Product Description
Hydro-Gear ZC-AMBB-2L7B-1WPX - RH EZT Hydrostatic Transaxle
The Hydro-Gear ZC-AMBB-2L7B-1WPX RH EZT hydrostatic transaxle is a genuine OEM right-hand integrated drive unit designed for compatible zero-turn lawn mowers. This EZT (ZT-2200 series) hydrostatic transmission combines the pump, motor, and axle into a single sealed assembly, delivering smooth variable speed control and responsive steering performance on the right-hand side of the mower. Built to original Hydro-Gear specifications, this unit provides dependable torque output, efficient power transfer, and long service life in residential mowing applications.
What is this part & what does it do?
A hydrostatic transaxle uses hydraulic pressure to transfer engine power to the drive wheel. Instead of gears, it relies on a variable displacement pump and motor system to control speed and direction. This RH (right-hand) unit controls the mower’s right drive wheel, allowing independent wheel movement for zero-turn maneuverability. Replacing a worn or damaged right-hand transaxle restores smooth tracking, proper steering response, and consistent ground drive performance.
Specifications
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Part Number: ZC-AMBB-2L7B-1WPX
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Manufacturer: Hydro-Gear
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Series: EZT (ZT-2200)
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Type: Hydrostatic Integrated Transaxle
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Position: Right-Hand (RH)
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Application: Zero-turn mower drive system
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Configuration: Factory-built sealed assembly
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Condition: New OEM Unit
Features
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Genuine Hydro-Gear OEM RH EZT transaxle
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Designed specifically for right-hand installation
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Smooth variable speed hydrostatic control
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Integrated pump and motor system
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Sealed unit for consistent long-term reliability
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Direct replacement for specified mower models
Replaces / Supersedes
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ZC-AMBB-2L7B-1WPX is a complete Hydro-Gear factory configuration number
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Ariens 03872400
Used On
This RH EZT hydrostatic transaxle is used on select residential zero-turn mowers that specify configuration number ZC-AMBB-2L7B-1WPX for the right-hand drive position.
Commonly found on certain Ariens, Gravely, Husqvarna, and similar residential zero-turn platforms depending on model and serial range.
Fitment varies by manufacturer, model, and build code.
Please verify your mower model and existing transaxle configuration before ordering.
Need assistance? Please email Orders@mowpart.com
