HOMELITE RYOBI 996516001 Genuine Blade Mulching Mower Replaces Also Used ON RIDGID Troy-BILT Echo Powerstroke Workforce BLACKMAX

What It Is

This is a genuine OEM mulching blade (part #996516001) designed to replace the original blade on select Homelite, Ryobi, Troy-Bilt, and compatible mowers. It’s intended for mulching grass clippings into fine particles to return nutrients to the lawn, not for bagging or side-discharge.

Fitment & Compatibility

• Check deck size first: This blade is typically used on 21-inch and 22-inch cutting decks. Measure your existing blade length from tip to tip—this blade is 21.5 inches overall.
• Center hole diameter: 1 inch (round). Confirm your spindle matches; some Ryobi/Homelite models use a 1-inch round hole, but a few use a 7/8-inch or star-shaped hole.
• Blade width: 2.25 inches. Ensure your deck’s blade well can accommodate this width without rubbing.
• Brand cross-reference: Fits Homelite, Ryobi (996516001), Ridgid, Troy-Bilt, Echo, Powerstroke, Workforce, and BLACKMAX mowers with compatible deck and spindle specs. Not universal—verify your model number (e.g., Ryobi RY48110, Troy-Bilt TB210).
• OEM vs aftermarket: This is a genuine Troy-Bilt OEM blade. Aftermarket versions may vary in thickness or balance.

Key Things to Know

• Mulching only: This blade has a curved, high-lift design for fine cutting. Do not use for bagging—clippings will not discharge properly.
• Installation: Requires a socket wrench (typically 5/8-inch or 15mm) and a blade removal tool or block of wood to prevent spinning. Torque to 30-40 ft-lbs—overtightening can strip the spindle.
• Balance check: Always balance the blade after sharpening or replacement. An unbalanced blade causes vibration and can damage the spindle or deck.
• Sharpening: Mulching blades dull faster than standard blades due to constant contact with soil. Resharpen every 10-15 hours of use, or replace if bent or chipped.

Should You Buy It

Buy this if you have a compatible 21-22 inch Homelite/Ryobi/Troy-Bilt mower and want a genuine OEM mulching blade for fine, consistent clipping reduction. It’s a solid choice for homeowners who prioritize mulch quality over bagging. If your mower uses a different spindle hole or deck size, skip it.