GX22151 Gator Mulching Mower Blades Compatible with John Dee re 42'' Cut Deck, GY20850 Replacement Blades Fit for John Dee re 102 125 135 D100 D105 D130 Lawn Tractor, Replace AM141033 AM137328, 2 Pack

What It Is

These GX22151 Gator mulching blades are aftermarket replacements designed for John Deere 42-inch cutting decks, ideal for mulching grass clippings into fine particles to recycle nutrients back into the lawn. They fit select John Deere 100-Series lawn tractors and replace OEM part numbers AM141033 and AM137328.

Fitment & Compatibility

Before buying, confirm your deck is exactly 42 inches (measured blade tip to tip). These blades fit John Deere models: 102, 125, 135, D100, D105, D130, and others with a 42" deck. Verify your current blade length, width, center hole diameter (typically 7/8" or 1"), and offset. Aftermarket blades may have slightly different balance or thickness than OEM—check that the lift and wing profile matches your original for proper mulching performance.

Key Things to Know

• Quality: Gator-style blades have serrated edges for finer mulching but wear faster than standard blades—expect to sharpen or replace more often.
• Installation: Easy DIY job with a socket wrench and blade removal tool. Always disconnect the spark plug and use jack stands if raising the mower.
• Common Gotchas: These are not for bagging or side-discharge decks—mulching only. The 2-pack covers two blades; verify your deck uses two (not three) blades.
• Compatibility: Double-check your deck model number (stamped on the deck or frame) against the seller’s list—some 42" decks vary by year or series.

Should You Buy It

If you own a compatible John Deere 42" deck tractor and want aggressive mulching performance without paying OEM prices, these blades are a solid, well-rated choice. They’re best for homeowners who mow frequently and prioritize fine clippings over blade longevity. Avoid if you need bagging or side-discharge capability.