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[Grip120] GX26401 Traction Drive Belt for John Deere ZTrak Zero-Turn Mowers Z235 Z255 Z335E Z335M V-Belt - Replaces M165413 - 1/2" x 62.9"

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GX26401 Traction Drive Belt (1/2" x 62.9")

Key Features

  • Type: V-belt for traction drive systems
  • Dimensions: 1/2 inch width x 62.9 inch length
  • Material: High-strength cord construction for resistance to stretching and heat
  • Compatibility: Designed for specific John Deere zero-turn mower transmission systems

Replaces / Cross-Reference Part Numbers

  • John Deere: GX26401, M165413

Compatibility & Fitment

  • John Deere ZTrak Z235
  • John Deere ZTrak Z255
  • John Deere ZTrak Z335E
  • John Deere ZTrak Z335M
  • John Deere ZTrak Z345M
  • John Deere ZTrak Z345R
  • John Deere ZTrak Z355E
  • John Deere ZTrak Z355R
  • John Deere ZTrak Z375R

When to Replace

  • Visible cracking, dry rot, or fraying along the belt edges or underside
  • Loss of tension or slippage during operation
  • Significant stretching that prevents proper drive engagement
  • Evidence of glazing (shiny, slick appearance) on the friction surfaces
  • Unusual noise or vibration during mower movement

Installation Tips

  • Disengage the ignition and remove the key before starting repairs.
  • Clear debris from the pulleys and drive assembly before installing the new belt.
  • Ensure the parking brake is engaged to stabilize the machine.
  • Check the orientation of the V-belt to ensure it is seated properly in the pulley grooves.
  • Verify the belt path follows the factory routing diagram found on the underside of the mower deck or in the owner's manual.
  • After installation, manually rotate the pulleys to verify the belt is fully seated and does not jump the track.

FAQ

This belt is designed for John Deere ZTrak zero-turn mowers, specifically the Z235, Z255, Z335E, and Z335M series.
This traction drive belt replaces John Deere OEM part numbers GX26401 and M165413.
This is an HA-section V-belt measuring 1/2 inch in width with an effective length of 62.9 inches (1596.6 mm).
You should inspect your belt if you notice a loss of ground speed, the mower struggling to climb inclines, excessive slipping when engaging the transmission, or if the belt shows visible signs of fraying, cracking, or glazing on the underside.
Before installing the new belt, inspect the idler pulleys for smooth rotation and check the tensioning spring for proper resistance. Ensure the pulleys are free of debris or grass buildup, as this can cause the new belt to slip or wear prematurely.
Replacing the traction drive belt is a moderate task that typically takes 45 to 90 minutes. You will need basic hand tools, such as a socket set and a wrench to release the tension on the idler pulley. It is recommended to have a helper to assist with routing the belt around the transmission pulleys while you manage the tensioner from the top.