8TEN LawnRAZOR Mower Blade for Poulan 20 inch Deck AYP Craftsman Husqvarna 850972 145106 532850972 532145106 (Low-Lift)

What It Is

The 8TEN LawnRAZOR is a low-lift replacement blade for 20-inch deck walk-behind mowers, designed for standard mulching and bagging on residential lawns with light-to-moderate grass.

Fitment & Compatibility

Before buying, confirm your mower has a 20-inch cutting deck. This blade directly replaces OEM part numbers 850972, 145106, 532850972, and 532145106 used on Poulan, AYP, Craftsman, and Husqvarna 20-inch models. Measure the blade’s length (20 inches), center hole diameter (usually 1 inch), and drive pin hole spacing (often 3 inches center-to-center) to verify. Check your mower’s manual or existing blade for these exact numbers—aftermarket blades may vary in thickness or balance compared to OEM.

Key Things to Know

• Low-lift design reduces engine strain and clumping in dry grass but is less effective in thick, wet, or tall grass than high-lift blades.
• Installation difficulty: Easy—use a socket wrench and blade removal tool (or block the blade). Torque to 35–50 ft-lbs; overtightening can strip the adapter.
• Balance check: Aftermarket blades sometimes need balancing. Use a blade balancer or a nail on the wall to ensure even spin—an unbalanced blade causes vibration and deck damage.
• Sharpness: Comes sharp enough for immediate use, but dulling may occur faster than OEM blades in sandy or rocky soil.

Should You Buy It

Yes, if you need a budget-friendly, low-lift replacement for a 20-inch Poulan, Craftsman, or Husqvarna mower and primarily cut dry, thin grass. Skip it for heavy-duty mulching or thick, wet lawns—consider a high-lift or gator blade instead.