[Grip120] 103-4014 Mule Drive Belt | Fits Exmark Lazer Z AC LC AS Zero Turn Mowers & More | 116.1"
103-4014 green mule drive belt for Exmark Lazer Z mowers in branded BlueStars packaging.
BlueStars 103-4014 lawn mower drive belt specifications chart showing 5/8 inch width and 116.1 inch outer length.
BlueStars 103-4014 mower belt comparison showing 120% improved grip and stability versus standard belts.
BlueStars 103-4014 lawn mower belt performance comparison chart showing fatigue life and bonding strength.
Infographic showing 3-layer material construction of a green BlueStars replacement belt with heat-resistant rubber.
Green replacement mower deck belt for Exmark 103-4014 with compatibility chart.
Infographic guide for choosing the correct 103-4014 lawn mower drive belt by verifying application and part labels.
BlueStars 103-4014 lawn mower drive belt compatibility chart and product packaging.
Green replacement drive belt for Exmark Lazer Z zero-turn mower showing installation point and symptom guide.
Green replacement drive belt for zero-turn lawn mower with installation instructions and diagram.
103-4014 green mule drive belt for Exmark Lazer Z mowers in branded BlueStars packaging.
BlueStars 103-4014 lawn mower drive belt specifications chart showing 5/8 inch width and 116.1 inch outer length.
BlueStars 103-4014 mower belt comparison showing 120% improved grip and stability versus standard belts.
BlueStars 103-4014 lawn mower belt performance comparison chart showing fatigue life and bonding strength.
Infographic showing 3-layer material construction of a green BlueStars replacement belt with heat-resistant rubber.
Green replacement mower deck belt for Exmark 103-4014 with compatibility chart.
Infographic guide for choosing the correct 103-4014 lawn mower drive belt by verifying application and part labels.
BlueStars 103-4014 lawn mower drive belt compatibility chart and product packaging.
Green replacement drive belt for Exmark Lazer Z zero-turn mower showing installation point and symptom guide.
Green replacement drive belt for zero-turn lawn mower with installation instructions and diagram.
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[Grip120] 103-4014 Mule Drive Belt | Fits Exmark Lazer Z AC LC AS Zero Turn Mowers & More | 116.1"

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103-4014 Mule Drive Belt | 116.1"

Key Features

  • Belt dimensions: 5/8" width x 116.1" effective length.
  • Constructed with high-strength aramid cord for resistance against stretching and shock loads.
  • Wrapped-molded neoprene design for enhanced heat and oil resistance.
  • Double-cover fabric layer provides increased durability and reduced friction on clutch surfaces.
  • Designed for heavy-duty drive applications, including hydraulic pump and mule drive systems.

Replaces / Cross-Reference Part Numbers

  • 103-4014
  • 1034014
  • 103-4014-SL
  • 103-4092
  • 265-060
  • 115-204
  • 12237
  • B11034014
  • 810-CBL2235T

Compatibility & Fitment

  • Designed for Exmark Lazer Z series zero-turn mowers.
  • Compatible with 60-inch and 72-inch cutting deck configurations.
  • Fits models specified as AC, LC, and AS variants of the Lazer Z platform.

When to Replace

  • Visible fraying, cracks, or missing chunks along the belt sidewalls.
  • Excessive slipping during mower engagement or under load.
  • Significant stretching resulting in the inability to maintain proper tension.
  • Hardening or glazing of the belt surface due to heat exposure.

Installation Tips

  • Ensure the engine is off and the spark plug wires are disconnected before servicing.
  • Verify that all pulleys are free of debris and rotate smoothly before installing the new belt.
  • Check the tensioner assembly for proper spring tension to prevent premature belt wear.
  • Route the belt according to the machine's technical manual diagram to ensure correct orientation.
  • Run the mower for 5-10 minutes after installation and re-check tension if necessary.
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  • PART NUMBERS

    PART NUMBERS

    This Drive Belt replaces part numbers: Exmark 103-4014, 103-4014-SL.
  • SAVING SOLUTION

    SAVING SOLUTION

    Enjoy the great feeling when your mower is repaired and works like before - BlueStars brings DIY solutions to help you deal with any trouble.
  • FIX MOWER'S SYMPTOMS

    FIX MOWER'S SYMPTOMS

    Slipping or Inconsistent Speed, Loud or Unusual Noises, Excessive Vibration, Burning Smell, Moves slowly or Fails to move.
  • IMPORTANT NOTE

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility.
CHECK BEFORE INSTALLING

CHECK BEFORE INSTALLING

Pulley Bearings: Make sure they spin freely, as damaged bearings can increase friction and wear | Pulleys Edges: Rust or sharp edges can cause belt damage | Pulley Grooves: Clean debris from the pulley grooves | Tensioner Spring: A weak spring can lead to belt slippage and increased friction
4 SIMPLE STEPS

