OCPTY Mulching Blades 48 '' Deck Mower Blades for John Deere AM141035, GX21784,for John Deere GX21786, GY20852 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 S 140 S 170 E 140 Mower Blades 3Pack

What It Is

These are a 3-pack of aftermarket mulching blades designed for 48-inch deck mowers, primarily fitting select John Deere lawn tractors. They replace OEM part numbers AM141035, GX21784, GX21786, and GY20852, and are intended for cutting grass into fine clippings that decompose quickly.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 48 inches—not 42 or 54. These blades fit John Deere models including the 145, 140, 150, 155C, 160, LA130, LA140, LA145, LA165, X140, X165S, X170, and E140. Measure your existing blade length (should be roughly 20.5 inches) and check the center hole and oval drive hole pattern. These are aftermarket replacements, not OEM John Deere parts, so verify your spindle assembly matches the standard 5-point star or oval drive pattern common on Deere 48-inch decks. If you have an older or non-standard deck, measure before ordering.

Key Things to Know

• Quality vs. OEM: At $26.99 for three, these are budget-friendly. Expect slightly thinner steel than genuine John Deere blades, so they may dull faster in sandy or heavy-duty mowing.
• Installation: Standard bolt-on—no special tools needed beyond a socket wrench. Torque bolts to 70-90 ft-lbs. Always sharpen before first use if they arrive unsharpened.
• Mulching vs. Bagging: These are mulching blades (curved, with extra cutting edges). They won’t bag or side-discharge as well as dedicated blades. Use with a mulching plug or cover if your deck supports it.
• Common Gotcha: The 3-pack assumes a three-blade deck. If your 48-inch Deere deck has two blades (rare but possible on some older models), this pack is overkill.

Should You Buy It

Buy these if you need a cheap, functional set of mulching blades for a 48-inch John Deere lawn tractor and don’t mind replacing them more often than OEM. They’re a solid value for light-to-moderate residential mowing, but skip them for commercial use or if you prioritize long blade life.