8TEN LawnRAZOR Blade for John Deere 314 316 317 318 322 330 332 420 50-Inch Deck M76461 (Medium Lift) 3 Pack

What It Is

The 8TEN LawnRAZOR Blade is a medium-lift replacement blade designed for John Deere 50-inch mower decks used on select 300 and 400 series garden tractors. It’s intended for general residential mowing—good for regular grass height, not ideal for mulching or bagging heavy loads.

Fitment & Compatibility

• Deck size: 50-inch; fits only decks that use OEM part M76461.
• Compatible models: John Deere 314, 316, 317, 318, 322, 330, 332, 420. Verify your deck is 50-inch—some of these tractors also came with 46-inch or 54-inch decks.
• Measurements: Blade length is approximately 20.5 inches, center hole diameter 7/8-inch, with a 0.25-inch thickness. Measure your old blade to confirm.
• Aftermarket vs OEM: This is a non-OEM replacement. It fits the same spindle pattern, but tolerances may differ slightly from factory John Deere blades.

Key Things to Know

• Medium lift trade-off: Better airflow than low-lift for grass collection, but not as aggressive as high-lift for wet or tall grass. Avoid if you need deep mulching.
• Installation: Straightforward bolt-on for most users—no modification needed. Use a torque wrench (45-55 ft-lbs) and check blade bolt condition.
• 3-pack value: Priced at ~$13 per blade, cheaper than OEM singles. But check that all three blades are identical—some decks use left/right offset blades; this set is all the same.
• Quality notes: 4.1 stars from 27 reviews suggests decent consistency, but a few reports of slight imbalance. Balance each blade before installing.

Should You Buy It

Buy this if you own a John Deere 50-inch deck (models listed above) and want a budget-friendly, medium-lift blade for regular mowing. Skip it if you need high-lift for bagging, mulching, or have a different deck size.