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Description
S484128 – 4.00" Idler Pulley for SCAG Cheetah Zero-Turn Mowers (Genuine SCAG OEM Part)
The SCAG S484128 4.00" Idler Pulley is a genuine OEM replacement component designed for select SCAG Cheetah commercial zero-turn mowers. This precision-engineered idler pulley maintains proper belt alignment and tension within the mower's drive or cutter deck system, ensuring efficient power transfer, reduced belt wear, and dependable mowing performance.
Manufactured from heavy-duty steel with precision-machined surfaces, the S484128 Idler Pulley is built to withstand constant belt contact, high rotational speeds, vibration, and demanding commercial mowing conditions. Engineered to SCAG's exact specifications, it provides an exact factory fit and long-lasting durability.
Product Details
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Manufacturer Part Number: S484128
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Brand: SCAG
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Part Type: Idler Pulley
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Pulley Diameter: 4.00 Inches
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OEM Status: Genuine SCAG OEM Part
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Material: Heavy-Duty Precision-Machined Steel
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System: Belt Drive System
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Function: Maintains proper belt tension and alignment
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Installation: Direct OEM replacement
Key Features
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Genuine SCAG OEM idler pulley
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4.00-inch precision-machined pulley
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Maintains proper belt tracking and tension
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Heavy-duty steel construction
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Reduces belt slippage and vibration
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Helps extend belt and pulley life
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Designed for demanding commercial mowing applications
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Exact OEM fit for reliable performance
Function
The SCAG S484128 Idler Pulley guides and tensions the mower belt to ensure efficient power transfer between the engine and driven components. Proper belt alignment minimizes premature belt wear, reduces vibration, and helps maintain consistent blade or drive system performance.
Replacing a worn or damaged idler pulley restores proper belt operation and helps protect related components such as belts, spindle assemblies, and bearings.
Compatible Models
The SCAG S484128 4.00" Idler Pulley fits select SCAG Cheetah zero-turn mowers, including:
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SCZ61RD-31FX
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SCZ61RD-921FX
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SCZ61V-27FX
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SCZ61V-29CV-EFI
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SCZ61V-31CV-EFI
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SCZ61V-31FX
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SCZ61V-32BV
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SCZ61V-32CV
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SCZ61V-34CV-EFI
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SCZ61V-34KH
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SCZ61V-35CV-EFI
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SCZ61V-36BV
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SCZ61V-37BV-EFI
Compatible with the SCAG serial number ranges specified for these models. Always verify your mower model, serial number, and illustrated parts diagram before ordering.
Who Is This For?
Ideal for:
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Professional landscapers
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Commercial mowing contractors
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Fleet maintenance technicians
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Equipment repair professionals
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Golf course maintenance crews
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SCAG Cheetah owners
Recommended Property Size
Perfect for:
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Commercial landscapes
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Large residential estates
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Parks
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Schools
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Athletic fields
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Golf courses
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Municipal properties
Pros
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Genuine SCAG OEM quality
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Exact 4.00-inch factory specifications
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Heavy-duty steel construction
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Maintains proper belt alignment
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Reduces belt wear and slippage
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Long-lasting commercial durability
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Direct OEM replacement
Cons
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Fits only compatible SCAG Cheetah models
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Idler bearings should be inspected during belt replacement
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Worn belts may reduce pulley service life
Comparison – Genuine SCAG OEM vs Aftermarket Idler Pulleys
Genuine SCAG S484128
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Exact OEM dimensions and fit
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Precision-machined steel construction
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Factory-approved belt alignment
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Superior durability under commercial use
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Longer bearing and belt life
Aftermarket Idler Pulley
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Dimensions and bearing quality may vary
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Material quality differs by manufacturer
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Reduced belt tracking accuracy
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Shorter service life under heavy workloads
Why Buy from Barry's Power Equipment?
Barry's Power Equipment is an authorized SCAG dealer offering genuine SCAG equipment, OEM replacement parts, and accessories.
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Authorized SCAG Dealer
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Genuine SCAG OEM parts
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Fast shipping throughout the USA
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Competitive pricing
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Expert customer support
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Trusted by professional landscapers and commercial mowing contractors
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Extensive inventory of SCAG idler pulleys, belts, spindles, bearings, hydraulic components, blades, and maintenance parts
Keep your mower performing at its best with the SCAG S484128 4.00" Idler Pulley. Designed specifically for compatible SCAG Cheetah zero-turn mowers, this genuine OEM replacement delivers precise belt control, exceptional durability, and the factory-quality performance professionals rely on every day.


