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Description
07318900 – Pump Sheave (.592″ ID × 4.345″ OD) | Gravely / Ariens OEM Part
The 07318900 Pump Sheave is a genuine OEM drive component used in the ground drive, transmission, and traction clutch linkage systems on a wide range of Gravely and Ariens commercial and walk-behind equipment. This sheave mounts to the pump or drive shaft and transfers engine power efficiently through the belt system to ensure smooth, reliable machine movement.
Manufactured to exact OEM specifications, this sheave ensures proper belt alignment, correct drive ratios, and long service life under demanding operating conditions.
Product Details
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OEM Part Number: 07318900
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Description: Pump Sheave
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Inside Diameter (ID): 0.592″
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Outside Diameter (OD): 4.345″
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Function: Belt drive power transfer
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Application Area: Ground drive / transmission / traction linkage
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Material: Heavy-duty steel
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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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Maintains correct belt speed and drive ratio
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Ensures smooth traction and ground drive engagement
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Durable steel construction resists wear and deformation
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Helps prevent belt slippage and premature belt failure
Common Applications
This pump sheave is commonly used in:
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Ground drive systems
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Transmission assemblies
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Traction clutch and drive linkages
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Pump-driven belt systems
Fits Gravely & Ariens Equipment (Partial List)
Used across multiple platforms, including but not limited to:
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Pro 300 Series
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Promaster® 200 / 300
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Compact-Pro® 34 (Side & Rear Discharge)
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PM 34M / PM 44M
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HR / HE Pro-Steer Walk-Behind Models
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ZT 2044 / ZT 2348 Series
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Power Heads and Fixed / Float Deck Walk-Behinds
⚠️ Fitment depends on model and serial number range. Always verify using your equipment’s Illustrated Parts Diagram (IPD).
Why Use a Genuine OEM Sheave?
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Ensures exact bore size and pulley diameter
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Prevents belt misalignment and vibration
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Preserves factory ground speed and traction response
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Extends belt, bearing, and transmission life
