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

Part Number: 09158700
Description: Transaxle ZT-3100, Left Hand (LH)
Component Type: Hydrostatic transaxle / drive unit
Manufacturer Platform: Hydro-Gear ZT-3100
Orientation: Left-hand (LH)
OEM Status: Genuine Ariens / Gravely replacement part
Condition: New

Key Benefits

Provides smooth hydrostatic drive and speed control
Integrated pump and motor for compact, efficient design
Heavy-duty construction for extended service life
Maintains correct left-side drive performance
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.