SCITOO AM141035 Lawn Mower Blade for 48 inch Deck 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 replacement mower blade set designed for 48-inch cutting decks on select John Deere lawn tractors. SCITOO AM141035 blades are aftermarket equivalents to OEM part numbers AM141035, GX21784, GX21786, and GY20852, intended for residential mowing on flat to moderate terrain.

Fitment & Compatibility

Before buying, verify three things:

1. Deck size: These blades fit only 48-inch decks. Measure your deck or check your mower’s model tag—common compatible models include D140, D150, D155, D160, E140, E150, E160, LA130, LA140, LA145, LA155, LA165, and the 145/155C series. Not for 42-inch or 54-inch decks.

2. Blade dimensions: Each blade is approximately 20.5 inches long, with a 1-inch center hole and a 0.5-inch offset. Measure your old blade’s length, center hole diameter, and offset depth to confirm match. If your existing blade has a different hole size or no offset, these won’t fit.

3. OEM vs aftermarket: SCITOO is an aftermarket brand. It should bolt on without modifications, but blade thickness or balance may differ slightly from OEM John Deere blades. Check that the blade’s air lift (curved wing) matches your deck’s design for proper grass discharge.

Key Things to Know

• Quality concerns: With only 1 review (4.0 stars), long-term durability is unproven. Aftermarket blades can be softer steel than OEM, meaning they may dull faster or bend on rocks or roots.
• Installation difficulty: Easy—requires a socket wrench and blade removal tool (or a block of wood to prevent spinning). Torque blade bolts to 50-60 ft-lbs. Recheck after first mowing as new blades can loosen.
• Common gotcha: These blades are sold as a set of 3 for a 48-inch deck. If your deck uses 2 blades (some 48-inch models differ), you’ll have a spare. Confirm your mower’s spindle count before ordering.
• Balance: Aftermarket blades are often less precisely balanced than OEM. If you feel vibration after installation, have them professionally balanced or return them.

Should You Buy It

If you need a budget-friendly replacement for a 48-inch John Deere deck and are comfortable with potential trade-offs in steel quality and balance, this set is a low-risk buy at $21.84. Better for light-duty, flat lawns than for heavy use or rocky terrain. If you mow frequently or want guaranteed longevity, stick with OEM John Deere blades.