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
07-13281	73846 Lycoming Baffle Assembly Intercylinder	—	—	85	Engine Accessories	OEM
07-13287	73975 Lycoming Baffle Assembly Intercylinder	—	—	85	Engine Accessories	OEM
07-13291	74026 Lycoming Plate - Crankshaft Oil Seal Ret	—	—	85	Engine Accessories	OEM
07-13293	74034 Lycoming Kit - Crankshaft Seal	—	—	85	Engine Accessories	OEM
07-13294	74057 Lycoming Plug	—	—	85	Consumables / Hardware	OEM
07-13298	74070 Lycoming Elbow - .375 Fl. Tube & .5625-18	—	—	85	Consumables / Hardware	OEM
07-13299	74084 Lycoming Pipe - Intake	—	—	85	Engine Accessories	OEM
07-13301	74124 Lycoming Stud - .375-16 X 9.68 Long	—	—	85	Consumables / Hardware	OEM
07-13312	74305 Lycoming Seal	—	—	85	Engine Accessories	OEM
07-13319	74369 Lycoming Tee - .250 Tub-Adj.Str.On Run.	—	—	85	Consumables / Hardware	OEM
07-13321	74389 Lycoming Bushing - Valve Rocker	—	—	85	Consumables / Hardware	OEM
07-13333	74522 Lycoming Pipe - Intake - Cylinder #3 & 4	—	—	85	Engine Accessories	OEM
07-13340	74637 Lycoming Bushing - Valve Rocker	—	—	85	Consumables / Hardware	OEM
07-13344	74652 Lycoming Pipe - Intake - Cylinder #2	—	—	85	Engine Accessories	OEM
07-13345	74653 Lycoming Pipe - Intake - Cylinder #3	—	—	85	Engine Accessories	OEM
07-13346	74654 Lycoming Pipe - Intake - Cylinder #4	—	—	85	Engine Accessories	OEM
07-13350	74711 Lycoming Plug - 1.25	—	—	85	Consumables / Hardware	OEM
07-13352	74718 Lycoming Baffle Assembly Intercylinder	—	—	85	Engine Accessories	OEM
07-13353	74719 Lycoming Baffle Assembly	—	—	85	Engine Accessories	OEM
07-13354	74764 Lycoming Pipe - Intake - Cylinder #1	—	—	85	Engine Accessories	OEM
07-13359	74822 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-13366	74888 Lycoming Stud - .500-20 X 11.50 Long	—	—	85	Consumables / Hardware	OEM
07-13367	74906 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-13369	74926 Lycoming Washer	—	—	85	Consumables / Hardware	OEM
07-13385	75111 Lycoming Pipe - Intake - Cylinder #1	—	—	85	Engine Accessories	OEM
07-13386	75112 Lycoming Pipe - Intake - Cylinder #2	—	—	85	Engine Accessories	OEM
07-13388	75114 Lycoming Pipe - Intake - Cylinder #4	—	—	85	Engine Accessories	OEM
07-13389	75115 Lycoming Pipe - Intake - Cylinder #5 & 8	—	—	85	Engine Accessories	OEM
07-13392	75121 Lycoming Pipe - Extension- Intake - Cylinder #1&2	—	—	85	Engine Accessories	OEM
07-13393	75125 Lycoming Pipe - Extension- Intake-#5 6 7 8	—	—	85	Engine Accessories	OEM
07-13400	75155 Lycoming Stud - .5625-18 X 10.94 Long	—	—	85	Consumables / Hardware	OEM
07-13409	75222 Lycoming Washer - Thrust .63Id X 1.25 Od	—	—	85	Consumables / Hardware	OEM
07-13410	75233 Lycoming O Ring Seal - Rocker Shaft Cover	—	—	85	Consumables / Hardware	OEM
07-13411	75237 Lycoming Washer	—	—	85	Consumables / Hardware	OEM
07-13415	75302 Lycoming Dowel-Crankcase Thru Stud	—	—	85	Consumables / Hardware	OEM
07-13417	75330 Lycoming Hose - Air Box 2.50 Id	—	—	85	Engine Accessories	OEM
07-13420	75338 Lycoming Baffle Assembly Intercylinder	—	—	85	Engine Accessories	OEM
07-13421	75339 Lycoming Baffle Assembly Intercylinder	—	—	85	Engine Accessories	OEM
07-13438	75631 Lycoming Roller-Counterweight	—	—	85	Engine Accessories	OEM
07-13445	75712 Lycoming Stud - .500-20 X 6.66 Long	—	—	85	Consumables / Hardware	OEM
07-13452	75742 Lycoming Pipe - Intake - Cylinder #2	—	—	85	Engine Accessories	OEM
07-13459	75840 Lycoming Fitting-Breather	—	—	85	Engine Accessories	OEM
07-13460	75843 Lycoming Nut - .625-18 Crimplock	—	—	85	Consumables / Hardware	OEM
07-13466	75888 Lycoming Stud - .250-20 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-13467	75890 Lycoming Gasket	—	—	85	Consumables / Hardware	OEM
07-13472	75948 Lycoming Tee - .250 Tube X .4375 Thd.	—	—	85	Consumables / Hardware	OEM
07-13474	75957 Lycoming Seal	—	—	85	Engine Accessories	OEM
07-13475	75968 Lycoming Seal	—	—	85	Engine Accessories	OEM
07-13476	75993 Lycoming Gasket - Sonic Nozzle	—	—	85	Consumables / Hardware	OEM
07-13477	76001 Lycoming Bushing - 1.19 OD X .98 Id	—	—	85	Engine Accessories	OEM