ZALANA M170642 Mulching Blades – 2 Pack for 42-Inch John Deere Decks (UC22008 Replacement)

Overview

The ZALANA M170642 mulching blades are a direct replacement for the UC22008 set, engineered for 42-inch mower decks. This two-piece pack is designed to work with a broad range of John Deere riding mowers and ZTrak zero-turns, offering a reliable upgrade when you want consistent cutting performance and tidy clippings.

Compatibility and fitment

• Replaces OEM UC22008 for a seamless swap
• FITS MODELS: 42-inch John Deere X330, X350, X354, X370, X380 riding mowers
• FITS MODELS: 42-inch John Deere Z335E, Z335M, Z345M, Z345R Z Trak zero-turn mowers

Build quality and specifications

• Heavy-duty metal construction for durability during regular cutting sessions
• Blade dimensions: center hole 51/64 inch; length 21-3/8 inch; width 2-3/4 inch; thickness 0.197 inch; deck size 42 inches
• Package includes 2 blades designed for a 42-inch deck

Performance and practical use

Mulching blades break down grass clippings into finer material, helping return nutrients to the lawn and support a cleaner finish between mowings. The widened cutting edge and precision balance aim to deliver steady, even cuts across the full deck width.

• Direct replacement feel and fit for compatible John Deere and Z Trak mowers
• Mulching design can produce finer clippings for a neater lawn appearance
• Durable build intended for extended mowing sessions and seasonal maintenance

What to expect in real use

With the M170642 blades installed, you may notice a smoother discharge of clippings and a more consistent mowing pattern on a 42-inch deck. The two-blade setup is designed to cover the full width of the deck, helping maintain an even cut across different grass conditions without frequent blade swaps.