[Lifetime Warranty] 110-6871 Mower Deck Belt - for 42-inch Deck Toro TimeCutter Z4200 74360 74380 Z4220 74363 Z4235 74365 74366 Z4202 Lawn Boy 81270 Z3400HLX 1106871 Zero Turn Mower | 1/2" x 112"
BlueStars 110-6871 replacement mower deck belt in retail packaging for Toro TimeCutter zero turn mowers.
Specification chart for 110-6871 mower deck belt showing dimensions, material, and compatibility details.
110-6871 mower deck belt compatibility chart for Toro TimeCutter and Lawn-Boy zero turn mowers.
Infographic guide for identifying the 110-6871 mower deck belt for Toro TimeCutter zero turn mowers.
110-6871 mower deck belt and 110-6892 drive belt combo for Toro TimeCutter 42-inch zero turn mowers.
Infographic showing 110-6871 mower deck belt construction with aramid fiber cords and chloroprene rubber.
110-6871 mower deck belt for Toro TimeCutter zero turn mowers, shown with troubleshooting symptoms infographic.
Infographic showing 110-6871 mower deck belt installation tips for Toro TimeCutter zero turn mowers.
110-6871 mower deck belt comparison infographic showing BlueStars aramid cord belt features and performance benefits.
110-6871 mower deck belt installation guide showing the replacement belt and steps for a zero-turn lawn mower.
BlueStars 110-6871 replacement mower deck belt in retail packaging for Toro TimeCutter zero turn mowers.
Specification chart for 110-6871 mower deck belt showing dimensions, material, and compatibility details.
110-6871 mower deck belt compatibility chart for Toro TimeCutter and Lawn-Boy zero turn mowers.
Infographic guide for identifying the 110-6871 mower deck belt for Toro TimeCutter zero turn mowers.
110-6871 mower deck belt and 110-6892 drive belt combo for Toro TimeCutter 42-inch zero turn mowers.
Infographic showing 110-6871 mower deck belt construction with aramid fiber cords and chloroprene rubber.
110-6871 mower deck belt for Toro TimeCutter zero turn mowers, shown with troubleshooting symptoms infographic.
Infographic showing 110-6871 mower deck belt installation tips for Toro TimeCutter zero turn mowers.
110-6871 mower deck belt comparison infographic showing BlueStars aramid cord belt features and performance benefits.
110-6871 mower deck belt installation guide showing the replacement belt and steps for a zero-turn lawn mower.
Lifetime Warranty

[Lifetime Warranty] 110-6871 Mower Deck Belt - for 42-inch Deck Toro TimeCutter Z4200 74360 74380 Z4220 74363 Z4235 74365 74366 Z4202 Lawn Boy 81270 Z3400HLX 1106871 Zero Turn Mower | 1/2" x 112"

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110-6871 Mower Deck Belt - for 42-inch Deck Toro TimeCutter Z4200 74360 74380 Z4220 74363 Z4235 74365 74366 Z4202 Lawn Boy 81270 Z3400HLX 1106871 Zero Turn Mower | 1/2" x 112"

Key Features

  • Belt Type: Deck Drive Belt
  • Dimensions: 1/2 inch width x 112 inch outer circumference
  • Material Construction: Aramid fiber cord for high tensile strength and durability
  • Application: Connects the engine pulley to the mower deck spindles

Replaces / Cross-Reference Part Numbers

  • Toro: 110-6871

Compatibility & Fitment

  • Deck Size: 42 inches
  • Fits select Toro TimeCutter Zero Turn Mower models, including:
    • Z4200 (74360)
    • Z4202 (74380)
    • Z4220 (74363)
    • Z4235 (74365, 74366)
    • RZT420H
  • Fits select Lawn Boy Zero Turn Mower models, including:
    • 81270
    • Z3400HLX

When to Replace

  • Visible signs of wear such as cracks, fraying, glazing, or abrasions
  • Belt slipping, causing inconsistent blade speed or an uneven cut
  • Audible squealing or chirping sounds during operation
  • The belt has stretched and no longer maintains proper tension

Installation Tips

  • Disconnect the spark plug wire before performing any maintenance
  • Consult the owner's manual for the specific belt routing diagram
  • Release the deck belt tension by moving the idler pulley
  • Inspect all pulleys for damage or wear before installing the new belt
  • Ensure the belt is correctly seated in all pulley grooves before reapplying tension

FAQ

This belt fits 42-inch deck zero-turn models in the Toro TimeCutter family, including Z4200, Z4202, Z4220, and Z4235. Compatible model numbers include Toro 74360, 74380, 74381, 74363, 74365, and 74366, as well as Lawn-Boy 81270 Z3400HLX and Hayter 136E / RZT420H 42-inch deck models. Always verify both the belt number and your mower's 42-inch deck size before ordering.
This belt replaces OEM part numbers 110-6871 and 1106871. It also corresponds to part number 07200002 for specific 42-inch deck applications. We recommend confirming the part number printed on your existing belt or checking your mower's specific parts diagram for the most accurate match.
Typical symptoms include blades failing to engage properly, weak or uneven cutting performance, belt slippage or squealing when the PTO is activated, visible cracking or frayed edges, glazing or a burnt rubber appearance, and the belt repeatedly jumping off the pulleys. On zero-turn decks, a stretched belt can also cause reduced blade speed even if the belt appears intact.
This belt measures 1/2 inch wide by 112 inches long and is designed for the 42-inch deck applications specified. Because some mower families use similar-looking belts, it is essential to verify the exact part number and deck size rather than relying on dimensions alone.
For most TimeCutter-style 42-inch decks, this is a moderate repair that typically takes 30 to 90 minutes, depending on deck access and whether you choose to remove the deck for easier routing. Required tools include socket and wrench sets, pliers, and a breaker bar or ratchet to release the spring-loaded idlers. Before installing the new belt, inspect the idler pulleys, tensioner arm, spindle pulleys, and belt keepers for wear or misalignment.
Common causes of failure include normal wear, heat buildup from heavy cutting, seized or rough idler pulleys, weak belt tension, bent belt guides, debris accumulation around the deck, or dragging spindle bearings. A new belt may fail prematurely if a pulley wobbles, an idler bearing is noisy, or the routing is incorrect; therefore, it is important to inspect the entire deck drive system during installation.