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
646288 P05	Thrust Washer	—	—	85	Engine Accessories	OEM
646294	sheave-idler	teledyne continental	—	85	Engine Accessories	OEM
646297	BRACKET	—	—	85	Structures
646303	PISTON	—	C421 Golden Eagle	85	Engine Accessories	OEM
646311	PISTON	—	—	85	unknown	OEM
646320	CYLINDER	—	PA-34 Seneca	85	unknown
646321A2	rod connec	teledyne continental	—	85	Engine Accessories	OEM
646330	cover	teledyne continental	—	85	Consumables / Hardware	OEM
646382	spacer	teledyne continental	—	85	Consumables / Hardware	OEM
646392	Support casting	—	—	85	Engine Accessories	OEM
646437	CONNECTING ROD	—	C404 Titan	85	Engine Accessories	OEM
646438	CRANKSHAFT	—	PA-46 Malibu	85	unknown	OEM
646447-2	shim	teledyne continental	—	85	Consumables / Hardware	OEM
646460	EXHAUST VALVE	—	PA-34 Seneca C337 Skymaster	85	Engine Accessories	OEM
646470	adapter 4 tube x .312-24	teledyne continental	—	85	Consumables / Hardware	OEM
646476	CONNECTING ROD	—	C310	85	Engine Accessories
646483	screw	teledyne continental	—	85	Consumables / Hardware	OEM
646492	Bearing - Ball, Single Row	—	—	85	Engine Accessories	OEM
646492A1	Kit, Alternator Drive end	—	—	85	Engine Accessories	OEM
646492A1AC	kit alternator drive end	teledyne continental	—	85	Engine Accessories	OEM
646492AC	bearing ball single row	teledyne continental	—	85	Engine Accessories	OEM
646495	Bearing - Ball, Single Row	—	—	85	Engine Accessories	OEM
646495AC	bearing ball single row	teledyne continental	—	85	Engine Accessories	OEM
646507	bracket	teledyne continental	—	85	Consumables / Hardware	OEM
646508-15A1	vlv-manif and ftg asm	kelly aero power	—	85	Engine Accessories	OEM
646520646521	CRANKCASE	CONT	Bell 206	85	Engine Accessories
646539-A1	TCM 646539A1 Gasket Set	—	—	85	Consumables / Hardware	OEM
6465417-A1	TCM 646541-A1 Gasket Set MOH	—	—	85	Consumables / Hardware	OEM
646550A2	gasket set-i0550g	teledyne continental	—	85	Consumables / Hardware	OEM
646559A2	gasket set	teledyne continental	—	85	Consumables / Hardware	OEM
646559A3	gskt set 200-300new s-cyl	teledyne continental	—	85	Consumables / Hardware	OEM
646561A3	gasket set	teledyne continental	—	85	Consumables / Hardware	OEM
646582-1.92	bracket	teledyne continental	—	85	Engine Accessories	OEM
646605	NUT	—	C206 Stationair C337 Skymaster	85	Consumables / Hardware	OEM
646612	EXHAUST VALVE	—	C172 Skyhawk C150	85	Engine Accessories	PMA
646613-2	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
646613-2	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
646613-4	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
646613-4	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
6466131	CRANKCASE	—	—	85	Engine Accessories	OEM
646623	CRANKSHAFT	—	C206 Stationair	85	Engine Accessories	PMA
646640	EXHAUST VALVE	—	C172 Skyhawk	85	Engine Accessories	OEM
646644R4S13.00	hose asm	teledyne continental	—	85	Consumables / Hardware	OEM
646644R4S16.00	hose asm	teledyne continental	—	85	Consumables / Hardware	OEM
646644R6YC28.00	hose asm	teledyne continental	—	85	Consumables / Hardware	OEM
646644S10S18.00	hose assembly	teledyne continental	—	85	Consumables / Hardware	OEM
646644S4S10.00	hose ay	teledyne continental	—	85	Consumables / Hardware	OEM
646644S4S15.00	hose asm	teledyne continental	—	85	Consumables / Hardware	OEM
646644S4S15.25	hose ay	teledyne continental	—	85	Consumables / Hardware	OEM
646644S4S30.00	hose asm	teledyne continental	—	85	Consumables / Hardware	OEM