ATA 85 — Reciprocating Engine

19,883 parts classified under this chapter

Reliability rollup

91%Median scrap propensity

2,637 parts · 5,796 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
850710	OIL SEAL	—	—	85	Consumables / Hardware
850940	SEAL	—	—	85	Consumables / Hardware	PMA
850991R	CYLINDER HEAD	—	—	85	Engine Accessories	OEM
852-D	Gasket - Accessory Drive Housing	—	—	85	Engine Accessories	OEM
852-D	Gasket - Accessory Drive Housing	—	—	85	Engine Accessories	OEM
854116	EXHAUST VALVE	—	—	85	unknown	OEM
854118	EXHAUST VALVE	—	—	85	Engine Accessories	OEM
854381	ROCKER	—	—	85	Electromechanical	PMA
859989-10PR	Ring Piston	Precision Ring, Inc.	DC-10-30 DC-10-30F+2	85	Engine Accessories	PMA
859989-20PR	Ring Piston	Precision Ring, Inc.	King Air 200 747-100	85	Engine Accessories	PMA
859989-33	Ring, Piston	—	—	85	Engine Accessories	OEM
859989-33PR	Ring, Piston	Precision Ring, Inc.	—	85	Engine Accessories	PMA
859989-4 859989-41	Ring, Piston	—	King Air 200 747-100+3	85	Engine Accessories	OEM
859989-4 859989-41	Ring, Piston	—	King Air 200 747-100+3	85	Engine Accessories	OEM
859989-4PR	Ring Piston	Precision Ring, Inc.	747-100 747-200+2	85	Engine Accessories	PMA
859989-67	Ring-Piston	—	737-900 737-900ER	85	Engine Accessories	OEM
859989-67	Ring-Piston	—	737-900 737-900ER	85	Engine Accessories	OEM
859989-67WE	Ring-Piston	Wencor, LLC	737-900 737-900ER	85	Engine Accessories	PMA
86-10001-( )	Wastegate Actuator Drain Line, TSIO-520 Continental	Machen, Inc.	C206 Stationair C210 Centurion	85	Engine Accessories	PMA
861115	DIAPHRAGM	—	—	85	unknown	OEM
86203-004	FRONT LEFT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-004	FRONT LEFT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-005	REAR LEFT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-005	REAR LEFT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-010	REAR RIGHT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-010	REAR RIGHT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-069	RIGHT FRONT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
86203-069	RIGHT FRONT ROCKER COVER	—	PA-44 Seminole	85	Engine Accessories	OEM
87-10003-( )	Air Inlet Duct Assembly	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
87-10005-( )	Induction Tube Assemblies	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
87-10007-( )	Intercooler Mounts	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
87-10008-( )	Engine Baffling Assemblies	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
87-10010-( )	Induction Casting	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
87-10011-( )	Induction Casting	Machen, Inc.	PA-31 Navajo	85	Engine Accessories	PMA
8711+10	Spacer-Rear Blower Shaft	—	—	85	Engine Accessories	OEM
8711+20	Spacer-Rear Blower Shaft	—	—	85	Engine Accessories	OEM
8713894	Stud, 5/16-18 x 5/16-24	—	—	85	Engine Accessories	OEM
87208	Guide, Exhaust Valve	—	—	85	Engine Accessories	OEM
87208	Guide, Exhaust Valve	—	—	85	Engine Accessories	OEM
8760	WASHER	—	—	85	Consumables / Hardware	PMA
88-10005-( )	Induction Tube Assemblies	Machen, Inc.	—	85	Engine Accessories	PMA
881831	LIFTER	—	—	85	unknown	OEM
881832	LIFTER	—	—	85	unknown	OEM
886354	CRANKCASE	—	—	85	unknown	OEM
887051	CRANKSHAFT	—	—	85	Engine Accessories	PMA
888364	CRANKCASE	Rotax	—	85	Engine Accessories
88962	GASKET	—	—	85	Consumables / Hardware	OEM
89-10007-( )	Induction Castings	Machen, Inc.	—	85	Engine Accessories	PMA
89-10008-( )	Modified Intercooler Assembly	Machen, Inc.	—	85	Engine Accessories	PMA
890419	CYLINDER	—	—	85	unknown