Toro Part # 137-1999-03 Blade; Fits Timecutter 2019 & Newer

What It Is

The Toro Part # 137-1999-03 is a 22-inch high-lift mulching blade designed for Toro Timecutter zero-turn mowers (2019 and newer). It improves grass-clipping lift and fine mulching performance on standard residential lawns.

Fitment & Compatibility

• Deck size: Fits 42-inch and 50-inch Timecutter decks only (not 44-inch or 54-inch).
• Model years: 2019 and newer Timecutter models (e.g., 75750, 75752, 75754). Check your serial number via Toro’s website to confirm.
• OEM vs aftermarket: This is an OEM Toro blade. Aftermarket equivalents (e.g., Oregon) may fit but often lack the exact lift height and balance.
• Measurements: 22 inches long, 2.5 inches wide, 0.25-inch center hole, 2.5-inch offset. Verify your existing blade matches these dimensions.
• What to check before buying: Look at the part number stamped on your current blade, or measure its length and center hole diameter. Also confirm your deck’s spindle orientation (some Timecutters use a staggered blade set).

Key Things to Know

• Quality: High-carbon steel with a coated finish resists rust and stays sharp longer than basic stamped blades.
• Installation difficulty: Moderate. You’ll need a socket wrench and a torque wrench (set to 55–65 ft-lbs). Blade bolt is reverse-threaded on some older models—check your manual.
• Common gotchas: The high-lift design can cause clumping in wet grass or on slopes; use only for dry mowing. Also, this blade is not for bagging—use a dedicated bagging blade if you collect clippings.
• Compatibility note: Some 2019 models with a 42-inch deck may require a different blade (137-0000-03) if your serial number is below a certain threshold. Always double-check.

Should You Buy It

Buy this if you own a 2019-or-newer Toro Timecutter with a 42- or 50-inch deck, want OEM quality, and primarily mulch grass in dry conditions. It’s a reliable upgrade over worn factory blades, but skip it if you need bagging performance or have a different deck size.