Description
07320800 Flat Idler Pulley (.377 4.00 .96, Poly) | Gravely / Ariens OEM Part
The 07320800 Flat Idler Pulley is a genuine OEM Gravely / Ariens polymer idler pulley designed for use in hydrostatic pump drive and deck belt systems on select commercial zero-turn and ProMaster models. This flat idler pulley helps maintain proper belt tension, alignment, and smooth power transfer in high-load applications.
Its poly (composite) construction reduces noise, resists corrosion, and delivers long service life while minimizing belt wear.
Product Details
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OEM Part Number: 07320800
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Description: Flat Idler Pulley (Poly)
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Bore Size: 0.377
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Outside Diameter: 4.00
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Width: 0.96
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Pulley Type: Flat
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Material: Heavy-duty polymer (composite)
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Function: Belt tensioning and guidance
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Condition: New, genuine OEM replacement
Features & Benefits
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Genuine Gravely / Ariens OEM part for precise fit
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Lightweight poly construction reduces vibration and noise
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Corrosion-resistant for long-term durability
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Maintains proper belt tracking and tension
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Helps prevent premature belt wear and slippage
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Ideal for hydrostatic pump and deck belt systems
Common Applications
This idler pulley is commonly used in:
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Hydrostatic pump drive systems
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Deck belt idler assemblies
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Commercial zero-turn mower belt routing
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ProMaster belt and pump drive configurations
Fits Gravely & Ariens Equipment (Partial List)
Used on select models including:
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ZT Series (42 Deck Belt Idler Kit 515064)
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ProMaster MX / HX / H Series
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PM252MXDZ 52 Deck
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PM260MXDZ / PM260M / PM260H 60 Deck
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PM272H / PM272HXDZ 72 Deck
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Rear Discharge ProMaster Models
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PM252H, PM260H, PM272H (selected serial ranges)
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Model configurations and serial number ranges vary. Always confirm fitment using your machines Illustrated Parts Diagram (IPD).
Why Choose a Genuine OEM Poly Idler Pulley?
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Ensures correct pulley diameter and belt geometry
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Reduces stress on belts and hydrostatic components
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Delivers quieter operation compared to steel pulleys
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Maintains factory performance and reliability
