One New Aftermarket 22" Lawn Mower Blade for AYP Fits Craftsman Replaces 420463 421825

What It Is

This is an aftermarket 22-inch replacement blade for AYP (American Yard Products) mowers, designed to fit select Craftsman models. It’s a standard lift blade for mulching or bagging grass on residential walk-behind mowers with a 22-inch cutting deck.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: Your mower must have a 22-inch cutting deck. Measure the blade length (tip to tip) or check your owner’s manual. A 22-inch blade will not fit a 21-inch or 20-inch deck.
• Model/part numbers: This blade replaces OEM part numbers 420463 and 421825. It fits AYP/Craftsman mowers (e.g., 917 series, many Briggs & Stratton or Tecumseh engine models). Double-check your mower’s model number against the seller’s fitment list.
• Center hole & drive type: This blade has a standard 5-point star center hole (also called a “universal” or “AVS” pattern). It won’t fit mowers with a round, oval, or keyhole center hole. Measure your old blade’s center hole diameter (usually 1 inch) and pattern.

If your old blade is stamped 420463 or 421825, this is a direct swap. If not, measure length, hole pattern, and thickness (typically 0.125–0.150 inches) to confirm.

Key Things to Know

• Quality: Aftermarket blade—good for budget replacement, but may not hold an edge as long as OEM. Expect comparable cutting performance for typical residential use.
• Installation: Easy DIY job. Remove spark plug wire, lift mower, remove center bolt (usually 5/8-inch or 15/16-inch socket), swap blade, torque bolt to 40–50 ft-lbs. Wear gloves.
• Balance: New blades are often unbalanced out of the box. Use a blade balancer or check by hanging on a nail. A small file or drill bit can remove material from the heavy side.
• Gotcha: This blade is 22 inches, but some Craftsman decks labeled “22-inch” use a 21.5-inch blade. Always measure your old blade end to end. Also, check blade thickness—some decks require a thicker blade (0.150 inches) for safety.

Should You Buy It

If you need a quick, affordable replacement for a 22-inch AYP/Craftsman mower with a 5-point star hole and don’t mind balancing it yourself, this blade is a solid choice. It’s not for commercial use or high-end finish cuts, but for standard residential mowing, it’s a cost-effective fix. Avoid if your mower uses a different center hole or a non-standard blade length.