Product Description
The Hydro-Gear 321-08 310-0800 Integrated Hydrostatic Transmission (IHT) is a genuine OEM replacement transaxle engineered to restore smooth operation, dependable power delivery, and reliable performance to compatible riding lawn mowers and lawn tractors. Built on Hydro-Gear's proven 310-0800 Integrated Hydrostatic Transmission (IHT) platform, this self-contained transaxle combines the hydraulic pump, motor, differential, and final drive into one compact, durable assembly. Designed to provide infinitely variable forward and reverse speed control, the 321-08 delivers smooth acceleration, consistent traction, and dependable performance while meeting Hydro-Gear's exact OEM manufacturing standards. The 310-0800 IHT platform features a 10cc variable-displacement axial piston pump paired with a 21cc fixed-displacement motor, providing efficient power transfer and long-lasting reliability.
Whether you're replacing a worn hydrostatic transmission or restoring your tractor's drive system to factory performance, the Hydro-Gear 321-08 delivers OEM-quality performance, efficient operation, and extended service life. Factory-filled and tested for dependable operation, this integrated transaxle is designed to minimize maintenance while maximizing productivity. For the best results, inspect the drive belt, linkage, cooling fan, and axle components during installation, and follow Hydro-Gear's recommended service procedures. Always verify your equipment's model and serial number before ordering, as Hydro-Gear hydrostatic transmissions are application-specific and must match the original part number exactly.
