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
535408	Nut	—	—	85	Consumables / Hardware	OEM
535631	Screw	—	—	85	Consumables / Hardware	OEM
535660	CAM GEAR	—	C180	85	Engine Accessories	PMA
535661	CAMSHAFT	—	C206 Stationair C310+1	85	unknown
535666	SCREW	—	—	85	Consumables / Hardware	PMA
535737	Screw, 5/16-24UNF x 5/16 Long, Drilled Hex Head	—	—	85	Engine Accessories	OEM
535737	Screw, 5/16-24UNF x 5/16 Long, Drilled Hex Head	—	—	85	Engine Accessories	OEM
535810	BOLT	CONT	—	85	Consumables / Hardware
536033	Bushing	—	—	85	Consumables / Hardware	OEM
536033	Bushing	—	—	85	Consumables / Hardware	OEM
536379	BOLT	CONT	C402	85	Consumables / Hardware	OEM
536421	CRANK GEAR	—	C206 Stationair C180+1	85	Engine Accessories	PMA
536563 P05	Dowel	—	—	85	Engine Accessories	OEM
536563 P05	Dowel	—	—	85	Engine Accessories	OEM
536580	CRANKSHAFT	—	—	85	Engine Accessories	PMA
536727	CYLINDER	CONT	—	85	Engine Accessories	OEM
536938	Ring, Compression	—	—	85	Engine Accessories	OEM
536938	Ring, Compression	—	—	85	Engine Accessories	OEM
536939	Ring	—	—	85	Consumables / Hardware	OEM
536939	Ring	—	—	85	Consumables / Hardware	OEM
536939 P05	Ring	—	—	85	Consumables / Hardware	OEM
536939 P15	Ring	—	—	85	Consumables / Hardware	OEM
537019	Screw, 5/16-24UNF x 5/16 Long, Drilled Hex Head	—	—	85	Engine Accessories	OEM
537019	Screw, 5/16-24UNF x 5/16 Long, Drilled Hex Head	—	—	85	Engine Accessories	OEM
537064	Ring Assy, Oil Control	—	—	85	Engine Accessories	OEM
537064	Ring Assy, Oil Control	—	—	85	Engine Accessories	OEM
537064 639768 640300	Ring Assembly, Oil Control	—	—	85	Engine Accessories	OEM
537290	CRANKSHAFT	—	C182 Skylane	85	unknown
537296	CYLINDER	CONT	C206 Stationair C210 Centurion	85	Engine Accessories	OEM
537309	Piston 5.0 Dia., 8 1 comp. ratio	—	—	85	Engine Accessories	OEM
537309	Piston 5.0 Dia., 8 1 comp. ratio	—	—	85	Engine Accessories	OEM
537432	GEAR	—	C421 Golden Eagle	85	unknown	OEM
537466	THROUGH BOLT	—	M20K	85	Consumables / Hardware	PMA
537466-6	thru-bolt .38-24 x 9.31	teledyne continental	—	85	Consumables / Hardware	OEM
537490	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537490	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537490-4	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537490-4	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537490-7	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537490-7	Assembly, Pushrod	—	—	85	Engine Accessories	OEM
537721	BEARING	—	C404 Titan C421 Golden Eagle	85	unknown	OEM
537721 as used in Continental Motors engines	Bearing - Needle	—	—	85	Engine Accessories	OEM
537721AC	bearing needle	teledyne continental	—	85	Engine Accessories	OEM
537750	SCREW	CONT	SR22 C404 Titan+2	85	Consumables / Hardware	OEM
537750D	SCREW	—	C421 Golden Eagle	85	Consumables / Hardware	OEM
537848	Bearing , Crankshaft Main	—	—	85	Engine Accessories	OEM
537848	Bearing , Crankshaft Main	—	—	85	Engine Accessories	OEM
537870P030	Pushrod Assy.	—	—	85	Engine Accessories	OEM
537883	Piston	—	—	85	Engine Accessories	OEM
537883	Piston	—	—	85	Engine Accessories	OEM