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109-9023, 135-5777-SL Deck Belt | Fits 72" Deck Exmark Lazer Z X, Next Lazer Z Series & More | Aramid Cord | 219"

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$36.01
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109-9023 Deck Belt | 219"

Key Features

  • Heavy-duty construction for high-torque lawn mower applications.
  • Heat and oil-resistant synthetic rubber compound.
  • High-strength tensile cords designed to minimize belt stretch.
  • Outer wrap fabric provides increased durability and reduced slippage.
  • Dimensions: 5/8 inch width x 219.25 inch effective length.

Replaces / Cross-Reference Part Numbers

  • 109-9023
  • 1099023
  • 109-9023-SL
  • 135-5777
  • 135-5777-SL
  • 14366
  • 265-166
  • B11099023
  • P-1099023
  • 810-CBL2489T

Compatibility & Fitment

  • Fits Exmark Lazer Z X-Series zero-turn mowers with 72-inch cutting decks.
  • Fits Exmark Next Lazer Z series zero-turn mowers with 72-inch cutting decks.
  • Verify deck size and part number against your owner's manual before purchase.

When to Replace

  • Visible fraying, cracks, or chunking along the belt edges.
  • Excessive slippage or squealing during deck engagement.
  • Significant thinning or elongation that prevents proper tensioning.
  • Evidence of hardening or glazing due to prolonged heat exposure.

Installation Tips

  • Lower the mower deck to the lowest position to improve access to pulleys.
  • Remove the belt shields/covers to clear debris and provide enough space for routing.
  • Release tension on the idler pulley assembly using a breaker bar or socket wrench.
  • Verify that the belt is correctly seated in all pulley grooves before applying full tension.
  • Cycle the deck engagement once and re-check tension to ensure the belt has seated properly.
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Brand Model Number
Note Please use "Ctrl + F" on desktop or the "Find in Page" function on mobile to quickly check your compatible model. (This is not an exhaustive list. You can send us your appliance model and we will help you!)
Exmark LAZER Z (SN 790000>), LAZER Z (LZ34KA726), LAZER Z ADVANTAGE (SN 8590000>), LAZER Z ADVANTAGE X (SN 8590000>), LAZER Z AS (SN 790000-849999), LZAS29KA724, LZAS29KA724LP, LAZER Z E (LZE801GKA724A3)
Exmark LAZER Z S series LZS29EKC724, LZS29KA724, LZS740PKA724, LZS740PKC724, LZS740PKC72400, LZS749AKC724A1, LZS749AKC72400, LZS749EKC724, LZS801GKA724A1, LZS801KA724, LZS801PKA724
Exmark LAZER Z X series LZX34KC726, LZX34KC726SS, LZX38KC726, LZX38KC726CA, LZX38KC726SS, LZX921GKA72600, LZX921KA726, LZX980EKC726T0, LZX980EKC72600, LZX980KC726
Exmark LAZER Z Z LZZ34KA726, LAZER Z Z LZZ34KC726, NEXT LAZER ASX, NEXT LAZER Z