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
640293	Ring, Scraper	—	—	85	Engine Accessories	OEM
640299	Ring, Compression	—	—	85	Engine Accessories	OEM
640299	Ring, Compression	—	—	85	Engine Accessories	OEM
640300	Ring Assy, Oil Control	—	—	85	Engine Accessories	OEM
640300	Ring Assy, Oil Control	—	—	85	Engine Accessories	OEM
640301	Ring, Compression	—	—	85	Engine Accessories	OEM
640301	Ring, Compression	—	—	85	Engine Accessories	OEM
640302	Ring, Scraper	—	—	85	Engine Accessories	OEM
640302	Ring, Scraper	—	—	85	Engine Accessories	OEM
640433	CRANKCASE	—	C337 Skymaster	85	unknown	OEM
640482	Stud, Size-on-Size Lock Ring, Captive	—	—	85	Engine Accessories	OEM
640482	Stud, Size-on-Size Lock Ring, Captive	—	—	85	Engine Accessories	OEM
640501	SLEEVE	—	C404 Titan C421 Golden Eagle	85	unknown	OEM
640518	Piston	—	—	85	Engine Accessories	OEM
640560	screw	teledyne continental	—	85	Consumables / Hardware	OEM
640684	Gear, Acc. Driver Bevel	—	—	85	Engine Accessories	OEM
640690	adapter	teledyne continental	—	85	Engine Accessories	OEM
640726	TUBE ASSY	—	C421 Golden Eagle	85	Engine Accessories	OEM
640731AC	bearing ball	teledyne continental	—	85	Engine Accessories	OEM
640761A	BEARING	—	PA-31 Navajo	85	unknown	OEM
640766A4	SCAVENGE PUMP	—	PA-46 Malibu	85	Engine Accessories	PMA
640802	BEVEL GEAR	—	—	85	unknown	OEM
640808	GEAR	—	C402	85	unknown	OEM
640849	COVER	CONT	—	85	Engine Accessories	unknown
640926	DRIVE SHAFT	—	PA-34 Seneca	85	Engine Accessories	PMA
640941	ROCKER ARM	—	C404 Titan	85	unknown
641047Y4YG18.0	hose	teledyne continental	—	85	Engine Accessories	OEM
641060	CAMSHAFT	—	PA-34 Seneca	85	Engine Accessories	PMA
641066	O-RING	—	—	85	Consumables / Hardware	PMA
641068	CHECK VALVE	—	M20K	85	Hydraulics	PMA
641250	SEAL	CONTIN	C310 C414	85	Consumables / Hardware	OEM
641307	SEAL	—	—	85	unknown	OEM
641320	CYLINDER HEAD	—	PA-34 Seneca	85	Engine Accessories	OEM
641368	BEARING	—	C310 PA-34 Seneca	85	unknown
641368AC	bearing needle	teledyne continental	—	85	Engine Accessories	OEM
641369	Cylinder Assy.	—	—	85	Engine Accessories	OEM
641369	Cylinder Assy.	—	—	85	Engine Accessories	OEM
64137	CYLINDER	—	PA-34 Seneca	85	unknown
641370	CYLINDER	—	PA-34 Seneca	85	Engine Accessories	PMA
641370A8	CYLINDER	—	C337 Skymaster	85	unknown
641370CP	VALVE	—	PA-34 Seneca	85	unknown	OEM
641428	Ring, Oil Control	—	—	85	Engine Accessories	OEM
641428	Ring, Oil Control	—	—	85	Engine Accessories	OEM
641431	Ring, Scraper	—	—	85	Engine Accessories	OEM
641461	thread-silk260 yds spool	teledyne continental	—	85	Consumables / Hardware	OEM
6416311052	THRU BOLT	CONT	C188 AgWagon	85	Consumables / Hardware	OEM
641639	ADAPTER	CONT	C402	85	Engine Accessories	OEM
641672-3	Turbocharger	—	—	85	Engine Accessories	OEM
641734	FILTER ADAPTER	—	C172 Skyhawk	85	unknown	OEM
641782	Piston, 5.25 Dia.	—	—	85	Engine Accessories	OEM