8TEN LawnRAZOR Blade Kit for Honda CD2038 H2113 H2013HK1 H4013 CD4038B 72531-771-L00 72511-771-L00 (Ultra High Lift)

What It Is

The 8TEN LawnRAZOR Blade Kit is a set of ultra-high-lift replacement blades designed for specific Honda walk-behind mowers. These blades create strong upward airflow to lift grass for a cleaner cut and better bagging, suited for tall or dense lawns.

Fitment & Compatibility

Before buying, verify your mower’s deck size and model. This kit fits Honda models with 21-inch or 21.5-inch cutting decks, including CD2038, H2113, H2013HK1, H4013, and CD4038B. It replaces OEM Honda blades with part numbers 72531-771-L00 and 72511-771-L00. Measure your existing blade’s length (21 inches), center hole diameter (usually 1 inch), and spindle hole pattern to confirm match. This is an aftermarket kit, so check that your mower’s blade adapter or spindle accepts a three-hole pattern (common on Honda twin-blade systems). Not for non-Honda decks or smaller/larger cutting widths.

Key Things to Buy

• Quality & Lifespan: 8TEN blades are heat-treated and coated for durability, but ultra-high-lift designs wear faster on sandy or rocky soil due to increased air suction. Expect 1–2 seasons with normal use.
• Installation Difficulty: Easy for DIYers—requires a socket wrench (typically 15mm or 5/8 inch) and a blade removal tool or block of wood to lock the blade. Torque to 35–45 ft-lbs (check your manual). No special skills needed.
• Common Gotcha: The ultra-high-lift design increases engine load and reduces runtime on battery-powered models. If your mower is underpowered (e.g., older 160cc engines), you may notice bogging in thick grass. Also, these blades are louder than standard or low-lift options.
• Balance Check: Always test blade balance after installation—an unbalanced blade causes vibration and deck damage. Use a simple blade balancer (sold separately) or a nail in the wall.

Should You Buy It

Buy this kit if you own a compatible Honda mower and prioritize superior bagging performance in tall, thick, or wet grass, especially for mulching or collecting leaves. Skip if you have a smaller deck, a non-Honda mower, or mow only short, dry lawns where standard blades suffice.