Marsh Brothers M1030 AEROSTAR HYDRODYNE ACCUMULATOR PISTON/SEAL KIT

The **Marsh Brothers Aviation Aerostar Hydraulic Accumulator Piston and Seal Upgrade Kit** (P/N **M1030**) allows an Aerostar hydraulic accumulator to be upgraded with a fully non-metallic piston and improved dynamic seals. The kit includes an **AeroTough® GF non-metallic piston**, designed to eliminate the risk of the piston scratching the cylinder bore during normal operation. The sealing material is designed to remain stable across a wide range of operating temperatures without swelling, shrinking or binding. The Marsh Brothers Aviation design reduces the assembly from **five parts in the OEM configuration to three parts**, helping simplify the hydraulic accumulator assembly. The upgrade replaces the OEM aluminium piston, nitrile rubber O-ring, back-up rings and PTFE rider ring with an AeroTough® GF piston and two AeroLas®-Flex piston seals. ### Kit Contents | Part Number | Description | Quantity | |---|---|:---:| | MBA10073-1 | AeroTough® GF piston | 1 | | MBA10076-1 | AeroLas®-Flex piston seal | 2 | --- ## Applications The **M1030** kit is designed to upgrade **one Hydrodyne hydraulic accumulator** installed on an Aerostar aircraft. --- ## Why CJ Aerospace? CJ Aerospace supplies aviation components backed by technical knowledge and responsive customer support: - 🇦🇺 **Australian-owned and operated** - 📦 **Efficient Australia-wide supply and delivery support** - 🔧 **Technical guidance on product selection and compatibility** - ✈️ **Supporting aircraft operators, maintainers and aviation professionals** > ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help confirming whether this kit is suitable for your hydraulic accumulator? Our team is ready to assist.

- Fully non-metallic **AeroTough® GF piston** - Helps prevent scratching of the accumulator cylinder bore - Improved dynamic sealing design - Sealing material remains stable across a wide operating-temperature range - Designed to resist swelling, shrinking and binding - Replaces the OEM aluminium piston and conventional sealing components - Reduces the assembly from five parts to three - Simplifies the hydraulic accumulator assembly - One kit upgrades one Hydrodyne hydraulic accumulator