103-6403 103-6403-S Hi Lift Mower Blade Compatibles with Ex mark 60"" Deck, 103-6383, 103-6383-S High Lift Heavy Duty Blade Compatibles with Laser HP, Laser Z, Laser Z E, Laser Z S, 3 Pack

What It Is

This is a 3-pack of heavy-duty high-lift mower blades designed for 60-inch Exmark decks. They create stronger airflow for superior grass clipping discharge and bagging performance, ideal for commercial or residential mowing in tall or wet grass.

Fitment & Compatibility

• Deck size: Fits Exmark 60-inch decks only. Measure your deck width precisely before purchase.
• Model compatibility: Confirmed for Exmark Laser HP, Laser Z, Laser Z E, and Laser Z S models. Also cross-references OEM part numbers 103-6403, 103-6403-S, 103-6383, and 103-6383-S.
• Aftermarket vs. OEM: This is a non-OEM replacement. Verify blade length (20.5 inches), center hole diameter (5/8 inch), and thickness (0.25 inch) against your current blade to confirm fit.
• Check spindle clearance: High-lift blades have more upward curve; ensure your deck’s spindle housing allows clearance without rubbing.

Key Things to Know

• Quality concerns: Mixed reviews—some report blades warp or dull faster than OEM. Inspect for balance and edge uniformity before installation.
• Installation difficulty: Moderate. Requires lifting mower, removing existing blades, and torquing bolts to 70-90 ft-lbs. Use a blade removal tool or impact wrench.
• Performance trade-off: High lift improves bagging and discharge but increases engine load and fuel consumption. Not ideal for dry, dusty conditions where you want less lift.
• Balance check critical: Always balance after installation. Unbalanced blades cause vibration, wear spindle bearings, and reduce cut quality.

Should You Buy It

Buy this if you need an affordable 3-pack for heavy bagging or discharge on your Exmark 60-inch deck and are willing to risk slightly shorter lifespan versus OEM. Skip if you prioritize maximum durability, low vibration, or have a different deck size.