Mower Belt 954-04045 Mower Deck Belt - Fits 42" Cub Cadet LT1042 RZT42 Toro LX420 - 1/2" x 109"
954-04045 replacement mower deck belt for Cub Cadet and MTD, 1/2 x 109 inch aramid belt in retail packaging.
Specification chart for 954-04045 mower deck belt showing 1/2 inch by 109 inch dimensions and product details.
954-04045 mower deck belt compatibility chart for Cub Cadet, Toro, and Troy-Bilt mowers.
Infographic guide for identifying the correct 954-04045 mower deck belt application and part number location.
BlueStars 754-04045 mower deck belt and 954-0461 drive belt combo kit for 42-inch lawn mowers.
Infographic showing BlueStars 954-04045 aramid mower deck belt construction features and material specifications.
954-04045 mower deck belt for 42-inch lawn tractors shown with troubleshooting guide for common mower symptoms.
BlueStars 954-04045 mower deck belt comparison infographic showing performance benefits and aramid cord construction.
Informational graphic for 954-04045 mower deck belt showing pre-installation checks for pulleys and tensioner springs.
954-04045 mower deck belt replacement with installation instructions for Cub Cadet and Troy Bilt lawn mowers.
954-04045 replacement mower deck belt for Cub Cadet and MTD, 1/2 x 109 inch aramid belt in retail packaging.
Specification chart for 954-04045 mower deck belt showing 1/2 inch by 109 inch dimensions and product details.
954-04045 mower deck belt compatibility chart for Cub Cadet, Toro, and Troy-Bilt mowers.
Infographic guide for identifying the correct 954-04045 mower deck belt application and part number location.
BlueStars 754-04045 mower deck belt and 954-0461 drive belt combo kit for 42-inch lawn mowers.
Infographic showing BlueStars 954-04045 aramid mower deck belt construction features and material specifications.
954-04045 mower deck belt for 42-inch lawn tractors shown with troubleshooting guide for common mower symptoms.
BlueStars 954-04045 mower deck belt comparison infographic showing performance benefits and aramid cord construction.
Informational graphic for 954-04045 mower deck belt showing pre-installation checks for pulleys and tensioner springs.
954-04045 mower deck belt replacement with installation instructions for Cub Cadet and Troy Bilt lawn mowers.
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954-04045 Mower Deck Belt - Fits 42" Cub Cadet LT1042 RZT42 Toro LX420 - 1/2" x 109"

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954-04045 Mower Deck Belt (1/2" x 109")

Key Features

  • Application: Primary Deck Drive Belt (Blade Belt)
  • Type: V-Belt
  • Width: 1/2 inch
  • Outer Length: 109 inches
  • Material: Durable rubber composite construction designed for high-stress mower deck applications.

Replaces / Cross-Reference Part Numbers

  • 954-04045
  • 754-04045
  • 754-04045A
  • 954-04045A
  • OCC-754-04045
  • 112-5800
  • 265-195
  • 75-714
  • 11845
  • 810-CBL2344T

Compatibility & Fitment

  • Fits specific riding mowers and lawn tractors with 42-inch cutting decks.
  • Cub Cadet: LT1040, LT1042, RZT17, RZT42
  • MTD: Fits various models manufactured between 2006 - 2008.
  • Toro: LX420 (2006), LX423, LX425, LX426, LX427
  • Troy-Bilt: Bronco, Super Bronco, TB2246, RZT-42
  • Also fits select models from Yard Machines, White Outdoor, and Yard-Man.

When to Replace

  • Visible damage such as cracks, fraying, glazing, or missing sections.
  • Belt slips, causing inconsistent blade speed or poor cutting performance.
  • Audible squealing or chirping from the deck area during operation.
  • Blades fail to engage or stop spinning while the engine is running.

