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
641931981	THROUGH-BOLT	—	C185 Skywagon	85	Consumables / Hardware
6419441048	THROUGH-BOLT	—	C337 Skymaster	85	Consumables / Hardware	OEM
641951	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P05	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P05	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P10	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P10	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P15	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P15	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P20	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P20	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P30	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641951 P30	Valve Guide Exhaust	—	—	85	Engine Accessories	OEM
641963	VALVE GUIDE	—	C182 Skylane	85	Engine Accessories	PMA
641973	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P05	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P05	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P10	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P10	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P15	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P15	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P20	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P20	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P30	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641973 P30	Guide- Valve, Intake	—	—	85	Engine Accessories	OEM
641992	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
641992	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
641992 M05	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
641992 M05	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
641992 M10	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
641992 M10	VP3N Main Bearing Front	—	—	85	Engine Accessories	OEM
64200	CRANKCASE	—	—	85	Engine Accessories	PMA
642001	CRANKCASE	—	C402	85	Engine Accessories
642068	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642068	Cylinder Assembly	—	—	85	Engine Accessories	OEM
642068A1	ROCKER BOSS	—	C182 Skylane	85	unknown	OEM
642068CP	CYLINDER	—	C182 Skylane	85	Hydraulics	OEM
642083A7	ADAPTER	—	C310	85	unknown
642085A12	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642085A12R	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642085A9	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642087	STARTER ADAPTER	—	—	85	Engine Accessories	OEM
642087A47R	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642087A48	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642087A50	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642087A55	ADAPTER	—	—	85	unknown	OEM
642087A56R	adapter asm	teledyne continental	—	85	Engine Accessories	OEM
642088	CRANKCASE	—	—	85	unknown