Mower Blades for Exmark Ariens Gravely Toro Ferris Snapper 48 inch 04919100 103-2527 103-1577 103-2507 103-6583 00273000 1520843 539100340 5020843S Lazer Z HP iZ4817 iZ4818 iZ4819 / High Lift, 3 Pack

What It Is

These are high-lift replacement mower blades designed for 48-inch zero-turn mowers from Exmark, Ariens, Gravely, Toro, Ferris, and Snapper. They are optimized for bagging and side-discharge cutting in thick or wet grass, providing superior lift and airflow compared to standard blades.

Fitment & Compatibility

Deck size: 48-inch cutting deck only.
Cross-reference OEM part numbers: 04919100, 103-2527, 103-1577, 103-2507, 103-6583, 00273000, 1520843, 539100340, 5020843S.
Common models: Exmark Lazer Z HP, Toro iZ4817, iZ4818, iZ4819, and similar 48-inch zero-turn mowers from listed brands.
Before buying:

• Measure blade length (should be 17.5 inches center-to-center) and center hole (5/8 inch diameter).
• Verify your deck’s spindle orientation and blade offset (these are high-lift, so check clearance under your deck when installed).
• Not compatible with 48-inch walk-behind mowers or decks with different spindle patterns.

Key Things to Know

• High lift = more power draw. Ensure your deck belt and engine are in good condition to avoid stalling in heavy grass.
• Installation: Use a torque wrench—tighten to 70–90 ft-lbs. Reverse threads on some spindles; check your manual.
• Durability: Aftermarket blades in this price range are typically hardened steel but may dull faster than OEM. Sharpen after every 10 hours of use for best performance.
• Common gotcha: These blades sit slightly lower than stock; verify blade tip clearance (minimum 1/8 inch) to avoid striking the deck shell.

Should You Buy It

If you need high-lift blades for a 48-inch zero-turn and want to save money over OEM (typically $20–30 more per pack), this is a solid value. Best for operators who bag or side-discharge frequently and don’t mind sharper wear. Avoid if you only mulch or cut in dry, short grass—a standard or mulching blade will last longer.