8TEN LawnRAZOR High-Lift Mower Blades for John Deere M148613 M135881 — 2-Pack, 42" Deck Fit, Balanced Precision

If your John Deere lawn tractor is leaving uneven clippings or struggles to lift grass into the discharge, replacing worn blades with the correct high-lift profile can make an immediate difference. These 8TEN LawnRAZOR blades are manufactured to match the dimensions and hole pattern of the listed John Deere OEMs so they install easily and deliver dependable airflow and lift for cleaner bagging and mulching.

How do these blades improve cutting and bagging performance?

The high-lift design increases the airflow under the deck, which helps lift grass blades upright before the cut and evacuates clippings more efficiently. That results in a crisper, more even cut and better bag fill rates without forcing the engine to work harder.

• High-lift blade profile increases suction for improved bagging and discharge.
• Precision edge geometry helps produce uniform clippings and reduced tearing.
• Balanced pair minimizes vibration for smoother operation and longer spindle life.

Will these blades fit my John Deere mower model?

Yes — the 8TEN LawnRAZOR blades are sized and drilled to match several John Deere OEM numbers, ensuring proper fit on compatible 42" convertible decks. Confirm your tractor model and deck code to ensure compatibility before purchase.

• Compatible OEM references: M148613, M135881, M139976, M159047.
• Works with GX325, GX335, GX345, GX355 42C convertible decks.
• Also fits LX255, LX266, LX277, LX280 and X324 with 42C decks when those OEM numbers match.

What are the exact dimensions and mounting details?

These replacement blades follow the specified length, width and hole diameter so they mate correctly with standard spindle hardware used on the listed John Deere decks. Knowing the measurements helps you confirm fitment if your tractor documentation differs.

• Overall blade length: 21-5/8 inches (measured tip to tip).
• Blade width: 2-3/4 inches; thickness: 0.1875 inches for strength and durability.
• Center mounting hole diameter: 13/16 inch (matches listed OEM hub sizes).

How should I install and maintain these replacement blades?

Installation is straightforward with basic hand tools; always follow the tractor manufacturer’s torque spec and safety procedures. Routine maintenance extends blade life and keeps cutting performance optimal.

• Install with original hardware, tightening nuts/bolts to John Deere torque recommendations.
• Sharpen blades periodically and rebalance after grinding to avoid vibration.
• Inspect for nicks, bends or excessive wear; replace blades in matched pairs when necessary.

Who this is for: Homeowners and lawn care enthusiasts who own John Deere lawn tractors with 42" convertible mower decks and need a reliable, OEM-compatible high-lift replacement. Choose this 2-pack if you want to restore bagging efficiency, improve cut quality, and reduce vibration without modifying your mower. These blades suit seasonal maintenance, midlife upgrades, and anyone replacing worn or damaged blades to keep their lawn equipment performing like new.