AM100945 Mower Blade Replaces AM141041 Fits for John Deere 38" Deck 240 GT242 LT150 1338GS, 1538H, 1538HS, for AM137324 AM141039 M153118 M84472 AM100991 (2 Pack)

What It Is

The AM100945 is a 2-pack of aftermarket mower blades designed for 38-inch cutting decks on select John Deere lawn tractors. These blades are a direct replacement for OEM part AM141041 and are intended for standard grass cutting—not mulching or bagging.

Fitment & Compatibility

Before buying, confirm your deck is a 38-inch (not 42 or 48). These blades fit John Deere models including the 240, GT242, LT150, 1338GS, 1538H, and 1538HS. They also replace OEM parts AM137324, AM141039, M153118, M84472, and AM100991. Measure your blade length—should be 18.5 inches, with a 1-inch center hole and a 0.5-inch offset. Aftermarket, so not made by John Deere—check blade thickness (typically 0.20–0.25 inches) to ensure it matches your spindle clearance.

Key Things to Know

• Installation difficulty: Easy with basic tools (socket wrench, blade removal tool). Torque blade bolts to 50–60 ft-lbs.
• Quality: 4.6/5 rating from 18 reviews suggests good balance and edge retention, but some users report slight imbalance—check with a blade balancer.
• Gotcha: These are standard lift blades, not high-lift or mulching. If you need better grass discharge or finer clippings, look for a different design.
• Durability: Heat-treated steel, but aftermarket steel may dull faster than OEM on rocky or sandy soil.

Should You Buy It

If you have a compatible John Deere 38-inch deck and need a budget-friendly, decent-quality replacement for routine cutting, this 2-pack is a solid value. Skip it if you need mulching performance or have a high-hour commercial mower—stick with OEM for longevity.