Exmark 1-523473-01 Mulch Cover Plate Lazer Z 1-523473 E523473

What It Is

The Exmark 1-523473-01 is an OEM mulch cover plate designed to convert an Exmark Lazer Z mower from side-discharge or bagging to mulching. It blocks the deck’s discharge opening to recirculate clippings for finer cutting and nutrient return.

Fitment & Compatibility

• Primary fit: Exmark Lazer Z models with 48-inch, 52-inch, and 60-inch fabricated decks (check your deck’s model number – typically stamped on the top or side of the deck housing).
• Not universal: Will not fit Lazer Z X-Series or other Exmark series (e.g., Pioneer, Radius) without verifying deck bolt pattern and width.
• OEM part: Direct replacement for Exmark part numbers 1-523473, E523473. No aftermarket cross-references known to be reliable.
• Check before buying: Measure the distance between the two mounting holes on your deck’s discharge chute (center-to-center) – should be 6.75 inches. Also verify the plate’s overall width (approx. 13.5 inches) clears your deck’s belt guard and spindle housings.

Key Things to Know

• Mixed reviews: 2.8/5 rating from only 9 reviews – some report poor fit (gaps or warping) on certain deck revisions. Inspect your deck’s mounting flange for bends before installing.
• Installation difficulty: Easy – remove two bolts from the discharge chute, slide plate into place, reinstall bolts. No cutting or drilling needed.
• Common gotcha: The plate can vibrate loose over time if not tightened evenly. Use thread locker on the mounting bolts.
• Quality note: OEM thin-gauge steel; may rust if left on during wet storage. Paint or coat if you keep it installed year-round.

Should You Buy It

Buy this only if you have an older Lazer Z (pre-2015) with a 48-60 inch fabricated deck and need an exact OEM replacement. For newer models or if you want better durability, consider an aftermarket heavy-gauge mulch plate (e.g., from Oregon or Stens) – but verify fitment carefully. If your deck is warped or the mounting holes are off, skip it.