ACEBRI Mulching Blade 48 '' Fit for John Deere AM141035, GX21784, for John Deere GX21786, GY20852 D145 D140 D150 D155 C D160 LA130 LA140 LA145 LA165 X165 S140 S170 E140 Z245 Z255 Z355E Z355, 3Pack

What It Is

This is a 48-inch mulching blade set (3-pack) designed to replace OEM blades on select John Deere lawn tractors and zero-turn mowers. It fits models including D140, D145, D150, D155, D160, LA130, LA140, LA145, LA165, X165, S140, S170, E140, Z245, Z255, Z355E, and Z355. The blade’s curved design lifts grass for finer clippings, reducing bagging need.

Fitment & Compatibility

Before buying, confirm your mower deck is 48 inches wide—this blade won’t fit smaller or larger decks. Check your existing blade’s part number; it replaces OEM numbers AM141035, GX21784, GX21786, and GY20852. Measure the blade’s center hole diameter (should be ~1 inch) and overall length (48 inches). Verify spindle orientation—some John Deere decks require a specific blade offset or center hole shape. This is an aftermarket part, not genuine John Deere, so confirm no deck modifications are needed.

Key Things to Know

• Quality: ACEBRI blades are budget-friendly but may not hold edge as long as OEM. Inspect for warping or burrs before installation.
• Installation: Use a torque wrench to tighten blade bolts to 30-40 ft-lbs. Always disconnect spark plug before working.
• Balance: After installing, check blade balance (hang on a nail). An unbalanced blade causes vibration and cuts unevenly.
• Mulching vs. bagging: These are dedicated mulching blades—they won’t work well with side-discharge or bagging setups unless you switch blades.

Should You Buy It

If you need a cost-effective 3-pack of mulching blades for a 48-inch John Deere tractor or zero-turn (listed models) and don’t mind aftermarket quality, this is a decent replacement. It’s not for demanding commercial use—expect shorter lifespan than OEM. Ideal for homeowners with one or two mowers who want a spare set.