[6 Pack] 103-6401 103-6401-S High Lift Mower Blades Replacement for Ex Mark Lazer Z, Vantage, Turf Tracer S X Z Series 48" Deck, Compatible with 103-6381 103-6381-S 103-6391 103-6396 109-6872

What It Is

This is a 6-pack of high-lift mower blades designed for Exmark Lazer Z, Vantage, and Turf Tracer S/X/Z series mowers with a 48-inch deck. High-lift blades create increased airflow for better grass clipping discharge, making them ideal for side-discharge mowing in tall or thick grass.

Fitment & Compatibility

Before buying, confirm your deck is exactly 48 inches (not 52 or 60). These blades replace OEM part numbers 103-6381, 103-6381-S, 103-6391, 103-6396, 109-6872, and the listed 103-6401/103-6401-S. Check your current blade length (should be ~18 inches), center hole diameter (typically 1 inch), and thickness (0.25 inch). Not compatible with 48-inch decks on older Exmark models or non-Exmark brands without verifying measurements. Aftermarket blades may have slight weight or balance differences from OEM—balance each blade before installation.

Key Things to Know

• Quality concerns: With a 3.4 rating from only 3 reviews, inspect blades for burrs, uneven edges, or warping. Return if defects are obvious.
• Installation: Requires a torque wrench set to 70–90 ft-lbs (check your manual). Use thread locker on spindle bolts to prevent loosening. Lift mower safely and block wheels.
• High-lift trade-off: These blades pull more power from the engine and wear faster in sandy or dusty conditions. You’ll need to sharpen or replace more often than standard blades.
• Balance check: Always use a blade balancer before mounting. Unbalanced blades cause vibration, premature spindle wear, and uneven cut.

Should You Buy It

This is a budget-friendly option if you own a 48-inch Exmark with a side-discharge deck and need a full set of high-lift blades. However, the low review count and average rating mean you’re taking a chance on quality. If you mow professionally or demand consistent cut quality, stick with OEM Exmark blades—they cost more but have proven reliability.