Installation Tips

  • Before starting, disconnect the spark plug wire and engage the parking brake for safety.
  • Lower the cutting deck to the lowest possible position to relieve tension.
  • Take a photo or note the routing of the old belt around all pulleys before removal.
  • Release the belt tensioner mechanism, typically an idler pulley on a spring-loaded arm.
  • Remove the old belt and route the new belt according to your diagram or photo.
  • Ensure the V-profile of the belt is seated correctly in each pulley groove.
  • Re-engage the tensioner and verify the belt is taut and properly aligned.
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  • PART NUMBERS

    PART NUMBERS

    This Deck Belt replaces part numbers: 954-04045, 754-04045, OCC-754-04045, 490-501-M019, Toro 112-5800
  • 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.
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!)
Cub Cadet (42" & 48" Deck Models) LT1042 (13BX11CG710, 13BX11CG709, 13AX11CG756, 13AX11CG710, 13AX11CG709, 13BX11CG712) *Note: for use with spindles 618-04461 and 618-0659, LT 1042 (13AX11CG010), RZT 42 (17AA5B4G709, 17AA5B4G710, 17BA5A4G709, 17BA5A4G710, 17BA5A4G712), LT1040 (13BX10CG710, 13AX10CG710, 13AX10CG709), RZT-17 (17AA5A4G712, 17AA5A4G710), GT2148 (14A-3JEB010), 19B40015 (19B40015100), 19A40015 (19A40015603, 19A40015100)
Troy-Bilt (Bronco & RZT Series) Bronco (13AV60KG011, 13AV60KG066, 13AV60KG211), Super Bronco (13BX60TG766, 13BX60TG711, 13AX60TG766), RZT 42" (17AA5AAG766), Range Rider (13AX61KG011)
Toro (LX Series) LX420 (13AX60RG744, 13AX60RG544), LX423 (13AX60RG848), LX425 (13BX60RG544, 13BX60RG748, 13BX60RG744), LX426 (13AL60RG044, 13AL60RG048, 13AL60RG544, 13RL60RG044, 13RL60RG244), LX427 (13AX61RG848)
White Outdoor ZT-42 (17AA554G790, 17BA5A4G790), ZT-17 (17AA5A4G790), LT-942G (13AX605G790)
Yard-Man (Exmark Lazer OEM Data) LZE751GKA604A1 (400000000 - 402082299; 402082300 - 404314158), LZE751GKA604C1 (400000000 - 402082299; 402082300 - 404314158), LZE801GKA604A3 (316000000 - 399999999), LZE801GKA604B1 (316000000 - 399999999), LZE801GKA604C1 (400000000 - 402082299)
Yard Machines & Columbia Yard Machines RZT42 (17AA5AAG700), Columbia V616G (13AV616G597), Columbia V606G (13AV606G597), Columbia P616G (13AP616G597), Columbia RZT 42 (17AA554G755), Columbia V60GG (13AV60GG897), Columbia P61GG (13AP61GG897), Columbia V61GG (13AV61GG897)

FAQ

This belt is used on select 42-inch deck machines across multiple MTD-built brands, including Cub Cadet, Toro, Troy-Bilt, and MTD. Models specifically associated with this belt in the title or reference data include Cub Cadet LT1040, LT1042, RZT42, and RZT17; Toro LX420, LX423, LX425, LX426, and LX427; and Troy-Bilt Bronco, Super Bronco, Range Rider, and some RZT 42 units. Fitment can vary by serial range and deck version, so the safest check is to match both the belt number and the 42-inch deck application on your mower.
Known cross-reference numbers for this belt include 954-04045, 754-04045, 490-501-M019, 112-5800, 490-501-F019, 754-04045A, 954-04045A, OCC-754-04045, and OEM-754-04045.
Reference specs for this deck drive belt are 1/2 inch top width and 109 inch length. It is used as a 42-inch mower deck belt, so it is important to match both the belt number and deck size rather than relying on length alone.
Common signs include the blades not engaging, weak or uneven cutting, a belt that slips when the PTO is engaged, squealing from the deck area, visible cracking or glazing, frayed edges, or a belt that has stretched enough to jump off the pulleys. If the belt broke suddenly, also inspect the spindle pulleys, idler pulleys, and belt keepers before installing the new one.
On most 42-inch riders and zero-turns using this belt, replacement is a moderate DIY job. Typical tools are a socket or wrench set, work gloves, and sometimes pliers for deck pins or covers. Expect roughly 30 to 90 minutes depending on whether the deck must be removed for access. Taking a photo of the original belt routing before removal helps avoid misrouting during reassembly.
Check that all deck pulleys spin freely, the idler tensioner moves smoothly, the spring is intact, and the spindle bearings are not noisy or loose. Also inspect belt guards and keepers for bends that could rub the new belt. Many replacement belts fail early because an idler pulley is seized, the deck is packed with debris, or the belt routing is incorrect.