Garden Parts [Lifetime Warranty] GX25628 Deck Belt - Fits 42 inch Mower Deck J-Deere Z335E Z345M Z345R Z315E Z335M Z320M Z320R ZTrak Zero-Turn Z300 Series | 0.5'' x 118.63''
GX25628 replacement deck belt for 42-inch John Deere Z300 series mowers in branded retail packaging.
Infographic showing dimensions and specifications for GX25628 mower deck belt, 118.63 inches long and 0.5 inches wide.
Infographic showing GX25628 mower deck belt construction with aramid fiber cords and chloroprene rubber details.
GX25628 mower deck belt comparison chart showing BlueStars aramid cord durability versus standard belts.
GX25628 replacement mower deck belt for John Deere Z300 series zero-turn mowers with compatibility information.
GX25628 replacement deck belt for John Deere Z300 series zero-turn mowers with 42-inch deck.
GX25628 replacement mower deck belt with installation instructions for John Deere Z300 series zero-turn mowers.
GX25628 replacement deck belt for 42-inch John Deere Z300 series zero-turn mowers.
GX25628 replacement deck belt for 42-inch John Deere Z300 series mowers in branded retail packaging.
Infographic showing dimensions and specifications for GX25628 mower deck belt, 118.63 inches long and 0.5 inches wide.
Infographic showing GX25628 mower deck belt construction with aramid fiber cords and chloroprene rubber details.
GX25628 mower deck belt comparison chart showing BlueStars aramid cord durability versus standard belts.
GX25628 replacement mower deck belt for John Deere Z300 series zero-turn mowers with compatibility information.
GX25628 replacement deck belt for John Deere Z300 series zero-turn mowers with 42-inch deck.
GX25628 replacement mower deck belt with installation instructions for John Deere Z300 series zero-turn mowers.
GX25628 replacement deck belt for 42-inch John Deere Z300 series zero-turn mowers.
Lifetime Warranty

[Lifetime Warranty] GX25628 Deck Belt - Fits 42 inch Mower Deck J-Deere Z335E Z345M Z345R Z315E Z335M Z320M Z320R ZTrak Zero-Turn Z300 Series | 0.5'' x 118.63''

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GX25628 Deck Belt (0.5'' x 118.63'')

Key Features

  • Type: Deck Drive V-Belt
  • Dimensions: 0.5 inch (1/2") Width x 118.63 inch Outer Circumference
  • Construction: Oil and heat-resistant synthetic rubber compound
  • Reinforcement: Internal high-tensile cords for durability and resistance to stretching

Replaces / Cross-Reference Part Numbers

  • 265-828
  • 75-992
  • 175-992
  • 810-CBL2214T
  • KVLR40928
  • 954-04033A
  • M154294

Compatibility & Fitment

  • Brand: John Deere
  • Deck Size: 42 inches
  • Mower Series: ZTrak Z300 Series
  • Compatible Models: Z315E, Z320M, Z320R, Z335E, Z335M, Z345M, Z345R

When to Replace

  • Visible signs of cracking, fraying, glazing, or separation
  • Squealing or slipping sounds during deck operation
  • Noticeable decrease in blade speed or cutting performance
  • Belt feels loose or has excessive slack

Installation Tips

  • Disconnect the spark plug wire before beginning work.
  • Refer to your mower's operator manual for the correct belt routing diagram.
  • Ensure all pulleys and tensioner assemblies are clean and move freely.
  • Confirm the belt is correctly seated in all pulley grooves before re-engaging the deck.
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  • PART NUMBERS

    PART NUMBERS

    This Deck Drive Belt replaces part number: J-Deere GX25628
  • 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

    Uneven Grass Cutting, Loud or Unusual Noises, Excessive Vibration, Burning Smell, Slipping or Stalling Blades
  • 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.
#1 SOURCE OF HIGH-QUALITY REPLACEMENT PARTS

#1 SOURCE OF HIGH-QUALITY REPLACEMENT PARTS

Enjoy the comfort that our small yet mighty parts simplify your mowing experience
Brand Model Number
John Deere Z315E, Z320M, Z320R, Z335E, Z335M, Z345M, Z345R
Cub Cadet RZT-L42, RZT-S42, RZTL42, RZT-L42KH, RZT-S46
MTD 13AP616G597, 13AP616H597, 13AQ626P597, 13AV616G597, 14AQ816H597, 14AQ816K597, 14AQ81GH897, 17AFCACS897
Note This is not an exhaustive list. You can send us your lawn mower model and we will help you!

FAQ

GX25628 fits John Deere ZTrak Z300 Series zero-turn mowers equipped with the 42-inch mower deck, including Z315E, Z320M, Z320R, Z335E, Z335M, Z345M, and Z345R. It is commonly referenced with the 42A deck. Fitment depends on deck size and routing, so match the model and deck configuration before ordering.
This deck belt matches John Deere part number GX25628. Based on the provided information, that is the confirmed replacement number to verify against your parts catalog or the old belt marking.
GX25628 is commonly listed at 0.500 inch wide and about 118.626 inches long. Some listings round the length slightly, so you may also see it shown as 118.63 inches.
Typical symptoms include the blades not engaging properly, weak or uneven cutting, squealing from the deck, visible cracking or fraying, glazing on the belt surface, or the belt repeatedly slipping or jumping off the pulleys. If the mower suddenly stops cutting even though the engine runs normally, the deck belt is one of the first parts to inspect.
For most owners, this is a moderate repair. Plan on about 30 to 60 minutes depending on deck access and whether packed grass debris has to be cleaned out first. Common tools may include a socket or wrench set, work gloves, and a breaker bar or ratchet to relieve idler pulley tension. Taking a photo of the original belt routing before removal helps prevent misrouting during installation.
Inspect the spindle pulleys, idler pulleys, belt keepers, spring tensioner, and deck bearings before fitting the new belt. A worn idler, bent keeper, seized pulley bearing, or weak tension spring can cause a new belt to wear quickly or come off. It is also a good idea to clean built-up grass from the deck and confirm the belt is routed exactly for the 42-inch deck.