JYLEYJ Mulching Blades for 42-inch John Deere Mowers — 2-Pack, Hardened Steel, GX22151/AM137333 Fit

These JYLEYJ mulching blades are a two-pack of heavy-duty replacement blades engineered to fit a wide range of 42-inch John Deere decks and deliver reliable, long-lasting mulching performance.

Whether you want to restore cutting performance or convert worn blades to efficient mulching, these JYLEYJ replacement blades match common OEM profiles (GX22151 / AM137333 / AM137328 / AM141033 / GY20850) and fit many 42-inch John Deere models. Each blade is crafted from hardened steel with an optimized stress distribution design to resist cracking, bending and wear over repeated mowing seasons. This listing covers two blades and includes a 24-month after-sales warranty plus customer support.

Which John Deere models and part numbers do these blades replace?

These mulching blades are sized and shaped to replace several factory and aftermarket part numbers, making them compatible with numerous John Deere lawn tractors and residential mowers that use a 42-inch deck. Check your current blade’s center hole pattern and blade length to confirm fit before purchase.

• Replaces OEM references: GX22151, AM137333, AM137328, AM141033 and compatible with GY20850 and Husqvarna 578431911.
• Designed for 42-inch mower decks — verify center hole is the 7-point star pattern.
• Intended for many John Deere D, LA, E, S, X and Z series models listed in specifications.

How are these blades built and what are the exact dimensions?

The JYLEYJ blades are manufactured from high-strength steel with an improved geometry that spreads stress along the cutting edge, reducing the risk of fracture or deformation. Dimensions are provided so you can match them precisely to your existing blades or OEM specifications.

• Overall length: 21 1/4 inches (approx.).
• Cutting width: 2 3/4 inches; thickness: 0.157 inches for durable edge retention.
• Center mounting: 7-point star hole for direct fit on listed John Deere decks.
• Sold as a 2-pack so you can replace both blades on a single spindle deck or keep a spare.

What mowing benefits and performance can I expect?

When installed correctly, these mulching blades deliver finer clippings and improved grass dispersion compared with severely worn or mismatched blades. The blade shape promotes recirculation within the deck for better mulching without excessive engine load.

• Improved mulching: finer clippings that break down quicker into the turf.
• Durability: optimized stress distribution reduces cracking and deformation risks.
• Consistent cut quality across the width of a 42-inch deck when paired with a matched set.
• Sold in pairs to maintain balanced cutting performance and reduce vibration.

What customer support and warranty come with the blades?

JYLEYJ includes a two-year after-sales warranty with these blades and promises a customer support response within 24 hours for concerns. If a fitment or quality issue arises, contact the seller for troubleshooting or replacement options under the warranty terms.

• 24-month after-sales warranty included with purchase.
• Customer support response targeted within 24 hours.
• Guidance offered for fit verification and installation questions.

Who is this for: These JYLEYJ mulching blades are aimed at homeowners and small property managers who operate 42-inch John Deere mowers and need a rugged, OEM-compatible replacement option. They suit anyone replacing OEM blades, upgrading to better mulching performance, or keeping a spare set on hand. Always compare blade measurements and your mower’s part number before ordering to ensure proper fit and safe installation.