Lawn Mower Blade Balancer High Precision Magnetic Wall Mount Mower Blade Balancer for All Lawn Mower Blades Compatible with Stihl/Troy/Husqvarna Lawnmower Blades Replace 339075B 42-047

What It Is

This is a magnetic wall-mount blade balancer for lawn mower blades, designed to let you quickly check and correct blade balance after sharpening. It’s for use with any standard mower blade (walk-behind, zero-turn, or riding) that has a center hole, and is sold as a universal replacement for OEM balancers like Husqvarna 339075B and 42-047.

Fitment & Compatibility

• Blade type: Works with all standard mower blades that have a center hole (round or star-shaped). Not for blades with offset or non-centric holes.
• Deck size: No deck size restrictions—fits blades from 18-inch push mowers up to 72-inch zero-turn decks.
• Brand/model: Claimed compatible with Stihl, Troy-Bilt, Husqvarna, and most other brands, but verify your blade’s center hole diameter (typically 5/8" to 1") clears the magnetic post.
• OEM vs aftermarket: Designed as a universal replacement; will not match OEM balancer mounting holes if you’re trying to reuse existing wall anchors.
• What to measure before buying: Measure your blade’s center hole diameter and ensure the balancer’s magnetic post is at least 1/4" smaller to allow free rotation.

Key Things to Know

• Quality: Magnetic hold is strong enough for most blades up to ~18" long and 0.25" thick. Heavier or thicker blades may slip off the magnet during rotation.
• Installation: Simple—mount to a wall stud or drywall anchor with included screws. No tools beyond a drill and screwdriver.
• Gotcha: The magnetic base can attract metal debris (nuts, washers, blade shavings) in your workshop, so keep the area clean for accurate readings.
• Accuracy: Works well for quick balancing, but for precision (e.g., high-speed zero-turn blades), a cone-style balancer is more reliable.

Should You Buy It

If you sharpen your own blades regularly and want a cheap, space-saving way to check balance, this is a solid choice. It’s not for heavy-duty commercial use or extra-long blades, but for home mechanics with standard walk-behind or residential riding mowers, it’s a practical upgrade from balancing on a nail or screwdriver.