36BH 80A36 New Flat Rotary Cutter Blade for Bush Hog RB60 SQ60 105 12 205 255 +

What It Is

This is a 36-inch flat rotary cutter blade designed for heavy-duty Bush Hog models (RB60, SQ60, 105, 12, 205, 255+) and compatible zero-turn or pull-behind mowers. It’s meant for cutting tall grass, brush, and light undergrowth, not for finish mowing.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: This blade is 36 inches long—measure your existing blade tip to tip; it fits only decks that accept a 36-inch blade.
• Mounting hole pattern: Check the center hole diameter and bolt pattern. Bush Hog models typically use a 1-inch or 1-1/8 inch center hole with a square or hex drive. Confirm yours matches.
• OEM vs aftermarket: This is a non-OEM replacement. It should fit Bush Hog RB60, SQ60, 105, 12, 205, and 255+ models, but cross-reference your model number with the blade’s part number (36BH 80A36) to avoid returns.

Key Things to Know

• Quality: Rated 5.0/5 but only 2 reviews—limited feedback. Flat blades like this are simpler to sharpen but may not last as long as OEM or heat-treated alternatives in rocky terrain.
• Installation: Straightforward—remove the old blade, clean the spindle, and torque to 70-90 ft-lbs (check your manual). Use a blade puller if rusted.
• Common gotcha: “Flat” means no lift wing—this blade throws material less efficiently than a cupped or wing-tipped blade. Expect slower discharge and more clumping in wet grass.
• Weight: Heavier than standard blades (likely ~5-6 lbs), which can stress spindles on older decks—inspect bearings before installing.

Should You Buy It

Buy this if you need a budget-friendly, 36-inch replacement for a Bush Hog rotary cutter in light-to-moderate brush and you’re comfortable with flat-blade performance (less lift, more debris left behind). Skip if you need OEM durability for heavy-duty commercial use or require a blade with aggressive discharge for clean finish cuts.