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Description
11657 – Idler Pulley 3/8″ (Replaces SCAG 483216)
The 11657 Idler Pulley is a high-quality replacement idler pulley, engineered to match the fit and function of SCAG part number 483216. Designed with a 3/8″ bore, this pulley is used to maintain proper belt tension and ensure smooth belt tracking in SCAG lawn and turf equipment.
This idler pulley plays a critical role in the belt drive system by guiding the belt, reducing vibration, and helping prevent belt slippage or premature wear. Manufactured from durable materials and designed for balanced rotation, it delivers dependable performance in demanding mowing conditions.
Product Details
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Part Number: 11657
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Replaces OEM: SCAG 483216
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Brand: Aftermarket Replacement (SCAG compatible)
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Part Type: Idler Pulley
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Bore Size: 3/8″
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System: Belt drive / tensioning system
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Function: Guides belt and maintains proper tension
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Material: Heavy-duty steel pulley with bearing
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Condition: New replacement part
Function
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Maintains correct belt tension
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Ensures smooth belt tracking
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Reduces vibration and belt wear
Compatible With SCAG Equipment
This idler pulley is used on select SCAG mower decks and drive systems that specify:
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SCAG idler pulley 483216
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3/8″ bore idler pulley
Common applications include:
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Mower deck belt systems
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Drive belt and tensioner assemblies
(Exact compatibility depends on SCAG model and deck configuration.)
How It’s Used
The idler pulley mounts to a tensioner arm or bracket, contacting the belt to maintain proper tension during operation. As the belt moves, the pulley rotates freely to allow smooth, controlled belt movement through the system.
Correct alignment and secure mounting are essential for proper belt performance and long service life.
Suggested Maintenance
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Inspect the idler pulley during belt service
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Check for bearing noise, wobble, or rough rotation
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Replace the pulley if excessive wear or vibration is present
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Ensure mounting hardware is tight and properly aligned
The 11657 Idler Pulley (3/8″ bore) is a reliable replacement for SCAG 483216, used in belt drive systems where durability, smooth rotation, and consistent belt tension are essential.
