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
530830	PLUG PISTON PIN	—	C150	85	Consumables / Hardware	PMA
530844	Pin, Piston	—	—	85	Engine Accessories	OEM
530844	Pin, Piston	—	—	85	Engine Accessories	OEM
530845	Piston Pin Assy	—	—	85	Engine Accessories	OEM
530845	Piston Pin Assy	—	—	85	Engine Accessories	OEM
530851	LIFTER	—	C170	85	unknown	OEM
530928	Gasket, Pushrod Housing Flange	—	—	85	Engine Accessories	OEM
530928	Gasket, Pushrod Housing Flange	—	—	85	Engine Accessories	OEM
530950P003	stud .44-14-20x8.56	teledyne continental	—	85	Consumables / Hardware	OEM
531077	housing	teledyne continental	—	85	Engine Accessories	OEM
531178	RETAINER	—	C404 Titan	85	Consumables / Hardware
531608	Valve, Intake	—	—	85	Engine Accessories	OEM
531608	Valve, Intake	—	—	85	Engine Accessories	OEM
531694	Plunger Unit	—	—	85	Engine Accessories	OEM
531694	Plunger Unit	—	—	85	Engine Accessories	OEM
532129	VALVE	—	—	85	unknown
532200	O-RING	—	—	85	unknown	OEM
532436	Barrel, Cylinder	—	—	85	Engine Accessories	OEM
532436	Barrel, Cylinder	—	—	85	Engine Accessories	OEM
53297/A	Piston	—	—	85	Engine Accessories	OEM
53314/C	Valve	—	—	85	unknown	OEM
533285	Dowel	—	—	85	Engine Accessories	OEM
534278	PIN	—	C421 Golden Eagle	85	Consumables / Hardware
534397	ROCKER ARM	—	C414	85	Engine Accessories
534398	EXHAUST ROCKER	—	C182 Skylane C414	85	Engine Accessories
534487	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
534487	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
534609	Washer, Pushrod Housing	—	—	85	Engine Accessories	OEM
534609	Washer, Pushrod Housing	—	—	85	Engine Accessories	OEM
534610	Packing, Pushrod Housing	—	—	85	Engine Accessories	OEM
534610	Packing, Pushrod Housing	—	—	85	Engine Accessories	OEM
534685AC	bearing ball	teledyne continental	—	85	Engine Accessories	OEM
534728	SUPPORT PIN	—	C404 Titan C421 Golden Eagle	85	Consumables / Hardware	PMA
53485152	CLUTCH	PWA	Douglas DC-6	85	Electromechanical	OEM
534855	Cover, Rocker	—	—	85	Engine Accessories	OEM
534855	Cover, Rocker	—	—	85	Engine Accessories	OEM
534895	Piston 5 Dia, 7 1 Comp Ratio	—	—	85	Engine Accessories	OEM
534895	Piston 5 Dia, 7 1 Comp Ratio	—	—	85	Engine Accessories	OEM
534909	Ring, Compression	—	—	85	Engine Accessories	OEM
534909	Ring, Compression	—	—	85	Engine Accessories	OEM
535052	Spring, Pushrod Housing	—	—	85	Engine Accessories	OEM
535052	Spring, Pushrod Housing	—	—	85	Engine Accessories	OEM
535057	Packing, Pushrod Housing	—	—	85	Engine Accessories	OEM
535057	Packing, Pushrod Housing	—	—	85	Engine Accessories	OEM
53509162	COVER	—	C404 Titan	85	unknown
535118	Screw, Rocker Cover	—	—	85	Engine Accessories	OEM
535118	Screw, Rocker Cover	—	—	85	Engine Accessories	OEM
535133	Piston 5.0 Dia., 7 1 comp. ratio	—	—	85	Engine Accessories	OEM
535133	Piston 5.0 Dia., 7 1 comp. ratio	—	—	85	Engine Accessories	OEM
535408	Nut	—	—	85	Consumables / Hardware	OEM