72994 Charge Pump Gerotor Seal Kit for Hydro-Gear ZT-2800, ZT-3100, ZM Series

72994 Charge Pump Gerotor Seal Kit for Hydro-Gear

This repair set services the hydraulic charge pump assembly to maintain system pressure and prevent fluid loss, replacing part number 72994.

Overview

The 72994 Charge Pump Gerotor Seal Kit for Hydro-Gear provides the specific components required to reseal the pump interface on high-performance transaxles. Maintaining a functional 72994 Charge Pump Gerotor Seal Kit for Hydro-Gear is critical for preventing internal cavitation and ensuring consistent drive power during operation. This kit is intended for technicians and equipment owners performing maintenance on hydrostatic drive systems to stop active leaks or restore lost efficiency.

Built For Performance

• Precision-molded elastomer O-rings designed to withstand high hydraulic temperatures.
• Gaskets engineered to provide a secure, leak-proof seal at the charge pump housing.
• Components manufactured to strict tolerances for reliable fitment within the pump assembly.
• Chemical-resistant materials compatible with standard hydrostatic drive fluids.
• Comprehensive kit includes the primary sealing elements for a standard gerotor service.

Fits These Machines

• for Hydro-Gear ZT-2800
• for Hydro-Gear ZT-3100
• for Hydro-Gear ZM Series

On-The-Job Use

• Restores drive performance in residential and commercial zero-turn mowers.
• Eliminates hydraulic fluid weeping from the transaxle charge pump area.
• Prevents air ingestion into the hydraulic circuit during heavy mowing cycles.
• Facilitates the overhaul of worn hydrostatic units to extend equipment life.

Specs At A Glance

Good To Know

Q: How can a leak at the charge pump affect mower performance? A: A failing seal allows fluid to escape and air to enter, which often results in jerky movement or a total loss of drive power as the transaxle warms up.

Q: Are there any special requirements for installing these seals? A: Absolute cleanliness is required during the installation process because even small amounts of dirt can damage the internal hydraulic components of the transaxle.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.