4PK Genuine OEM Toro 42" TimeCutter SS 74711 74726 74705 Mower Blade 137-1999-03

What It Is

This is a genuine OEM Toro 4-pack of 42-inch replacement blades (part #137-1999-03) designed specifically for Toro TimeCutter SS zero-turn mowers. They are for cutting grass on residential lawns and are not intended for heavy-duty or commercial use.

Fitment & Compatibility

• Deck size: 42 inches. Measure your deck width to confirm.
• Exact models: Fits TimeCutter SS models 74711, 74726, and 74705. Check your mower’s model number on the frame or under the seat.
• OEM vs aftermarket: This is a genuine Toro part, so it will match the original blade specs exactly. Aftermarket blades may vary in thickness, sharpness, and balance.
• Blade measurements: Each blade is approximately 21 inches long, 2 inches wide, with a 5-point star center hole and a 1-inch diameter arbor. Verify your old blade’s hole shape and arbor size.

Key Things to Know

• Quality: OEM blades are made to Toro’s specs for optimal lift and cut quality. They are pre-sharpened but may require a quick touch-up after the first use.
• Installation: Moderate difficulty. You’ll need a socket wrench, torque wrench (recommended torque: 80-100 ft-lbs), and a blade removal tool. Always disconnect the spark plug before starting.
• Gotchas: The 4-pack is for all four blades on a 42-inch deck (two outer, two inner). Do not mix with other blade part numbers. Blades can be installed upside-down—ensure the wing lifts upward toward the deck.
• Lifespan: Expect 25-50 hours of cutting before needing replacement, depending on grass type, debris, and mowing frequency.

Should You Buy It

Buy this if you own a Toro TimeCutter SS 42-inch model (74711, 74726, or 74705) and want a direct, hassle-free OEM replacement that guarantees proper fit and performance. It’s right for homeowners who prefer genuine parts over aftermarket options and want to avoid compatibility guesswork. If you have a different deck size or model, this won’t work.