WOODS OEM 57189KT (57189-2 Blade Set) 26.5" Brushbull Series Rotary Cutter - Genuine Replacement Blade Kit - Fits Model BB72, BB72X, BB84, BB84X Brushbull and RC6 Standard Cutter Review

Overview

The WOODS OEM 57189KT blade set is not a lawn mower in the traditional sense—it’s a genuine replacement blade kit designed specifically for heavy-duty WOODS Brushbull Series rotary cutters and the RC6 Standard Cutter. This kit is built for serious property owners, farmers, and land managers who need to keep their brush-cutting equipment running at peak performance. If you own a BB72, BB72X, BB84, BB84X Brushbull or an RC6 cutter, this is the factory-spec blade set to restore your machine’s ability to chew through thick brush, saplings, and overgrown pastures.

Who Should Buy This

1. Owners of WOODS BB72/BB72X or BB84/BB84X Brushbull cutters – If you’re running one of these rugged rotary cutters for clearing heavy brush, small trees, or tall grass on acreage, this genuine OEM blade set ensures perfect fit and performance. It’s not for casual lawn mowing—this is for serious land maintenance.

2. Farmers and rural property managers – When you’re maintaining fence lines, pasture edges, or firebreaks, you need blades that hold an edge and survive impacts. This kit delivers the same durability as the factory-installed blades, so you’re not gambling with aftermarket unknowns.

3. Anyone with an RC6 Standard Cutter – The RC6 is a workhorse for smaller tractors, and this blade set keeps it running like new. If you’ve worn out your originals on rocky or woody terrain, this is the correct replacement.

4. WOODS equipment purists who demand OEM quality – Some owners try cheaper aftermarket blades, only to find poor balance, thinner steel, or incorrect mounting holes. This kit guarantees exact specs, heat treatment, and balance from the original manufacturer.

Key Features Breakdown

Genuine WOODS OEM Part (57189KT) – This isn’t a generic “fits like” blade. It’s the exact same blade WOODS installs at the factory, meaning bolt patterns, thickness, and heat treatment match perfectly. No filing holes or shimming required.

26.5-Inch Blade Length – At over two feet long, these blades are designed for wide-cut rotary cutters (72 to 84 inches). The length gives you aggressive cutting action and efficient coverage, but also means they’re heavy—each blade has serious momentum to slice through thick brush.

Two-Blade Kit – This kit includes both blades needed for most WOODS Brushbull and RC6 cutters. Some aftermarket kits sell single blades, forcing you to buy two separately. WOODS keeps it simple.

Fits BB72, BB72X, BB84, BB84X Brushbull and RC6 Standard Cutter – This compatibility list covers the most popular heavy-duty cutters from WOODS. If your model is on this list, you’re good. Always double-check your deck’s blade bolt pattern (typically 1-inch center hole with offset mounting).

Heat-Treated Steel – WOODS blades are forged and heat-treated for hardness and impact resistance. They’ll hold an edge longer than mild steel blades, and they’re less likely to bend or shatter when you hit a hidden stump or rock.

Pros

• Perfect fit, zero modification needed – Bolts right onto your Brushbull or RC6 without drilling or filing. Saves you time and frustration compared to generic blades.
• OEM quality you can trust – Same steel composition, heat treat, and balance as the original blades. No worrying about premature wear or catastrophic failure.
• Cuts through heavy brush and saplings – The 26.5-inch length and sharp edge make short work of 1-2 inch diameter woody material. Your tractor won’t struggle as much.
• Longer lifespan than cheap aftermarket blades – The heat-treated steel resists dulling and chipping. Most users report getting a full season or more of heavy use before needing replacement.
• Balanced pair – WOODS quality control means both blades are weight-matched, reducing vibration on your cutter and PTO driveline. Less vibration means less stress on your tractor.
• Backed by WOODS warranty – Genuine parts carry the manufacturer’s support. If there’s a defect (rare), you’re covered.

Cons

• Pricey at $218 – This is significantly more expensive than generic blade sets. If you’re on a tight budget, you might be tempted by cheaper options, but you risk fitment and durability issues.
• Heavy and awkward to handle – Each blade weighs several pounds and is over two feet long. Installing them alone can be tricky—you’ll want a helper or a solid workbench.
• Not for standard lawn mowers – These are strictly for heavy-duty rotary cutters. Don’t buy them thinking they’ll fit your riding mower or zero-turn. They’re overkill and won’t mount correctly.
• Limited compatibility – Only fits specific WOODS models. If you have a different brand or an older WOODS cutter not listed, you’ll need to verify fitment before ordering.

Bottom Line

The WOODS OEM 57189KT blade set is the definitive choice for anyone serious about maintaining a BB72/BB84 Brushbull or RC6 cutter. Yes, it costs more than generic alternatives, but you’re paying for guaranteed fit, balanced performance, and steel that survives real-world abuse. If you’re tired of aftermarket blades that wobble, dull quickly, or require modification, this kit is your solution. For farmers, land managers, and property owners who rely on their equipment to work hard every time, this is a no-brainer investment. I recommend it without hesitation—just make sure your model is on the compatibility list before you click “buy.”

Frequently Asked Questions

Q: Will these blades fit my older WOODS Brushbull from the 1990s?
A: They should fit most BB72, BB72X, BB84, and BB84X models regardless of year, but you need to confirm your cutter’s blade mounting pattern. Measure the center hole diameter (typically 1 inch) and the offset distance. If it matches the factory specs, you’re good. When in doubt, contact WOODS with your cutter’s serial number.

Q: Can I sharpen these blades instead of buying a new set?
A: Yes, you can sharpen them a few times as long as the cutting edge isn’t excessively worn or chipped. However, once the blade loses significant material or develops cracks, replace them. These are heat-treated blades, so use a proper grinder and avoid overheating the edge—or you’ll ruin the temper.

Q: How often should I replace these blades under normal use?
A: It depends on what you’re cutting. If you’re mainly mowing tall grass and light brush, a set can last 1-2 seasons