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Description
59208400 Front Fork — ZTHD Gravely OEM Replacement Part
The 59208400 Front Fork is a genuine Gravely OEM replacement steering and suspension component designed for Gravely ZTHD (Zero-Turn Heavy-Duty) series mowers. This heavy-duty front fork assembly supports smooth steering response and rugged durability in commercial-grade mowing conditions. Built to OEM specifications, it ensures proper fit, long-lasting performance, and reliable handling for your Gravely ZTHD mower.
Product Details
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Item Number: 59208400
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Brand: Gravely / Ariens Co. OEM
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Part Type: Front Fork Assembly
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Application: Gravely ZTHD Series Zero-Turn Mowers
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Material: Heavy-Duty Steel (OEM-Grade)
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Condition: New Genuine OEM Replacement Part
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Intended Use: Provides steering support and front wheel alignment
Function
This front fork assembly is designed to:
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Support the front wheel and steering mechanism
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Provide durable, stable handling under heavy loads
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Ensure smooth steering response during mowing
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Replace worn, bent, or damaged front fork components
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Maintain proper front suspension geometry
Compatibility
Fits Gravely ZTHD series zero-turn mowers, including but not limited to:
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Gravely ZTHD 44
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Gravely ZTHD 48
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Gravely ZTHD 52
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Gravely ZTHD 60
⚠️ Always verify your mower’s model and serial number before ordering to ensure correct fitment.
Installation / Usage
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Park the mower on a flat, secure surface and disengage all moving parts
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Lift front end safely and support with jack stands
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Remove front wheel and associated hardware
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Detach the old front fork assembly
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Install the new 59208400 front fork, aligning mounting points
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Reinstall wheel, bearings, and hardware per OEM torque specs
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Check steering movement and alignment before use
Suggested Maintenance
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Periodically inspect for bent or cracked components
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Check bearings and bushings for wear
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Keep hardware tightened to specs
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Clean debris after heavy use
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Replace worn parts promptly for safe operation
Notes / Equivalent References
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Gravely 59208400 is a direct OEM replacement; aftermarket forks may vary in strength or fit.





