Toro 3PK Genuine OEM Notched 52" Deck Lawn Mower Blades fits 103-2528 105-7781-03 1-633482 1-633485 Z 557 30094 30674 39494

What It Is

This is a set of three genuine Toro notched blades designed for 52-inch cutting decks on zero-turn mowers. Made for heavy-duty commercial or residential use, they lift grass for a clean cut and mulching.

Fitment & Compatibility

Before buying, confirm your mower has a 52-inch deck—measure deck width if unsure. These blades fit Toro Z 557, 30094, 30674, and 39494 models, plus others using OEM part numbers 103-2528, 105-7781-03, 1-633482, or 1-633485. They are OEM Toro parts, not aftermarket, so fit is exact. Check blade length (should be roughly 20.5 inches), center hole size (0.5 inch), and notch pattern matches your spindle. Verify by removing one existing blade and comparing measurements.

Key Things to Know

• Quality: Genuine Toro steel with heat-treated edges for longer life than aftermarket options.
• Installation: Requires a torque wrench and blade removal tool; tighten to 70-90 ft-lbs. Not difficult but needs safety precautions (disconnect spark plug).
• Gotchas: Notched design means these are not for standard flat-deck mowers—only for decks with notch-compatible spindles. Do not use with impact wrenches without torque control.
• Performance: Sharp out of box; expect 25-50 hours of cutting life depending on debris and frequency.

Should You Buy It

Buy this if you own a Toro 52-inch zero-turn mower listed above and want guaranteed fit, durability, and factory performance. Skip if you have a different brand or deck size—aftermarket blades may be cheaper but risk poor balance or shorter lifespan. Right for commercial operators or homeowners who prefer OEM reliability.