Description
08337900 Extension Spring (Genuine Ariens / Gravely OEM Part)
The 08337900 Extension Spring is a genuine Ariens / Gravely OEM mower deck component designed to maintain proper belt tension and idler operation within the mower deck drive system. This spring plays a critical role in ensuring smooth belt tracking, consistent blade engagement, and reliable cutting performance.
Manufactured to original Ariens / Gravely specifications, this heavy-duty extension spring provides dependable tension under continuous load, helping reduce belt slippage, uneven cutting, and premature wear on deck components.
Product Details
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Part Number: 08337900
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Description: Extension Spring
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Component Type: Mower deck / belt tension spring
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OEM Status: Genuine Ariens / Gravely replacement part
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Condition: New
Key Benefits
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Maintains correct mower deck belt tension
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Supports smooth idler pulley movement
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Helps prevent belt slippage and uneven blade speed
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Durable spring steel construction for long service life
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Direct OEM replacement for exact fit and performance
Applications
Commonly used in mower deck belt, idler, and blade drive systems on Ariens and Gravely zero-turn mowers, including but not limited to:
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ZT Series (40″, 44″, 48″, and 52″ decks)
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Briggs & Stratton and Kohler engine configurations
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Early and mid-production serial number ranges
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Deck assemblies utilizing spring-loaded idler systems
(Always confirm compatibility using your model and serial number.)
Replacing worn or stretched deck springs with the 08337900 Ariens / Gravely OEM extension spring helps restore proper belt tension, improves cutting consistency, and ensures your mower deck operates as designed.
