Caltric 42" Deck Mulching Blade Compatible with John Deere D105 LT160 X300 X300R X304 X310 X324 X330 X340 X350 X354 X360 X370 107H X130R X155R X167R X300 X304 X324 X305R X330 X350 X350R X354 X370

What It Is

The Caltric 42" Deck Mulching Blade is a replacement blade designed to finely chop grass clippings and return them to the lawn as natural fertilizer. It fits select John Deere lawn tractors with a 42-inch cutting deck, ideal for residential mulching use.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch deck and that the model is listed (e.g., D105, LT160, X300 series, X304, X310, X324, X330, X340, X350, X354, X360, X370, plus X130R, X155R, X167R, X305R, X350R). This blade replaces OEM part numbers M155066, M156067, M160217, M161069, and M164031. Measure your existing blade: center hole diameter is 0.75 inches, overall length is 21.5 inches, and width is 2.5 inches. Verify these match your current blade—decks vary by year, and some non-listed models may differ.

Key Things to Know

• Quality: Caltric blades are budget-friendly aftermarket parts, not OEM. Expect decent steel and coating, but durability may be slightly less than John Deere originals.
• Installation: Easy DIY job—remove the old blade, install with the sharp edge facing the deck’s rotation direction, and torque to 30-40 ft-lbs. Use a blade removal tool for safety.
• Common Gotchas: Check for spindle wear or bent blade adapters before installing. Mulching blades require higher engine RPM for effective cutting; don’t use for bagging or side-discharge without swapping.
• Performance: Works well for regular mulching on dry grass. Wet or thick grass may clog more than OEM blades.

Should You Buy It

If you need an affordable mulching blade for a compatible John Deere 42" deck and don’t mind aftermarket quality, this is a solid choice for light-to-moderate residential use. For heavy-duty or commercial conditions, consider OEM blades for longer life.