JXJKCZ 42-Inch Mulching Mower Blades for John Deere Z315E Z335E Z345M – 2-Pack, Direct-Fit OEM Replacements

These JXJKCZ 42-inch mulching blades are direct-fit replacement mower blades engineered to match John Deere OEM numbers M170642, M170639, UC22008 and restore a clean, even cut on compatible zero-turn and residential decks.

If your John Deere Z- or X-series mower is leaving uneven clumps, tearing grass or producing a ragged finish, worn or damaged blades are often the cause. The JXJKCZ mulching blades are built to the same general dimensions as the referenced OEM parts and sold as a convenient two-pack so you can replace both blade halves on a 42" deck at once.

How do these blades fit my John Deere mower?

These blades are machined to match the center hole diameter and overall length of common OEM replacements, ensuring bolt-on compatibility with several John Deere models. Check your existing blade part number or compare dimensions before ordering.

• Replaces John Deere OEM: M170642, M170639, UC22008, GY20683
• Compatible models include Z315E, Z320M, Z320R, Z335E, Z335M, Z345M, Z345R, and select X and S series
• Blade specs: Length 21 3/7"; Width 2 1/2"; Thickness 0.160"; Center hole round 4/5"

What cutting performance can I expect from the JXJKCZ mulching blades?

These blades are shaped for mulching action: they lift and recirculate clippings so grass is finely cut and dispersed back into the lawn. That helps improve surface appearance and returns nutrients to the soil when used under normal mowing conditions.

• Mulching profile improves clippings reduction and dispersion
• Even cutting edge designed to reduce tearing and striping
• Sold as a two-pack for matched wear and balanced deck rotation

How do I install and maintain these replacement blades?

Installation follows standard deck blade replacement procedures: park on level ground, disconnect spark plug, remove the old blades and torque the mounting bolts to the tractor manufacturer’s specification. Regular sharpening and checking for bends will extend blade life and cutting quality.

• Disconnect spark plug before working under the deck
• Use correct torque settings and inspect blade balance after install
• Sharpen periodically and replace if bent, cracked, or excessively worn

What warranty and support come with the blades?

JXJKCZ offers a 24-month after-sales warranty and email support to address fitment or quality issues. Their service pledge aims to resolve concerns quickly so you can return to mowing with minimal downtime.

• 24-month after-sales warranty included
• Email support for fitment or product questions
• Buy with confidence: quality inspection before shipping

Who is this for: These replacement blades are intended for homeowners and landscaping professionals who own compatible John Deere zero-turn or lawn tractors and want a cost-effective, OEM-equivalent mulching solution. They suit users replacing both blades on a 42" deck seeking matched balance, dependable fitment to the listed OEM numbers, and support from the manufacturer.