Beech Brake Master Cylinder Upgrade/Repair Kit for King Air / 1900 / Model 99 with 90-380001-29 or 90-380001-33 Master Cylinders

Marsh Brothers’ Brake Master Cylinder upgrade & repair kit is a proactive solution that will eliminate the risk of failure due to leaks at the piston rod seal. By eliminating typical O-ring failure modes, this upgrade kit will increase mean time between unscheduled maintenance events keeping your aircraft in the air longer, while reducing maintenance costs associated with your brake master cylinder. Like all Marsh Brothers products, our glands and seals are developed to last for the long haul.