M1030 AEROSTAR HYDRODYNE ACCUMULATOR PISTON/SEAL KIT

The **Marsh Brothers M1030 Aerostar Hydrodyne Accumulator Piston/Seal Kit** is an **FAA- and TCCA-approved upgrade** for hydraulic accumulators on applicable Piper Aerostar models. This kit replaces the OEM aluminum piston and multiple-part seal assembly with a **non-metallic piston made from Marsh Brothers’ proprietary AeroTough® GF polymer** and advanced **AeroLas®-Flex (Thorseal®) dynamic seals**. This design eliminates metal-on-metal contact, reduces seal failure modes, and extends the life and reliability of the accumulator. The kit simplifies the accumulator internals by reducing the part count from five under the OEM design to just three under the Marsh Brothers design, helping streamline installation and future maintenance. --- ## Applications - Upgrade/replacement of hydraulic accumulator piston and seal system in Aerostar Hydrodyne accumulators - Suitable for Aerostar aircraft models covered under Marsh Brothers Supplemental Type Certificate (STC) — replacing original piston and dynamic seal assemblies - Ideal for operators looking to improve reliability, prevent bore scratches or seal failures, and reduce maintenance complexity --- ## Why CJ Aerospace? CJ Aerospace supplies trusted aviation-approved hydraulic system upgrades and components. We offer fast local delivery, expert technical support, and industry-proven parts to help keep your aircraft systems safe and compliant. - 🇦🇺 **Australian-owned & operated** - 📦 **Stocked locally in Australia for fast dispatch** - 🔧 **Expert technical support for installation and maintenance** - 🛠️ **Used by leading MROs & aviation operators** > ✉️ [Contact us sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need installation guidance or certification documentation? Contact CJ Aerospace for expert assistance.

- **Non-metallic AeroTough® GF piston** — eliminates risk of bore scratching and wear associated with metal pistons - **Advanced AeroLas®-Flex (Thorseal®) dynamic seals** — stable over wide temperature ranges, resistant to swelling, shrinking, or binding - **Reduced part count** — from 5 OEM parts down to 3, simplifying assembly and maintenance - **Approved under STC** for Aerostar hydraulic accumulators — meets FAA and TCCA certification standards - **Improved longevity and reliability** — designed to avoid common failure modes like seal leakage or piston sticking