HQPASFY AB4200D Mower Blade Set of 2, 21" Mulch Lawn Mower Blades, Compatible with EGO Power & ZT4204L Lawn Mowers 42" Z6 Zero Turn Riding Mower

What It Is

This HQPASFY AB4200D blade set is an aftermarket replacement for EGO Power+ and ZT4204L lawn mowers, designed for mulching on 42-inch zero-turn riding mowers. It’s a 2-pack of 21-inch blades intended to replace worn or damaged OEM blades to maintain cutting performance.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch deck and uses 21-inch blades—measure your current blade length tip-to-tip. This set is specifically listed for EGO Power+ Z6 42-inch zero-turn mowers (models like ZT4204L) and other EGO 42-inch riding mowers. It is not for push mowers or smaller decks. Check your owner’s manual for OEM part numbers (e.g., EGO AB4200D) to verify cross-reference. Also ensure the center hole diameter (typically 1-inch) and blade thickness match your spindle—measure yours if unsure. Aftermarket blades may vary slightly in shape, so compare the cutting edge and mounting hole alignment to your original.

Key Things to Know

• Quality concerns: With a 3.0 rating from only 4 reviews, expect inconsistent sharpness or balance out of the box. Some users report needing to sharpen or balance before use.
• Installation difficulty: Easy if you have a wrench and jack/ramp. Use a torque wrench to tighten blade bolts to 40-50 ft-lbs (check your manual). Always disconnect the battery on EGO models before working under the deck.
• Common gotchas: Aftermarket blades may be thinner or have different lift than OEM, affecting mulching quality or bagging performance. Also, verify the blade orientation—mulching blades often have a curved design that must face the correct direction.
• Mulching vs. bagging: These are mulching blades, so they’re optimized for fine clippings left on the lawn. If you primarily bag or side-discharge, OEM EGO blades may perform better.

Should You Buy It

This set is a budget-friendly option if you need a quick, temporary replacement for an EGO 42-inch Z6 mower and don’t mind checking balance and sharpness yourself. But with low ratings and limited reviews, you’re better off spending more on OEM EGO blades for reliable fit, durability, and consistent cut quality—especially if you value mulching performance or have a large lawn.