AM100946 38" Mower Blades for John Deere Lesco AM100946 M82408 050536 GT235 GT242 LT133 LT150 LT155 LT166 LX172 LX173 LX176 LX178 LX188 S92 SRX95 STX38 SX95 355D F510 F525 with 38 inch Deck (Low-Lift)

What It Is

This is a set of three 38-inch low-lift mower blades designed for John Deere and Lesco lawn tractors. They are intended for standard grass cutting on residential or commercial 38-inch decks, with a low-lift profile that reduces mulching and clumping in dry conditions.

Fitment & Compatibility

Before buying, verify your mower deck is exactly 38 inches (measure from blade tip to tip). These blades replace OEM part numbers AM100946, M82408, and 050536. They fit models including John Deere GT235, GT242, LT133, LT150, LT155, LT166, LX172, LX173, LX176, LX178, LX188, S92, SRX95, STX38, SX95, 355D, F510, and F525—all with a 38-inch deck. Also compatible with Lesco 38-inch decks. Check that your deck uses three blades (not two or one) and that the center hole diameter matches your spindle (typically 7/8-inch or 1-inch—measure yours). These are aftermarket, not OEM John Deere, so verify blade length (approx. 12.5 inches each) and thickness (0.2 inches) against your originals.

Key Things to Know

• Quality: 4.5/5 rating from 12 reviews suggests solid build, but aftermarket blades may wear faster than OEM—expect 1-2 seasons with regular use.
• Installation: Easy if you have a socket wrench and blade removal tool. Torque bolts to 30-40 ft-lbs. Use thread locker to prevent loosening.
• Common gotchas: Low-lift blades won’t mulch or bag as effectively as high-lift or mulching blades; they’re best for side-discharge cutting. Check blade orientation—curve should face upward toward deck.
• Safety: Always disconnect spark plug and drain fuel before removing blades. Wear gloves.

Should You Buy It

If you have a compatible 38-inch John Deere or Lesco deck and need a budget-friendly replacement for basic cutting, this set works well. Skip it if you require mulching, bagging, or heavy-duty durability—look for high-lift or OEM blades instead.