ATA 85 — Reciprocating Engine

20,859 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
61662 M10 P10	Bearing, Rod Connecting	—	—	85	Engine Accessories	OEM
61662 P10	Bearing, Rod Connecting	—	—	85	Engine Accessories	OEM
61662 P10	Bearing, Rod Connecting	—	—	85	Engine Accessories	OEM
61681	Guide, Intake Valve	—	—	85	Engine Accessories	OEM
618177	Camshaft	—	King Air 300	85	Engine Accessories	OEM
618177	Camshaft	—	King Air 300	85	Engine Accessories	OEM
61837	VALVE SLEEVE	—	PA-28 Cherokee	85	Hydraulics	PMA
619512	CRANKSHAFT	—	—	85	unknown
62-10002-( )	Inlet Duct Assembly	Machen, Inc.	—	85	Structures	PMA
62-10005-( )	Induction Tube Assemblies	Machen, Inc.	—	85	Engine Accessories	PMA
620067007	BREATHER	—	M20K	85	unknown
620122	Spring Valve - Inner	—	MD 500	85	Engine Accessories	OEM
620122	Spring Valve - Inner	—	MD 500	85	Engine Accessories	OEM
620164	Spring Valve - Outer	—	MD 500	85	Engine Accessories	OEM
620164	Spring Valve - Outer	—	MD 500	85	Engine Accessories	OEM
620197	Gasket - Coolant Inlet Elbow to Cylinder (-9 Engines)	—	—	85	Engine Accessories	OEM
620197	Gasket - Coolant Inlet Elbow to Cylinder (-9 Engines)	—	—	85	Engine Accessories	OEM
620198	Gasket - Coolant Inlet Elbow Cylinder Center Connection	—	—	85	Engine Accessories	OEM
620198	Gasket - Coolant Inlet Elbow Cylinder Center Connection	—	—	85	Engine Accessories	OEM
620223	Gasket - Cylinder Camshaft Rocker Mechanism Cover Breather	—	—	85	Engine Accessories	OEM
620223	Gasket - Cylinder Camshaft Rocker Mechanism Cover Breather	—	—	85	Engine Accessories	OEM
620985	Coolant Inlet Pipe	—	—	85	Engine Accessories	OEM
620985	Coolant Inlet Pipe	—	—	85	Engine Accessories	OEM
620997	Gasket - Oil Fittings Strainer Sump to Head (CUNO)	—	—	85	Engine Accessories	OEM
620997	Gasket - Oil Fittings Strainer Sump to Head (CUNO)	—	—	85	Engine Accessories	OEM
621398	Gasket -Cylinder A Unit Camshaft and Rocker Mechanism Cover (-3-7-9)	—	—	85	Engine Accessories	OEM
621398	Gasket -Cylinder A Unit Camshaft and Rocker Mechanism Cover (-3-7-9)	—	—	85	Engine Accessories	OEM
621400	Gasket - Cylinder B Unit Camshaft and Rocker Mechanism Cover (-3-7-9)	—	—	85	Engine Accessories	OEM
621400	Gasket - Cylinder B Unit Camshaft and Rocker Mechanism Cover (-3-7-9)	—	—	85	Engine Accessories	OEM
621607	Gasket - Priming Pipes Filter Housing to Aftercooler	—	—	85	Engine Accessories	OEM
621607	Gasket - Priming Pipes Filter Housing to Aftercooler	—	—	85	Engine Accessories	OEM
622041	Gasket - Cylinder Camshaft Rocker Mechanism Cover Breather	—	—	85	Engine Accessories	OEM
622041	Gasket - Cylinder Camshaft Rocker Mechanism Cover Breather	—	—	85	Engine Accessories	OEM
62388	CAP VALVE STEM	—	C177 Cardinal	85	Consumables / Hardware	PMA
625+12	Stud	—	—	85	Consumables / Hardware	OEM
625+4	Stud	—	—	85	Consumables / Hardware	OEM
625+62	Stud	—	—	85	Consumables / Hardware	OEM
625+8	Stud	—	—	85	Consumables / Hardware	OEM
625207	TUBE	CONT	—	85	unknown	OEM
625393	SPRING RETAINER	—	C421 Golden Eagle PA-46 Malibu	85	Consumables / Hardware
625432A2	CYLINDER	—	—	85	Hydraulics	OEM
625548	Gasket, Cover	—	—	85	Engine Accessories	OEM
625548	Gasket, Cover	—	—	85	Engine Accessories	OEM
625615	520 Valve Cover	—	—	85	Engine Accessories	OEM
625615	520 Valve Cover	—	—	85	Engine Accessories	OEM
625859CP	CYLINDER	—	—	85	unknown	OEM
626140	Nut, 3/8-24 UNF x .330 High, Special	—	—	85	Engine Accessories	OEM
626140	Nut, 3/8-24 UNF x .330 High, Special	—	—	85	Engine Accessories	OEM
626146	PISTON	—	—	85	unknown
626147	Spring, Pushrod Housing	—	—	85	Engine Accessories	OEM