendly, drop-in replacement for a standard 42-inch Husqvarna/Poulan/Craftsman tractor and don’t mow heavy commercial loads, this 2-pack is a solid value at $21.99. It’s not for high-end durability or specialty decks, but for typical residential lawns, it gets the job done with no fuss.