Aerostar Turbo Cross-Shaft Bearing Block Kit

The MBA Aerostar Turbo Cross-Shaft (TCS) Bearing Block Kit is designed to save time and reduce maintenance with long-life polymer bearings. These advanced technology bearings eliminate premature wear of the cross-shaft and last longer than the OEM solution.

Exhaust pressure pulses from the engine cause oscillations at the turbo’s wastegate butterfly resulting in vibration at the cross-shaft bearing blocks and lead to premature wear of the bearings and end shafts.

With high-temperature self-lubricating polymer bearings securely carrying the turbo cross-shaft at both ends, without the need for any lubrication, premature wear is eliminated and maintenance is reduced saving you time and keeping you flying longer.

An essential part of the Aerostar engine, the proper functioning of the turbo cross-shaft is critical. Marsh Brothers’ new Aerostar TCS Bearing Block Kit helps resolve costly maintenance issues and lasts longer than the OEM components through the use of revolutionary design and self-lubricating polymer bearings.

• Saves Time – The MBA Aerostar TCS Kit reduces a pilot’s need to actively manage the manifold pressures, through the throttle levers, by reducing worn cross-shaft bearings with self-lubricating polymer bearings.
• Reduces Maintenance – due to its self-lubricating and high-temperature cross shaft bearings, which last more than 3x the OEM metal bearings, the MBA Aerostar TCS Bearing Kit reduces aircraft lifecycle maintenance costs.
• All-in-One Kit – The MBA Aerostar TCS Bearing Block Kit is all that is needed for one Aerostar engine. No additional components, lubrication or parts are required.
• Longer Life - Based on field trials, the MB Aviation repair kit will last at least 3x longer than the OEM metal bearing and shows no signs of wear..

Marsh Brothers Aviation

Initially conceived as a Repair Design Approval (RDA), MBA’s TCS solution has been automatically adopted by the EASA and FAA under the Canadian approval.
TCCA RDA RA23-041D

• Applicable to turbo-charged Piper Aerostar aircraft only
• Kit is only compatible with OEM cross shaft PN 300035-527 with replaceable end shafts (NOTE: Kit includes new high-strength stainless steel end shafts)
• Approved for installation on U.S, Canadian, and European registered aircraft, Approval number C-RA23-041/D (TCCA).
  

Kit Components:

Additional Required Components Not Included in the Kit:

Installation Instructions