2PK USA Mower Blade for 42" John Deere E100

What It Is

This is a set of two 42-inch mower blades designed to replace the factory blades on a John Deere E100 lawn tractor, or any compatible 42-inch deck. They are for standard mulching or side-discharge cutting on residential lawns.

Fitment & Compatibility

Before buying, confirm your mower deck measures exactly 42 inches (blade tip to tip). This set fits John Deere E100, E110, E120, E130, and many other 42-inch deck models (check your owner’s manual for blade part numbers AM141034, AM137396, or GY20872). Measure your existing blade length (should be about 21 inches) and center hole diameter (usually 15/16 inch). These are aftermarket replacements, not OEM John Deere parts, so verify the blade thickness (around 0.25 inch) and wing shape match your deck’s spindle. Double-check the blade’s offset—some decks require a specific lift height for proper cutting.

Key Things to Know

• Quality: Made in the USA from heat-treated steel; generally as durable as OEM but may not hold an edge as long. Sharpening before first use is recommended.
• Installation: Straightforward—just remove the center bolt and old blade, install new blade with the lift wing facing up toward the deck. Torque the bolt to 50-70 ft-lbs.
• Gotcha: These are not mulching blades—they are standard “high-lift” blades for bagging/side-discharge. If you want mulching, look for a different design.
• Balance: Always check blade balance after installation (use a blade balancer or nail in a wall). An unbalanced blade will cause vibration and uneven cut.

Should You Buy It

If you own a 42-inch John Deere E100 (or compatible model) and need a budget-friendly, US-made blade set for regular cutting, this is a solid choice. It’s not ideal for heavy mulching or commercial use, but for residential lawns and simple replacements, it offers good value.