Hydro-Gear Transaxle Oil Service Kit for ZT2800 ZT3100 ZT3200 ZT3400 — 5 qt Oil, 2 OEM Filters, Pump

Genuine Hydro‑Gear Transmission Oil Service Kit (Part #72750) supplies everything needed to refresh the transaxle on compatible ZT series lawn mowers.

This factory-original service kit bundles five quarts of Hydro‑Gear transaxle oil with two OEM oil filters, a service fitting and a pump to make a complete transmission maintenance job quick and correct. It’s a single, ready-to-use package built to the same specifications as the parts used by manufacturers, so you avoid mismatched fluids or low-quality filters that can shorten gearbox life. The kit ships individually in a compact box weighing about 12 pounds and is sized to fit the transaxle service points of several ZT mower models.

Which mower models will this service kit fit?

The Hydro‑Gear 72750 kit is designed to match the service requirements for a range of Hydro‑Gear ZT transaxles. Confirm fitment by checking your owner’s manual or the parts diagram for your machine before ordering. Using the correct kit prevents compatibility issues and ensures the transaxle receives the proper oil grade and filtration.

• Compatible with ZT2800, ZT3100, ZT3200 and ZT3400 models
• Contains OEM-specified oil and filters sized for these transaxles
• Sold as one complete kit for a single transaxle service

What is included and why does each item matter?

Hydro‑Gear packages the precise components you need so you don’t have to mix parts from different sources. The transaxle oil protects internal gears and bearings, the oil filters capture contaminants, the fitting provides a clean service port connection and the pump makes fluid transfer easier and less messy. These elements together reduce service time and help maintain original equipment performance.

• 5 quarts of genuine Hydro‑Gear transaxle oil — correct viscosity and additive package
• 2 genuine Hydro‑Gear oil filters — ensure proper filtration and fit
• 1 service fitting and 1 pump — for controlled, clean oil removal and refill

How will this kit affect my mower’s maintenance routine?

Using the factory kit streamlines routine transmission maintenance by giving you the exact parts specified for a proper service. That means fewer steps to verify compatibility, less risk of cross-contamination from wrong fluids, and an easier refill process thanks to the included pump and fitting. Regular transaxle service using OEM parts supports predictable performance between major repairs.

• Reduces service time with matched parts and simple refill tools
• Helps prevent premature wear through correct oil and filtration
• Minimizes fluid leaks and contamination during servicing

Are there installation tips or checks to perform when using this kit?

Follow the mower manufacturer’s service instructions and safety precautions for oil changes. Warm the transaxle slightly before draining for faster flow, inspect seals and mounting points while components are accessible, and verify oil level after refill and a short test run. If you’re unsure, a certified service technician can complete the job using the kit’s OEM parts.

• Warm transaxle for easier drain, then fully drain old oil
• Replace filters and inspect gaskets and hoses during service
• Refill with the included oil, then run and recheck level

Who is this for: This Hydro‑Gear transmission oil service kit is aimed at lawn care professionals, fleet managers and DIY owners who operate ZT2800, ZT3100, ZT3200 or ZT3400 machines and want an OEM-quality, time-saving solution for routine transaxle maintenance. If you value correct fitment, factory-specified oil and filters, and a tidy service experience with minimal parts sourcing, this kit provides a straightforward, manufacturer-approved option.