Molloparts 4Pcs Transmission Filter – ZT-5400 Axle
AUD 53.42 on Amazon.com.au (as of October 22, 2026) View details ↗
This **Molloparts transmission filter kit** is a direct replacement for the **ZT-5400 series transaxle assemblies** found in a range of zero-turn mowers, including models from **Ferris, Scag, Gravely, Hydro Gear, Husqvarna, and Bad Boy**. The kit includes **four high-quality transmission filters** (part number **3511W1168Q**) along with **four O-rings** to ensure a proper seal and prevent leaks during installation. Designed to match OEM specifications, these filters are compatible with specific part numbers across multiple brands, such as **Ferris 5101987, Gravely 21548300, and Scag HG71943**, among others.
Before purchasing, **double-check the listing images and part numbers** against your mower’s transaxle to confirm compatibility—this kit is tailored for **ZT-5400 transaxle assemblies** only. Whether you’re servicing a **Ferris F210Z, Scag Cheetah series, or Gravely 992184 model**, this filter set provides a reliable upgrade to maintain smooth operation and extend the life of your equipment. The filters are **not original manufacturer parts** but are engineered to perform comparably, offering a cost-effective solution for routine maintenance.
Each filter measures **66mm in height** with an **outer diameter of 65mm**, ensuring a precise fit for the specified transaxle models. The package weighs **283g** and includes all necessary components for a straightforward replacement—no additional tools or adapters are required. For peace of mind, Molloparts stands behind their products with responsive customer support to address any installation or compatibility queries.
| Package contents | 4 × transmission filters + 4 × O-rings |
|---|---|
| Filter height | 66mm |
| Outer diameter | 65mm |
| Item weight | 283g |
| Compatible transaxle series | ZT-5400 (Ferris, Scag, Gravely, Hydro Gear, Husqvarna, Bad Boy) |
| Manufacturer part number | 3511W1168Q |



