SCITOO 3 Pack Lawn Mower Blade, 48 inches Blades Compatible for John Deere AM141035, GX21784,GX21786, GY20852 145 155C D140 D150 D155 D160 E140 E150 E160 LA130 LA140 LA145 LA155 LA165

What It Is

This is a 3-pack of 48-inch replacement mower blades designed for select John Deere lawn tractors. They are intended for cutting grass on residential or semi-commercial properties with decks requiring a 48-inch blade span.

Fitment & Compatibility

Before buying, verify your mower deck uses a 48-inch blade (not 42-inch or 54-inch). These blades replace John Deere OEM part numbers AM141035, GX21784, GX21786, and GY20852. Compatible models include the 100-series (D140, D150, D155, D160, E140, E150, E160) and LA-series (LA130, LA140, LA145, LA155, LA165). Also fits 145 and 155C. Measure your existing blade length—these are 48 inches total, with a center hole diameter of 1 inch, a 5-point star drive, and a 0.25-inch thickness. If your mower uses a different hole pattern or offset, these won’t work.

Key Things to Know

• Aftermarket specs: These are not OEM John Deere blades but match the OEM dimensions closely. Check for proper balance before installing—unbalanced blades cause vibration and poor cut quality.
• Installation: You’ll need a torque wrench (tighten blade bolts to 70-90 ft-lbs). Use thread locker on bolts to prevent loosening during operation.
• Common gotcha: The 48-inch length is the total blade length from tip to tip—measure your deck’s blade path to ensure clearance. These are standard lift blades, not high-lift or mulching blades.
• Durability: Made from heat-treated steel; expect moderate lifespan (20-30 hours of mowing) depending on terrain and debris.

Should You Buy It

Buy this if you need a budget-friendly 3-pack for a compatible John Deere 48-inch deck and don’t require OEM branding. It’s a solid value for routine blade swaps on older or high-use tractors, but skip it if you need mulching or high-lift blades, or if your mower uses a different mounting pattern.