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Description
09158700 – Transaxle ZT-3100 LH (Genuine Ariens / Gravely OEM Part)
The 09158700 ZT-3100 Left-Hand Transaxle is a genuine Ariens / Gravely OEM hydrostatic drive unit designed to deliver smooth, reliable power transfer and precise ground speed control on zero-turn mowers. This left-hand (LH) transaxle integrates the hydrostatic pump and drive motor into a single compact assembly for efficient performance and durability.
Built to original Ariens / Gravely specifications and utilizing the proven Hydro-Gear ZT-3100 platform, this transaxle ensures consistent traction, responsive control, and long service life in demanding residential and commercial mowing conditions.
Product Details
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Part Number: 09158700
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Description: Transaxle – ZT-3100, Left Hand (LH)
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Component Type: Hydrostatic transaxle / drive unit
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Manufacturer Platform: Hydro-Gear ZT-3100
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Orientation: Left-hand (LH)
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OEM Status: Genuine Ariens / Gravely replacement part
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Condition: New
Key Benefits
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Provides smooth hydrostatic drive and speed control
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Integrated pump and motor for compact, efficient design
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Heavy-duty construction for extended service life
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Maintains correct left-side drive performance
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Direct OEM replacement for exact fit and reliability
Applications
Commonly used as the left-hand drive transaxle on Ariens and Gravely zero-turn mowers equipped with Hydro-Gear ZT-3100 systems. Applications typically include mid- to heavy-duty ZT and ZT XL series models.
(Always verify correct left-hand / right-hand orientation and confirm compatibility using your model and serial number before ordering.)
Replacing a worn or damaged transaxle with the 09158700 Ariens / Gravely OEM ZT-3100 LH transaxle helps restore smooth operation, consistent tracking, and dependable performance, keeping your mower operating at peak efficiency.
