Ohoho 3 Pack Heavy-Duty X Blade Adapter Kit, Dual Mulching Blade Adapters for All Standard Commercial Mowers, Fits for XB2 and XB3, (Fits 5/8" Center Hole, 2.8" Width, Flat Blades Only)

What It Is

This is a set of three heavy-duty X-blade adapters that convert standard commercial mower spindles to accept dual mulching blades. Designed for use with XB2 and XB3 blade systems, it’s intended for flat blades only and suits high-use commercial decks needing better mulching or bagging performance.

Fitment & Compatibility

Before buying, confirm these three measurements:

• Center hole: 5/8" (fits most standard commercial spindles with a 5/8" shaft or hole).
• Blade width: 2.8" – only works with flat blades of this exact width. Measure your existing blade’s width; if it’s wider or narrower, this won’t fit.
• Blade type: Flat blades only. Not for curved, high-lift, or gator-style blades.
• System: Compatible with XB2 and XB3 dual-blade setups. If your mower uses OEM single-blade spindles (e.g., Exmark, Toro, Scag, John Deere commercial models), verify your spindle accepts a 5/8" adapter. Most standard commercial spindles do, but some older or specialty models may not.
• Deck size: No specific deck size limit, but ensure your spindle spacing allows two 2.8" blades to overlap without contacting the deck or each other.

Key Things to Know

• Quality: Heavy-duty steel construction with a black oxide finish. Holds up well under commercial use, but some users report slight runout if the spindle isn’t perfectly true.
• Installation: Moderate difficulty. Requires removing the original blade, stacking the adapter over the spindle, then attaching two blades (one on top, one below). Use thread-locker and torque to 70–90 ft-lbs.
• Gotcha: The adapter adds about 1/2" to the blade stack height. Check your deck clearance—low-clearance decks may rub or cause poor cut quality.
• Gotcha: Works only with XB2/XB3 blades (sold separately). Not a universal solution; your existing blades won’t fit unless they’re flat and 2.8" wide.

Should You Buy It

Buy this if you run a commercial zero-turn with a standard 5/8" spindle, use flat blades, and want to upgrade to a dual-mulching setup without buying a new deck. It’s a cost-effective way to improve cut quality and mulching efficiency, but only if your deck has the clearance and your blades are the right width. Skip it if you have curved or gator blades, a non-standard spindle size, or a low-clearance deck.