Product Description
Ariens 03872400 - Hydrostatic EZT Transaxle RH
(Hydro Gear: ZC-AMBB-2L7B-1WPX)
The Ariens 03872400 Hydrostatic EZT transaxle is a genuine OEM right-hand drive unit designed for use on compatible Ariens zero-turn mowers. This hydrostatic EZT transmission delivers smooth, responsive ground speed control and precise maneuverability by independently powering the right drive wheel. Built to original equipment specifications, it ensures proper fit, reliable performance, and long service life in demanding mowing conditions.
What is this part & what does it do?
A hydrostatic transaxle combines the hydraulic transmission and axle assembly into a single unit. The EZT system allows variable speed control without shifting gears by using hydraulic fluid pressure to drive the wheel motor. The right-hand (RH) unit controls the mower’s right drive wheel, enabling zero-turn capability and accurate steering control. Replacing a worn or failing transaxle restores smooth operation, proper tracking, and consistent ground drive performance.
Specifications
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Part Number: 03872400
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Part Type: Hydrostatic EZT Transaxle
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Position: Right-Hand (RH)
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Brand: Ariens OEM
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Drive Type: Hydrostatic
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Series: EZT
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Application: Zero-turn mower drive system
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Condition: New OEM Replacement
Features
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Genuine OEM Ariens hydrostatic drive unit
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EZT hydrostatic system for smooth variable speed control
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Designed specifically for right-hand installation
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Restores proper steering and ground drive performance
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Heavy-duty construction for long service life
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Direct-fit replacement for specified Ariens models
Replaces / Supersedes
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03872400 is the current OEM part number
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Hydro Gear: ZC-AMBB-2L7B-1WPX
Used On
This Hydrostatic EZT RH transaxle is used on select Ariens zero-turn mower models that require part number 03872400 in the right-side drive position.
Fitment varies by model and serial range.
Please verify with your exact model and serial number before ordering.
Need assistance? Please email Orders@mowpart.com
