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
631331	Spring, Compression, Plunger Needle	—	—	85	Engine Accessories	OEM
631351-17A5	vlv manif and ftg asm	kelly aero power	—	85	Engine Accessories	OEM
631351-18A1	vlv manif.and ftg asm	kelly aero power	—	85	Engine Accessories	OEM
631397	CYLINDER HEAD	ECI	C206 Stationair C340+1	85	Engine Accessories
631427220	VALVE	—	—	85	unknown	OEM
631475	PISTON	—	—	85	unknown
631475P010	Piston 5.25 DIA 8.5 1 Comp. Ratio Forged	—	—	85	Engine Accessories	OEM
631475P015	Piston 5.25 DIA 8.5 1 Comp. Ratio Forged	—	—	85	Engine Accessories	OEM
631481	Piston	—	—	85	Engine Accessories	OEM
631481	Piston	—	—	85	Engine Accessories	OEM
631496	Guide, Intake Valve	—	—	85	Engine Accessories	OEM
631496	Guide, Intake Valve	—	—	85	Engine Accessories	OEM
631496P005	Guide, Valve Intake	—	—	85	Engine Accessories	OEM
631496P010	Guide, Valve Intake	—	—	85	Engine Accessories	OEM
631496P015	Guide, Valve Intake	—	—	85	Engine Accessories	OEM
631496P020	Guide, Valve Intake	—	—	85	Engine Accessories	OEM
631496P030	Guide, Valve Intake	—	—	85	Engine Accessories	OEM
631521	VALVE SPRINGS	—	C206 Stationair C414+2	85	Engine Accessories	OEM
631521637837	VALVE SPRING	—	C180	85	unknown	OEM
631582-01	Roller, Follower	—	DC-10-30 MD-11+1	85	Engine Accessories	OEM
631619	EXHAUST VALVE	—	C150	85	unknown	OEM
631639	EXHAUST VALVE	—	A330-200 C172 Skyhawk	85	Engine Accessories	OEM
631653	SPRING SEAT	—	C402	85	Interior / Furnishings	PMA
631714A7	PUMP	—	C206 Stationair	85	Hydraulics	OEM
631716	CRANKSHAFT	CONT	C206 Stationair PA-28 Cherokee+4	85	Engine Accessories	OEM
631794	Bolt, Connecting Rod, Special	—	—	85	Engine Accessories	OEM
631794	Bolt, Connecting Rod, Special	—	—	85	Engine Accessories	OEM
631808	Plate, Counterweight Retaining	—	—	85	Engine Accessories	OEM
631808	Plate, Counterweight Retaining	—	—	85	Engine Accessories	OEM
631845	DRIVE GEAR	CONT	C206 Stationair	85	Engine Accessories	OEM
631871	CRANK GEAR	—	C421 Golden Eagle	85	Engine Accessories	PMA
631883-1	screw-adj 10-32 x .75 lg	teledyne continental	—	85	Consumables / Hardware	OEM
631915	housing	teledyne continental	—	85	Engine Accessories	OEM
631928	Hose	—	—	85	Consumables / Hardware	OEM
631928	Hose	—	—	85	Consumables / Hardware	OEM
631996	RETAINER	CONT	C172 Skyhawk PA-28 Cherokee+1	85	Engine Accessories	unknown
632041	ROD	—	—	85	unknown
632041F	CONNECTING ROD	CONT	C310	85	Engine Accessories	OEM
632043	CONNECTING ROD	—	C404 Titan C421 Golden Eagle	85	Engine Accessories	PMA
632050	COUPLING	—	C172 Skyhawk C337 Skymaster	85	unknown
632062	DIPSTICK	—	C206 Stationair	85	Consumables / Hardware	PMA
6320622	DIPSTICK	—	C206 Stationair	85	Consumables / Hardware	PMA
63217H	QUILL SHAFT	—	C421 Golden Eagle	85	Engine Accessories	OEM
632330	BEARING	—	C421 Golden Eagle	85	unknown	OEM
632407A2	Adapter Assembly, Acc. Drive	—	—	85	Engine Accessories	OEM
632443-6	Nut	—	—	85	Consumables / Hardware	OEM
632443-6	Nut	—	—	85	Consumables / Hardware	OEM
632459	valve cover gaskets	teledyne continental	King Air 90	85	Consumables / Hardware	OEM
632482	Cylinder Assembly	—	—	85	Engine Accessories	OEM
632482	Cylinder Assembly	—	—	85	Engine Accessories	OEM