Troy-Bilt

What It Is

This is a genuine OEM Troy-Bilt replacement blade (likely a 21-inch or 22-inch mulching/bagging blade) designed for select Troy-Bilt walk-behind mowers. It’s intended for users needing a direct factory-fit replacement for dull or damaged blades.

Fitment & Compatibility

Before buying, verify these four things:

1. Deck size: Confirm your mower deck width (e.g., 21” or 22”). Measure the blade length from hole center to tip, and tip to tip.
2. Model number: Locate your mower’s model number (stamped on the deck or under the rear flap). Compare it to Troy-Bilt’s official parts list for this blade (OEM part number usually printed on the blade itself).
3. OEM vs aftermarket: This is a genuine Troy-Bilt part, so it will match OEM specs exactly. Aftermarket blades may differ in thickness, hole size, or balance.
4. Blade type: Check if your mower uses a straight, mulching, or high-lift blade. This specific blade is likely a mulching/bagging design—not for side-discharge-only decks.

Key Things to Know

• Quality: OEM blades are typically heat-treated and balanced. Expect consistent sharpness and durability, but they may dull faster than aftermarket hardened blades.
• Installation difficulty: Easy—requires only a socket wrench and a block of wood to lock the blade. Always disconnect the spark plug first.
• Common gotchas:
  • The center hole diameter must match your spindle (usually 1” or 7/8”). Measure before ordering.
  • Some Troy-Bilt decks use a “star” pattern or offset hole—this blade may not fit those.
  • Always replace the blade bolt (sold separately) if it’s worn or corroded.

Should You Buy It

If you own a compatible Troy-Bilt walk-behind mower and want a guaranteed fit without hunting for aftermarket specs, this OEM blade is a reliable choice—especially for mulching or bagging. It’s priced a bit above generic blades but avoids fitment headaches. Skip it if you need a high-lift or side-discharge blade, or if your deck uses a non-standard mounting pattern.