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
642410CN	CYLINDER	—	C182 Skylane	85	Hydraulics	OEM
642436	washer 1-8	teledyne continental	—	85	Consumables / Hardware	OEM
642438	Bearing - Needle	—	—	85	Engine Accessories	OEM
642438AC	bearing needle	teledyne continental	—	85	Engine Accessories	OEM
642507	CRANKCASE	—	C340 Saab 340	85	Engine Accessories	PMA
642509	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
642509	Crankcase, Stud Assembly	—	—	85	Engine Accessories	OEM
642518-4	Turbocharger Assy	—	—	85	Engine Accessories	OEM
642522A1	CRANKCASE	—	C182 Skylane	85	unknown
642594	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642594	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642594CP	CYLINDER HEAD	—	—	85	Engine Accessories	OEM
642594F	CYLINDER	—	C414	85	Engine Accessories	PMA
642603 & 648005	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 & 648005	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 & 648006	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 & 648006	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P05 & 648005 P05	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P05 & 648005 P05	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P05 & 648006 P05	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P05 & 648006 P05	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P10 & 648005 P10	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P10 & 648005 P10	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P10 & 648006 P10	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P10 & 648006 P10	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P15 & 648005 P15	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P15 & 648005 P15	Chrome Taper Face Half Keystone Ring	—	—	85	Engine Accessories	OEM
642603 P15 & 648006 P15	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603 P15 & 648006 P15	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603P005 & 648006P005	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603P010 & 648006P010	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642603P015 & 648006P015	Piston Ring 2nd Groove	—	—	85	Engine Accessories	OEM
642615-1	spacer 1-4	teledyne continental	—	85	Consumables / Hardware	OEM
642619F	PISTON	—	PA-34 Seneca	85	Engine Accessories	OEM
642622	Sleeve, Wear	—	—	85	Engine Accessories	OEM
642647	baffle	teledyne continental	—	85	Engine Accessories	OEM
642676	baffle	teledyne continental	—	85	Engine Accessories	OEM
642691	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642691	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642720	MAIN BEARING	—	C182 Skylane C185 Skywagon	85	unknown	OEM
642720 M05	Bearing, Main	—	—	85	Engine Accessories	OEM
642720 M05	Bearing, Main	—	—	85	Engine Accessories	OEM
642720 M10	Bearing	—	—	85	Consumables / Hardware	OEM
642720 M10	Bearing	—	—	85	Consumables / Hardware	OEM
642720M010	bearing	teledyne continental	—	85	Engine Accessories	OEM
642761	Piston, 5.25 Dia.	—	—	85	Engine Accessories	OEM
642761	Piston, 5.25 Dia.	—	—	85	Engine Accessories	OEM
642839	Bearing, Main	—	—	85	Engine Accessories	OEM
642839	Bearing, Main	—	—	85	Engine Accessories	OEM
642839 M05	Bearing, Main	—	—	85	Engine Accessories	OEM