8TEN LawnRAZOR Blade Set for Exmark Lazer Z S-Series Turf Tracer 48 Inch Deck 103-6396 (Toothed) 3 Pack

What It Is

The 8TEN LawnRAZOR Blade Set is a toothed, aftermarket replacement blade pack (three blades) designed for 48-inch cutting decks on Exmark Lazer Z S-Series and Turf Tracer zero-turn mowers. The toothed edge is intended for mulching or shredding grass and light debris, not for standard bagging or side-discharge.

Fitment & Compatibility

Critical checks before buying:

• Deck size: Only for 48-inch Exmark decks. Does not fit 36", 42", 52", or 60" decks.
• Model compatibility: Exmark Lazer Z S-Series (including S/N 940,000+), Turf Tracer, and some Lazer Z HP models. Not for older Lazer Z (non-S) models or commercial Lazer Z X-Series.
• OEM reference: Replaces OEM part number 103-6396. Confirm your current blade is a 103-6396 or cross-references to it.
• Measurements: Blade length is 16.5 inches, center hole diameter 0.5 inches, with a 0.25-inch thickness. Measure your existing blade to verify.
• Quantity: This is a 3-pack – one blade for each spindle. You need exactly three for a 48-inch deck.

Key Things to Know

• Toothed edge: Aggressive mulching design. Expect a finer clip than standard straight blades, but increased noise and vibration. Not ideal for wet grass – clogs quickly.
• Installation: Straightforward if you have a blade removal tool and torque wrench. Torque to 70-90 ft-lbs (check your Exmark manual). Use anti-seize on spindle threads to prevent rust seizing.
• Balance: Each blade is pre-balanced from 8TEN, but always check for balance yourself after sharpening or if you notice vibration. Unbalanced blades can damage spindles.
• Durability: Heat-treated steel holds an edge longer than cheap stamped blades, but toothed edges dull faster on sandy or rocky terrain. Expect 2-3 seasons of residential use.

Should You Buy It

Best for Exmark owners with a 48-inch deck who want aggressive mulching performance without paying OEM prices. Not for bagging, wet grass, or commercial operators needing maximum blade life. If you prefer a clean side-discharge cut or need OEM-specific fitment, stick with genuine Exmark blades.