52" Deck Mower Blades Fit for Exmark Toro Lazer Z X AS CT HP AC E Series Lazer S-Series Turf Tracer X S Series Pioneer S E Series Lawn Mower Replaces OEM 103-6402-S 109-6873 (Notched High Lift) 3 Pack

What It Is

This is a 3-pack of 52-inch notched high-lift mower blades designed for zero-turn mowers. They replace OEM parts 103-6402-S and 109-6873, optimized for cutting grass and improving airflow in commercial and residential mowing decks.

Fitment & Compatibility

• Deck size: 52-inch cutting deck only. Measure your deck width to confirm.
• Brand/models: Fits Exmark Lazer Z (X, AS, CT, HP, AC, E Series), Lazer S-Series, Turf Tracer (X, S Series), Pioneer S, E Series; also Toro Lazer Z and Z-Master models. Verify your specific model number.
• OEM cross-reference: Replaces Toro/Exmark 103-6402-S and 109-6873. Aftermarket, not OEM.
• Measurements: Blade length ~26.25 inches, center hole 1 inch diameter, offset 0.5 inch. Check your existing blade’s length, hole size, and offset before buying.

Key Things to Know

• Notched high-lift design: Improves grass lift and bagging but creates more dust; not ideal for dry, dusty conditions.
• Installation difficulty: Moderate. Requires lifting the mower, removing blade bolts (often stuck), and torquing to spec (~70-90 ft-lbs). Use a blade lock tool.
• Balance check: Aftermarket blades may need balancing before installation. Unbalanced blades cause vibration and wear spindles.
• Durability: Heat-treated steel; holds edge well but may dull faster on rocky terrain. Expect 1-2 seasons of regular use.

Should You Buy It

Buy this if you own a compatible 52-inch Exmark or Toro zero-turn and need a cost-effective replacement for worn OEM blades, especially for mulching or bagging. Avoid if you mow very sandy or dusty lawns—the high-lift design kicks up debris. For $39.99 for three, it’s a solid value for DIY maintenance.