4 SIMPLE STEPS

1. Remove key & disconnect spark plug wire(s) to prevent start; let engine cool. | 2. Raise & secure deck, remove belt covers. | 3. Release tension, remove old belt (note/take photos of routing). | 4. Install new belt, rotate blades/spindle to check alignment & operation.
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!)
LAZER Z – LAS Models LAS23KC524 (Serial Range 600000 - 669999), LAS25KC604 (Serial Range 600000 - 669999, 670000 - 719999, 720000 - 789999), LAS25KC604B (Serial Range 670000 - 719999), LAS25KC604N (Serial Range 720000 - 789999), LAS28KA524 (Serial Range 670000 - 719999, 720000 - 789999), LAS28KA524R (Serial Range 720000 - 789999), LAS28KA604 (Serial Range 670000 - 719999, 720000 - 789999), LAS28KA724 (Serial Range 670000 - 719999, 720000 - 789999), LAS28KA724B (Serial Range 670000 - 719999), LAS28KA724N
LAZER Z LZ20/ LZ23/ LZ25/ Z27 LZ20KC524 (Serial Range 370000 - 439999), LZ20KC524AS (Serial Range 440000 - 509999), LZ23KC524AS (Serial Range 510000 - 599999, 540000 - 599999), LZ23KC604 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999), LZ23KC604AS (Serial Range 440000 - 509999), LZ23KC605 (Serial Range 600000 - 669999, 670000 - 719999), LZ25KC524 (Serial Range 510000 - 599999, 540000 - 599999), LZ25KC604 (Serial Range 510000 - 599999, 540000 - 599999), LZ25KC604AS, Z27KC524
LAZER Z – LZ27 Models LZ27KC604 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999, 720000), LZ27KC605 (Serial Range 600000 - 669999, 670000 - 719999, 720000 - 789999), LZ27KC665 (Serial Range 600000 - 669999), LZ27KC724 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999), LZ27LKA604 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 539999, 540000 - 599999), LZ27LKA724 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999)
LAZER Z LZ28/ LZ30/ LZ31 LZ28KA605 (Serial Range 670000 - 719999, 720000 - 789999), LZ28KA665 (Serial Range 670000 - 719999), LZ28KC605 (Serial Range 600000 - 669999, 670000 - 719999, 720000 - 789999), LZ30KC605 (Serial Range 600000 - 669999), LZ30KC665 (Serial Range 600000 - 669999), LZ30KC725 (Serial Range 600000 - 669999), LZ31BV605 (Serial Range 670000 - 719999, 720000 - 789999), LZ31BV665 (Serial Range 670000 - 719999, 720000 - 789999), LZ31BV725 (Serial Range 670000 - 719999, 720000 - 789999)
LAZER Z EFI LZ26KC604 (Serial Range 370000 - 439999), LZ26KC724 (Serial Range 370000 - 439999), LZ28KC604 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999), LZ28KC665 (Serial Range 600000 - 669999, 670000 - 719999), LZ28KC724 (Serial Range 370000 - 439999, 440000 - 509999, 510000 - 599999, 540000 - 599999)

FAQ

This belt is designed for Exmark Lazer Z series zero-turn mowers. It fits various 52-inch, 60-inch, and 72-inch deck configurations, including Air-Cooled (AC), Liquid-Cooled (LC), EFI, and AS models. Specific compatible models include, but are not limited to, the LZ27KC724, LZ27LKA724, LZ30KC725, LZ31BV725, LAS28KA724, LZ26KC724, and LZ28KC724.
This is a heavy-duty mule drive belt measuring 5/8 inch in width and 116.1 inches in effective length. It features a wrapped-molded design with aramid (Kevlar) cord construction and a double-cover finish to provide the high-friction resistance required for clutching applications.
This belt replaces Exmark OEM part numbers 103-4014, 103-4014-SL, and 103-4092. It also cross-references with several aftermarket numbers, including Stens 265-060, Oregon 115-204, Rotary 12237, Sunbelt B1EM99, B158309, and B11034014.
You should inspect your belt if you notice excessive slipping during engagement, a burning rubber smell, or uneven wear along the sidewalls. If the belt shows signs of glazing (a shiny, hardened appearance), fraying, or cracking, it has lost its ability to grip the pulleys effectively and should be replaced to prevent power loss to the deck.
Before installing the new belt, thoroughly inspect all pulleys for debris, rust, or damage. Ensure the pulley bearings spin freely without noise or play. If the tensioner pulley is stiff or the spring has lost its tension, the new belt will wear out prematurely. Always clean the pulley grooves to ensure the new belt seats properly.
The installation difficulty is moderate. You will need basic hand tools to release the tension on the mule drive assembly. It is recommended to consult your specific mower's service manual for the exact routing path, as improper routing will cause the belt to twist or jump off the pulleys during operation. Expect the process to take approximately 30 to 60 minutes depending on your familiarity with the machine.