Inren GX22151 21-3/8" Curved Lawn Mower Blades, 2-Pack — Fits John Deere 42" Decks for Better Mulching

These Inren GX22151 replacement blades are a two-pack of curved 21 3/8" mower blades engineered to fit many 42" John Deere decks and compatible tractors, offering improved clipping circulation and finer mulching.

If your 42" John Deere mower (models such as 102, 115, 125, 135 or D100/D105 series) needs fresh blades, the Inren GX22151 set is built to match OEM hole patterns and cutting dimensions so you can restore performance without custom fitting. The blades are sold as a pair and listed as compatible replacements for AM137328, AM141033, GY20850 and similar part numbers.

Will these blades fit my John Deere 42" mower or tractor deck?

Measure and compare before ordering: these Inren blades have a 7-point star center hole pattern and specific dimensions to align with many common John Deere decks. Confirm compatibility by matching the OEM part numbers or the blade measurements to your existing parts.

• Blade length: 21 3/8" (overall cutting edge)
• Width: 2 11/16" and thickness: 0.2860"
• Center: 7-point star hole pattern to match listed John Deere models
• Replaces: AM137328, AM141033, GX22151, GY20850

How do the curved GX22151 blades change cutting and mulching?

The blades use a curved profile that promotes airflow under the deck, lifting grass for a cleaner cut and circulating clippings for finer mulching. That design helps chop clippings more thoroughly, returning smaller pieces to the lawn to decompose.

• Curved shape increases airflow and lifts grass before cutting
• Longer, sharpened cutting edge supports repeated cuts between resharpening
• Improved circulation reduces clumping and encourages even dispersion
• Designed to produce smaller, finer clippings for natural lawn feeding

What do I need to know about installation and maintenance?

Installation follows standard mower blade replacement procedures: disconnect the spark plug, secure the deck, and fit each blade to the spindle using the matching bolt pattern. Keep blades balanced and sharpened for best results, and replace in matched pairs to maintain even deck performance.

• Always disconnect power and secure the mower before replacing blades
• Torque bolts to manufacturer specifications for safe mounting
• Check blade balance after sharpening to avoid vibration
• Replace both blades together when servicing a two-blade deck

How durable are these replacement blades and what should I expect?

Manufactured to match OEM-style thickness and edge geometry, the Inren GX22151 blades are made for season-long use under normal mowing conditions. Regular inspection for nicks and proper sharpening will extend life and preserve cutting quality.

• 0.2860" thickness for stiffness and wear resistance
• Robust edge design intended for repeated sharpening cycles
• Sold as a 2-piece set to maintain balanced cutting on dual-blade decks
• Compatible with common John Deere part numbers for straightforward replacement

Who this is for: Homeowners and lawn professionals with 42" John Deere mowers or compatible tractor decks who want a cost-effective, OEM-replacement style blade that improves airflow and mulching. Ideal when you need exact-fit blades that match common John Deere hole patterns and dimensions without modifying your deck.