Exmark 116-5496-S Extreme Blade Lazer Z HP LHP19KA465 LHP23KA465 103-8370 103-8370-S 103-9614 46-Inch 3 Pack

What It Is

The Exmark 116-5496-S Extreme Blade is a factory-recommended replacement blade for 46-inch Lazer Z HP mowers (models LHP19KA465 and LHP23KA465). It’s a high-lift, mulching-capable blade designed for commercial-grade cutting on residential or light commercial turf.

Fitment & Compatibility

Before buying, verify your deck size is exactly 46 inches. This 3-pack directly replaces OEM part numbers 103-8370, 103-8370-S, and 103-9614. It fits Exmark Lazer Z HP models LHP19KA465 and LHP23KA465 only—not standard Lazer Z or other deck sizes. Measure your existing blade length (should be ~18.5 inches) and center hole diameter (1 inch) to confirm. Aftermarket blades may fit, but this is an OEM Exmark part, so no adapter or modification is needed.

Key Things to Know

• Quality: Made from heat-treated steel with a hardened edge. Holds a sharp edge longer than generic blades, but will still need periodic sharpening every 10–15 hours of use.
• Installation: Direct bolt-on. Use a torque wrench set to 70–90 ft-lbs. The blade is directional—install with the air-lift wing facing upward toward the deck.
• Common gotcha: These are high-lift blades, so they create strong suction for bagging/mulching but may wear faster in sandy or abrasive conditions. Not ideal for dry, dusty mowing.
• Pack size: You get three blades—one for each spindle. No extra hardware included; reuse your existing bolts if they’re in good shape.

Should You Buy It

Buy this if you own an Exmark Lazer Z HP with a 46-inch deck and want a direct OEM fit with proven performance. It’s best for operators who prioritize cut quality and bagging efficiency over extreme blade longevity. Skip if you’re on a tight budget—generic equivalents cost less but may dull faster or require balancing.