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Description
05266800 – WLDMT, IDLER ARM (Genuine OEM Ariens / Gravely Part)
The 05266800 WLDMT, Idler Arm is a genuine OEM Ariens / Gravely welded idler arm assembly designed for proper belt tensioning and alignment within the clutch belt and pivoting idler system on Pro-Stance stand-on mowers. This component plays a critical role in maintaining correct belt tracking, clutch engagement, and smooth power transfer from the engine to the mower deck.
Manufactured to Ariens and Gravely factory specifications, the 05266800 idler arm weldment features heavy-duty steel construction and precise geometry to withstand continuous belt load, vibration, and commercial mowing conditions. Using a genuine OEM idler arm helps prevent premature belt wear, slippage, and drivetrain stress.
Key Details
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Manufacturer Part Number: 05266800
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Part Name: WLDMT, Idler Arm
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Brand: Ariens / Gravely
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Part Type: Idler Arm Weldment
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Function: Belt tensioning and belt alignment
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Application: Clutch belt and pivoting idler system
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Construction: Heavy-duty welded steel
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Installation: Direct OEM replacement
Compatibility
The 05266800 idler arm weldment is used on Gravely Pro-Stance stand-on mower models, appearing in the Clutch Belt and Pivoting Idler assemblies across multiple production ranges.
Common compatible models include:
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Gravely Pro-Stance 36
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Gravely Pro-Stance 32
This part is used across early, mid, and later serial number ranges, including:
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Pro-Stance 36 (models 994149 – all listed production ranges)
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Pro-Stance 32 (models 994157 – all listed production ranges)
The 05266800 WLDMT, Idler Arm ensures OEM-level belt control, consistent clutch operation, and long-term durability for Ariens and Gravely Pro-Stance commercial stand-on mowers.


