Oregon 17" G5 Gator Mulch Blades 3-Pack for John Deere 48" Convertible Decks — 13/16" Hole, 0.203" Thick

High-durability Oregon G5 Gator mulching blades: a three-pack of 17" blades engineered to replace John Deere M127500, M127673 and M145476 on 48" convertible decks.

If you need reliable replacement blades for a John Deere X324 or Z445 48-inch convertible deck, this Oregon 3-pack provides an exact-fit G5 mulching blade designed for consistent grass clipping circulation and finely chopped discharge. The blades are manufactured to the Oregon specification 596-354 and include the length, thickness and hole size required to reinstall without modification. These blades are a like-for-like aftermarket option intended for mowing, mulching and maintaining the deck’s original performance characteristics.

Will these blades fit my mower deck?

These Oregon G5 blades were made to match the mounting and clearance of John Deere part numbers M127500, M127673 and M145476, so they fit directly on compatible 48" convertible decks. Measure your current blade length and center-hole diameter to confirm fit before purchasing.

• Blade length: 17 inches (tip-to-tip).
• Center mounting hole: 13/16 inch diameter.
• Blade width: 3 inches overall.
• Material thickness: 0.203 inches for strength and edge retention.
• Requires three blades to outfit a 48" deck.

How do these blades perform when mulching grass?

The G5 gator-style profile promotes repeated circulation inside the deck so clippings are cut into finer pieces for quicker breakdown into the turf. Their raised lift and cutting geometry are optimized to balance lift for good grass lift with the mulching action that reduces clumps and improves discharge distribution.

• Raised lift of approximately 1-1/4" helps feed clippings into mulching path.
• Gator-style cutting edge encourages recirculation for finer clippings.
• Consistent thickness and edge geometry for predictable cut quality.

What are the construction and durability details?

These blades are made from hardened steel with precision-drilled mounting holes and a consistent thickness to resist bending and wear during regular mowing. The G5 designation refers to the specific mulching profile and edge configuration tuned for performance and longevity under normal homeowner and light commercial use.

• Oregon part number: 596-354 for easy cross-reference.
• Thickness: 0.203" for improved rigidity and edge life.
• Balanced and drilled to OEM center-hole specifications to prevent vibration.

Who is this for? If you own a John Deere lawn tractor or garden tractor with a 48-inch convertible deck—models such as X324 or Z445—or any mower that uses John Deere part M127500, M127673 or M145476, this three-pack of Oregon G5 mulching blades is a direct-fit replacement. It’s aimed at homeowners and groundskeepers who prefer a mulching-style cut to reduce clumping and return finely chopped clippings to the lawn. Choose these blades when you want an OEM-compatible, durable aftermarket set that restores original deck performance and keeps mowing efficient.