42" Deck Mower Blades (AM137327 AM141034 AM141032 M154061) Fits John Dee re D100 D110 D105 D130 LA135 X300 Z225 Z235 Lawn Tractor (2 PCS)

What It Is

This is a set of two 42-inch replacement mower blades designed for select John Deere lawn tractors and zero-turn models. They handle standard grass cutting on residential properties and are a direct aftermarket alternative to OEM blade numbers AM137327, AM141034, AM141032, and M154061.

Fitment & Compatibility

Before buying, verify three things: your deck size must be exactly 42 inches (measure cutting width, not deck shell), your mower model is on the list (D100, D110, D105, D130, LA135, X300, Z225, Z235), and your spindle hole pattern matches (typically a 5-point star or oval center hole). These blades are aftermarket, not John Deere genuine, so check blade length (21 inches each), thickness (0.204 inch typical), and center hole diameter (usually 7/8 inch or 1 inch). Cross-reference your OEM part number—AM137327, AM141034, AM141032, or M154061—to confirm fit.

Key Things to Know

• Quality: Made from heat-treated boron steel; edges stay sharp through several mows but dull faster than premium OEM blades on tough grass or debris.
• Installation: Simple—remove old blades with a socket wrench, note washer order, install new ones with the lift wings facing up toward the deck. Torque bolts to 50-65 ft-lbs.
• Gotcha: These are sold as a set of two, but some 42-inch decks use three blades (e.g., some X300 variants). Count your blades before ordering.
• Balance: Out of the box, they’re usually pre-balanced, but verify by hanging each blade on a nail—if one side dips, it needs sharpening or a new blade.

Should You Buy It

Buy these if you need a budget-friendly, drop-in replacement for a standard 42-inch John Deere deck and your mower model is on the compatibility list. They’re ideal for routine residential cutting but not for heavy mulching, thick wet grass, or commercial use. If you want longer edge life or a premium brand, look elsewhere.