Reliable Aftermarket Parts Mulching Mower Blades 42" Set of 2 for John Deere L100/L110/L118 — 11/16" Center, OEM Fit

These two LAB50-0014 mulching blades from Reliable Aftermarket Parts are direct-fit replacement blades designed to restore mulching performance on 42" decks for John Deere L100, L110 and L118 models.

If your mower is leaving uneven clippings or not mulching effectively, worn or damaged blades are often the cause. The LAB50-0014 pair offers the correct dimensions and center hole size to match common OEM specifications, letting you swap them in quickly and get back to a finer, more even cut without buying an entire new deck. These blades are aftermarket replacements engineered to match the fit and cutting profile of the original GX20249 and GX20433 parts.

Will these blades fit my John Deere L100, L110 or L118?

Yes — the LAB50-0014 set is made to fit 42-inch mowing decks used on those models. The center hole diameter and C-to-C mounting dimensions match standard John Deere mounting points for direct replacement.

• Designed for 42" decks on L100 / L110 / L118
• Center hole: 11/16" for correct spindle engagement
• C-to-C mounting: 3-3/4" ensures proper bolt alignment

How do these blades affect cutting and mulching quality?

Properly shaped, sharp blades create lift and shearing action that reduces clumping and produces finer clippings for faster decomposition. These replacement blades restore the original cutting geometry so your mower can mulch more efficiently and leave a neater finish.

• Length 21-3/8" and width 2-1/2" match OEM cutting profile
• Sharp leading edge and mulching design promote airflow and recutting
• Two-blade set balances the deck for even clipping distribution

What are the exact measurements and compatibility details?

Knowing the exact dimensions prevents ordering the wrong part. These blades list both the physical size and the OEM part numbers they replace so you can cross-check with your deck or parts manual before installation.

• Overall blade length: 21-3/8" (end-to-end)
• Blade width: 2-1/2" for consistent mulch action
• Replaces John Deere parts GX20249 and GX20433

How do I install and maintain these replacement blades?

Installation is straightforward if you have basic tools: disconnect the spark plug, raise the mower, remove the old blades, then align and tighten the new blades to the specified torque. Regular sharpening and inspection will keep performance consistent and extend blade life.

• Disconnect spark plug and secure mower before working
• Torque mounting fasteners to manufacturer spec after installation
• Sharpen and inspect blades periodically for best results

Who is this for? These LAB50-0014 mulching blades are aimed at home owners and property caretakers who operate John Deere L100-series tractors with a 42" deck and want a cost-effective, OEM-compatible replacement. If you need to restore mulching performance, fix imbalance caused by worn edges, or replace damaged blades without paying OEM prices, this two-blade set provides the correct fit, mounting dimensions, and part-number compatibility to get your mower cutting evenly again. They are also useful for small landscape contractors and DIY mechanics who perform routine mower maintenance and expect consistent fit and predictable blade geometry.