Exmark 103-6393-S Mulch Blade Set Lazer Z AC AS CT Pioneer Vantage Turf Tracer E S X Series

What It Is

The Exmark 103-6393-S is a set of OEM mulch blades designed for Exmark Lazer Z, AC, AS, CT, Pioneer, Vantage, Turf Tracer, E, S, and X Series mowers. These blades lift and recut clippings into fine particles for clean, no-bag mulching, ideal for frequent mowing or leaf management.

Fitment & Compatibility

Before buying, verify your deck size—this set fits 48-inch, 52-inch, and 60-inch decks (check your model’s spec sheet). It’s compatible with Lazer Z, AC, AS, CT, Pioneer, Vantage, Turf Tracer, E, S, and X Series. Confirm your current blade part number matches 103-6393-S (OEM) or an aftermarket equivalent. Measure blade length (typically 18.5–20 inches, depending on deck) and center hole diameter (usually 1 inch). Ensure spindle nut size (often 5/8 or 3/4 inch) matches your wrench. Stick to OEM for guaranteed fit; aftermarket copies may vary in thickness or balance.

Key Things to Know

• Quality: OEM Grade 8 steel with hardened edge; resists bending and stays sharp longer than budget blades.
• Installation: Moderate difficulty—requires lifting the mower, removing old blades, and torquing nuts to 70–90 ft-lbs. Use a blade lock or wood block for safety.
• Common Gotchas: Mulch blades are not for side-discharge or bagging; using them for those tasks clogs decks. Check blade orientation—the “lift” side faces up. Dull blades strain the engine; replace every 25–30 hours of use.
• No universal fit: Even within Exmark, deck models vary (e.g., Lazer Z vs. Turf Tracer). Cross-reference your deck serial number with Exmark’s parts diagram.

Should You Buy It

Yes, if you own an Exmark zero-turn or walk-behind with a compatible deck and want OEM reliability for fine mulching. Skip if you primarily side-discharge or bag—these blades are optimized for mulching only. For the price, they deliver long life and clean cuts, but verify fitment first to avoid returns.