ATA 85 — Reciprocating Engine

23,102 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
07-12921	66670 Lycoming Bushing - Rocker Shaft - Inner	—	—	85	Engine Accessories	OEM
07-12925	66907 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12926	66920 Lycoming Spring	—	—	85	Engine Accessories	OEM
07-12927	66928 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12928	66937 Lycoming Tube Assembly Breather Drain	—	—	85	Engine Accessories	OEM
07-12929	66960 Lycoming Plunger	—	—	85	Engine Accessories	OEM
07-12939	67633 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12942	67678 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12944	67708 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12946	67722 Lycoming Ring	—	—	85	Consumables / Hardware	OEM
07-12950	67746 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12953	67785 Lycoming Guide -Superch Dr Coup Sprg-Sho	—	—	85	Engine Accessories	OEM
07-12957	68018 Lycoming Washer - .250 X .16 Thick	—	—	85	Consumables / Hardware	OEM
07-12959	68127 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12962	68174 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12963	68192 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12964	68196 Lycoming Ring - Piston - Comp-4.375 Bore	—	—	85	Engine Accessories	OEM
07-12969	68338 Lycoming Ring - Piston - Oil-4.875 Bore	—	—	85	Engine Accessories	OEM
07-12972	68456 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-12974	68513 Lycoming Ring - Piston - Top Compression	—	—	85	Engine Accessories	OEM
07-12979	68556 Lycoming Gasket - Accessory Housing Cover	—	—	85	Consumables / Hardware	OEM
07-12982	68749 Lycoming Shaft - Crankshaft Idler Gear	—	—	85	Engine Accessories	OEM
07-12983	68751 Lycoming Stud - .500-20 X 10.65 Long	—	—	85	Consumables / Hardware	OEM
07-12989	68795 Lycoming Cover Assembly Rocker Box	—	—	85	Engine Accessories	OEM
07-12990	68830 Lycoming Spring	—	—	85	Engine Accessories	OEM
07-12995	68987 Lycoming Tube - Push Rod Shroud	—	—	85	Engine Accessories	OEM
07-13003	69265 Lycoming Sleeve	—	—	85	Engine Accessories	OEM
07-13004	69278 Lycoming Shim	—	—	85	Consumables / Hardware	OEM
07-13005	69286 Lycoming Annulus	—	—	85	Engine Accessories	OEM
07-13012	69433 Lycoming Roller	—	—	85	Engine Accessories	OEM
07-13022	69584 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-13023	69602 Lycoming Connection- Intake Pipe	—	—	85	Engine Accessories	OEM
07-13026	69625 Lycoming Cover Assembly Rocker Box - Left	—	—	85	Engine Accessories	OEM
07-13029	69662 Lycoming Gear - Camshaft	—	—	85	Engine Accessories	OEM
07-13034	69720 Lycoming Gasket - Dual Accessory Drive	—	—	85	Consumables / Hardware	OEM
07-13039	69947 Lycoming Baffle Assembly	—	—	85	Engine Accessories	OEM
07-13048	70416 Lycoming Roller-Dynamic Counterweight	—	—	85	Engine Accessories	OEM
07-13050	70434 Lycoming Jet	—	—	85	Engine Accessories	OEM
07-13052	70455 Lycoming Gasket - .78 Id X 1.13 OD X .030	—	—	85	Consumables / Hardware	OEM
07-13059	71023 Lycoming Brace-Fuel Drive-Vacuum Pump	—	—	85	Engine Accessories	OEM
07-13062	71133 Lycoming Nut - .500-20 Nf-3	—	—	85	Consumables / Hardware	OEM
07-13063	71134 Lycoming Nut - .375-24 Nf-3	—	—	85	Consumables / Hardware	OEM
07-13064	71140 Lycoming Fitting-Breather	—	—	85	Engine Accessories	OEM
07-13067	71304 Lycoming Camshaft Assembly	—	—	85	Engine Accessories	OEM
07-13068	71341 Lycoming Bushing - Thrust-1.00 Id X 1.19	—	—	85	Engine Accessories	OEM
07-13077	71610 Lycoming Hook-Intercyl Baffle Retainer	—	—	85	Consumables / Hardware	OEM
07-13078	71611 Lycoming Retainer - Intercylinder Baffle	—	—	85	Consumables / Hardware	OEM
07-13079	71612 Lycoming Tube Assembly	—	—	85	Engine Accessories	OEM
07-13081	71622 Lycoming Tube Assembly	—	—	85	Engine Accessories	OEM
07-13083	71629 Lycoming Hook	—	—	85	Engine Accessories	OEM