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
73810	Bushing, Counterweight	—	—	85	Engine Accessories	OEM
73810	Bushing, Counterweight	—	—	85	Engine Accessories	OEM
73810P005	Bushing, Crankshaft	—	—	85	Engine Accessories	OEM
73810P0075	Bushing, Crankshaft	—	—	85	Engine Accessories	OEM
73810P010	Bushing, Crankshaft	—	—	85	Engine Accessories	OEM
73810P0125	Bushing, Crankshaft	—	—	85	Engine Accessories	OEM
73810P015	Bushing, Crankshaft	—	—	85	Engine Accessories	OEM
73851	Piston, 7.3 1	—	—	85	Engine Accessories	OEM
73851	Piston, 7.3 1	—	—	85	Engine Accessories	OEM
73857	PISTON RING	LYC	PA-31 Navajo PA-46 Malibu	85	Engine Accessories	OEM
73857 P05	Ring, Oil Control	—	—	85	Engine Accessories	OEM
73857 P05	Ring, Oil Control	—	—	85	Engine Accessories	OEM
73857 P10	Ring, Oil Control	—	—	85	Engine Accessories	OEM
73857 P20	Ring, Oil Control	—	—	85	Engine Accessories	OEM
7386P	PUSHROD	—	C152	85	Flight Controls	PMA
73932	Piston, VO- 435 8. 7:1 CR	—	—	85	Engine Accessories	OEM
73938	INTAKE VALVE	LYC	PA-32 Saratoga PA-31 Navajo+3	85	Engine Accessories	OEM
73939	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
73939	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
73948	Cylinder Assembly	—	—	85	Engine Accessories	OEM
73948	Cylinder Assembly	—	—	85	Engine Accessories	OEM
73960	Slipper bearings	Design Engineering	—	85	Engine Accessories	PMA
73965-004	V-Belt	—	PA-28 Cherokee PA-32 Cherokee Six	85	Engine Accessories	OEM
73965-019	V-Belt	—	PA-28 Cherokee	85	Engine Accessories	OEM
73965-020	V-Belt	—	PA-28 Cherokee	85	Engine Accessories	OEM
73965-023	V-Belt	—	PA-46 Malibu	85	Engine Accessories	OEM
73965-20	V-Belt	—	PA-28 Cherokee	85	Engine Accessories	OEM
73965-23	V-Belt	—	PA-46 Malibu	85	Engine Accessories	OEM
73965-9	V-Belt	—	PA-28 Cherokee PA-32 Cherokee Six	85	Engine Accessories	OEM
73976	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
73976	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
73979	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
73979	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
74-20010-( )	180 Degree Duct Assembly	Machen, Inc.	—	85	Engine Accessories	PMA
74-645-OAA	Piston	Omega Aircraft Articles LLC	King Air 200 King Air 300	85	Engine Accessories	PMA
74084	Pipe, Intake	—	—	85	Engine Accessories	OEM
74084	Pipe, Intake	—	—	85	Engine Accessories	OEM
74091	Crankcase Assembly (Dynafocal Type 1 Mount, Narrow Deck)	—	—	85	Engine Accessories	OEM
74230	VALVE GUIDE	LYC	C182 Skylane PA-28 Cherokee+1	85	Engine Accessories	OEM
74230 P05	Guide, Exhaust Valve Seat	—	—	85	Engine Accessories	OEM
74230 P10	Guide, Exhaust Valve Seat	—	—	85	Engine Accessories	OEM
74230 P20	Guide, Exhaust Valve Seat	—	—	85	Engine Accessories	OEM
74230 P30	Guide, Exhaust Valve Seat	—	—	85	Engine Accessories	OEM
74230 P40	Guide, Exhaust Valve Seat	—	—	85	Engine Accessories	OEM
74241	RING	LYC	PA-32 Saratoga	85	Engine Accessories	OEM
74241 P10	Ring, Piston	—	—	85	Engine Accessories	OEM
74241 P20	Ring, Piston	—	—	85	Engine Accessories	OEM
74242	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
74242	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
74248-S	Bushing, Propeller Flange	—	—	85	Engine Accessories	OEM