Marsh Brothers M-00-1003-1 CLEVELAND/PARKER BRAKE MASTER SEAL KIT

The **Marsh Brothers Aviation Brake Master Cylinder Upgrade/Repair Kit** (P/N **M-00-1003-1**) contains the O-rings, seals and hardware required to refurbish and upgrade compatible brake master cylinders. The kit features Marsh Brothers’ proprietary **piston-rod lip seal**, manufactured from an advanced self-lubricating elastomeric polymer. Its lip-seal design offers improved performance and durability compared with a traditional rubber O-ring. The kit allows the compatible brake master cylinder to be rebuilt, removing the need to purchase a complete replacement cylinder. A seal-expansion bullet is supplied to assist with installation. The **piston is not included** in this kit. The kit does not fit brake master cylinders manufactured by **Gerdes or Paramount**. The AeroLas™-Flex seal material is not compatible with phosphate-ester hydraulic fluid, commercially known as **Skydrol**. Exposure to this fluid may damage the seals. ### Kit Contents | Item | Component | Quantity | |---:|---|---:| | 1 | Internal retaining ring | 1 | | 2 | Spring seat/wiper washer | 1 | | 3 | O-ring – piston head/gland static seal | 1 | | 4 | Lip seal – piston rod/dynamic seal | 1 | | 5 | End gland | 1 | | 6 | O-ring – piston head bypass | 1 | | 7 | Snap ring | 1 | | 8 | Star-lock washer | 1 | | 9 | Flat washer | 1 | | 10 | Nut | 1 | --- ## Applications The **M-00-1003-1** kit is designed for compatible brake master cylinders installed on selected: - **Cirrus SR20, SR22 and SR22T aircraft** - **Mooney M20 series aircraft** - **Piper Aerostar PA-60 series aircraft** Eligible Cirrus and Piper Aerostar installations use OEM brake master cylinder P/N **14269-001 or 10-24C**. Eligible Mooney installations use OEM brake master cylinder P/N **10-24D**. Compatibility depends on the specific aircraft model, serial number and installed brake master cylinder. --- ## Why CJ Aerospace? CJ Aerospace supplies approved aviation components backed by technical knowledge and responsive customer support: - 🇦🇺 **Australian-owned and operated** - 📦 **Efficient Australia-wide supply and delivery support** - 🔧 **Technical guidance on part 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 compatibility with your aircraft or brake master cylinder? Our team is ready to assist.

- **FAA, TCCA and EASA approved** - Eliminates risks associated with typical failure modes of traditional O-rings in dynamic seal applications - Marsh Brothers’ proprietary elastomeric polymer lip seal offers improved low-pressure sealing performance and overall cold-weather performance - Provides the ability to rebuild the brake master cylinder without purchasing a replacement cylinder - Easy to install, with a seal-expansion bullet included - Long-lasting performance