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
07-14733	21B21601-01 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14734	21B21601-02 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14735	21B21601-03 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14736	21B21603-01 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14739	21B21606-01 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14740	21C21539-02 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14779	25-11 Lycoming Stud - .250-20 X 1.38 Long	—	—	85	Consumables / Hardware	OEM
07-14781	25-13 Lycoming Stud - .250-20 X 1.63 Long	—	—	85	Consumables / Hardware	OEM
07-14786	25-8-P03 Lycoming Stud - .250-20 X 1.00 Long	—	—	85	Consumables / Hardware	OEM
07-14787	25C-10 Lycoming Stud - .250-20 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14788	25C-10-P03 Lycoming Stud - .250-20 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14789	25C-10-P07 Lycoming Stud - .250-20 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14790	25C-11 Lycoming Stud - .250-20 X 1.38 Long	—	—	85	Consumables / Hardware	OEM
07-14791	25C-11-P03 Lycoming Stud - .250-20 X 1.38 Long	—	—	85	Consumables / Hardware	OEM
07-14794	25C-12-P03 Lycoming Stud - .250-20 X 1.50 Long	—	—	85	Consumables / Hardware	OEM
07-14795	25C-14 Lycoming Stud - .250-20 X 1.75 Long	—	—	85	Consumables / Hardware	OEM
07-14796	25C-14-P03 Lycoming Stud - .250-20 X 1.75 Long	—	—	85	Consumables / Hardware	OEM
07-14797	25C-14-P12 Lycoming Stud - .250-20 X 1.75 Long	—	—	85	Consumables / Hardware	OEM
07-14798	25C-16 Lycoming Stud - .250-20 X 2.00 Long	—	—	85	Consumables / Hardware	OEM
07-14800	25C-19 Lycoming Stud - .250-20 X 2.38 Long	—	—	85	Consumables / Hardware	OEM
07-14802	25C-20 Lycoming Stud - .250-20 X 2.50 Long	—	—	85	Consumables / Hardware	OEM
07-14805	25C-22 Lycoming Stud - .250-20 X 2.75 Long	—	—	85	Consumables / Hardware	OEM
07-14806	25C-22-P03 Lycoming Stud - .250-20 X 2.75 Long	—	—	85	Consumables / Hardware	OEM
07-14807	25C-22-P07 Lycoming Stud - .250-20 X 2.78 Long	—	—	85	Consumables / Hardware	OEM
07-14813	25C-34 Lycoming Stud - .250-20 X 4.25 Long	—	—	85	Consumables / Hardware	OEM
07-14814	25C-39 Lycoming Stud - .250-20 X 4.88 Long	—	—	85	Consumables / Hardware	OEM
07-14815	25C-8 Lycoming Stud - .250-20 X 1.00 Long	—	—	85	Consumables / Hardware	OEM
07-14816	25C-8-P03 Lycoming Stud - .250-20 X 1.00 Long	—	—	85	Consumables / Hardware	OEM
07-14817	25C-9 Lycoming Stud - .250-20 X 1.13 Long	—	—	85	Consumables / Hardware	OEM
07-14818	25C-9-P03 Lycoming Stud - .250-20 X 1.13 Long	—	—	85	Consumables / Hardware	OEM
07-14820	25Cd-18 Lycoming Stud - .250-20 X 2.25 Long Dr	—	—	85	Consumables / Hardware	OEM
07-14821	25Cd-18-P03 Lycoming Stud - .250-20 X 2.25 Long Dr	—	—	85	Consumables / Hardware	OEM
07-14824	25D-26 Lycoming Stud - .250-20 X 3.25 Long Dr	—	—	85	Consumables / Hardware	OEM
07-14833	29A21372 Lycoming Drive Assembly Turb0 Scav. & Hyd.	—	—	85	Engine Accessories	OEM
07-14834	29A21405 Lycoming Drive Assembly Turbo Scav. & Hyd.	—	—	85	Engine Accessories	OEM
07-14836	29A22457 Lycoming Drive Assembly Turb0 Scav. & Hyd.	—	—	85	Engine Accessories	OEM
07-14841	29G21749 Lycoming Gear Assembly Accessory Driven	—	—	85	Engine Accessories	OEM
07-14843	30003-001 Lycoming Plug - Body	—	—	85	Consumables / Hardware	OEM
07-14844	31-10 Lycoming Stud - .3125-18 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14845	31-10-P03 Lycoming Stud - .3125-18 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14846	31-10-P07 Lycoming Stud - .3125-18 X 1.25 Long	—	—	85	Consumables / Hardware	OEM
07-14847	31-12 Lycoming Stud - .3125-18 X 1.50 Long	—	—	85	Consumables / Hardware	OEM
07-14848	31-12-P03 Lycoming Stud - .3125-18 X 1.50 Long	—	—	85	Consumables / Hardware	OEM
07-14850	31-12-P12 Lycoming Stud - .3125-18 X 1.50 Long	—	—	85	Consumables / Hardware	OEM
07-14851	31-13 Lycoming Stud - .3125-18 X 1.63 Long	—	—	85	Consumables / Hardware	OEM
07-14852	31-14 Lycoming Stud - .3125-18 X 1.75 Long	—	—	85	Consumables / Hardware	OEM
07-14853	31-15 Lycoming Stud - .3125-18 X 1.88 Long	—	—	85	Consumables / Hardware	OEM
07-14859	31-26 Lycoming Stud - .3125-18 X 3.25 Long	—	—	85	Consumables / Hardware	OEM
07-14860	318-16Cn625 Lycoming Helicoil 1.20 X .625 (Os-5133)	—	—	85	Consumables / Hardware	OEM
07-14893	31C-11 Lycoming Stud - .3125-18 X 1.38 Long	—	—	85	Consumables / Hardware	OEM