ATA 85 — Reciprocating Engine

22,971 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
07-03314	15H21201 Lycoming Spring Shroud Tube	—	—	85	Consumables / Hardware	OEM
07-03315	LW-13790 Lycoming Shaft Valve Rocker	—	—	85	Engine Accessories	OEM
07-03316	LW-13792-P50 Lycoming Crankshaft Seal	—	—	85	Engine Accessories	OEM
07-03320	LW-14018 Lycoming Tube Assembly Push Rod Shroud	—	—	85	Engine Accessories	OEM
07-03328	LW-15358 Lycoming Hose - .50 Id X 1.88 Long	—	—	85	Engine Accessories	OEM
07-03332	LW-15592-5-05 Lycoming Hose Clamp	—	—	85	Consumables / Hardware	OEM
07-03344	LW-18101 Lycoming Intake Pipe Hose	—	—	85	Engine Accessories	OEM
07-03395	STD-1196 Lycoming Hose 1.50 Id X 1.94 OD X 1.81	—	—	85	Engine Accessories	OEM
07-03396	STD-1221 Lycoming Ring .81 Dia X.042 Thick	—	—	85	Consumables / Hardware	OEM
07-03397	STD-160 Lycoming Washer .250 Lock Int.Teeth	—	—	85	Consumables / Hardware	OEM
07-03398	STD-1821 Lycoming Hose .38 X 2.50 Long	—	—	85	Engine Accessories	OEM
07-03401	STD-2044 Lycoming Nut .250-20 Self Locking	—	—	85	Consumables / Hardware	OEM
07-03408	STD-2249 Lycoming Nut .250-20 Slotted	—	—	85	Consumables / Hardware	OEM
07-03409	STD-33 Lycoming Washer .375 Plain	—	—	85	Consumables / Hardware	OEM
07-03410	STD-475 Lycoming Washer .3125 Lock Int. Teeth	—	—	85	Consumables / Hardware	OEM
07-03411	STD-596 Lycoming Nut .375-24 Plain	—	—	85	Consumables / Hardware	OEM
07-03412	STD-678 Lycoming Washer .375 Lock Int Teeth	—	—	85	Consumables / Hardware	OEM
07-03489	Tempest Cork Gasket For O200/ C90 Pack of 10	—	—	85	Consumables / Hardware	PMA
07-03538	LW-12944 Lycoming Seal & Gasket Set Kit	—	—	85	Consumables / Hardware	OEM
07-03539	72050 Lycoming Intake Valve Key	—	—	85	Consumables / Hardware	OEM
07-03586	TCM Washer - .31 Special 2555	—	—	85	Consumables / Hardware	OEM
07-03589	TCM Washer - .880Dx .453 Id. 20202	—	—	85	Consumables / Hardware	OEM
07-03593	TCM Screw - #10-24X.50 Mach 20655	—	—	85	Consumables / Hardware	OEM
07-03599	TCM Screw - .25-28X1.50 21218	—	—	85	Consumables / Hardware	OEM
07-03602	TCM Spring - Valve Inner 21365	—	—	85	Engine Accessories	OEM
07-03608	TCM Screw - .25-28X.39 22534	—	—	85	Consumables / Hardware	OEM
07-03611	TCM Washer - .38 Plain 22786	—	—	85	Consumables / Hardware	OEM
07-03615	TCM Seat - Valve Spring 24026	—	—	85	Engine Accessories	OEM
07-03617	TCM Ret-Valve Sprg Exh 24044	—	—	85	Engine Accessories	OEM
07-03621	TCM Screw - .25-28 Hex Head 24252	—	—	85	Consumables / Hardware	OEM
07-03623	TCM Screw - No. 0-.19 Drv 24764	—	—	85	Consumables / Hardware	OEM
07-03626	TCM Screw - .25-28X2.13 24794	—	—	85	Consumables / Hardware	OEM
07-03628	TCM Screw - .25-20Nc3X.88 24835	—	—	85	Consumables / Hardware	OEM
07-03630	TCM Screw - .25-28 X 1.63 Hex 24878	—	—	85	Consumables / Hardware	OEM
07-03636	TCM Washer - Thrust Frt Brg 35562	—	—	85	Engine Accessories	OEM
07-03638	TCM Ret-Valve Spr Outer 35971	—	—	85	Engine Accessories	OEM
07-03719	TCM Insert - Helicoil .33Lg 520112	—	—	85	Consumables / Hardware	OEM
07-03721	TCM Plug - .25-18 X .44 #401751 524818	—	—	85	Consumables / Hardware	OEM
07-03725	TCM Screw - .31-18X.88 Hex.Hd 530346	—	—	85	Consumables / Hardware	OEM
07-03783	TCM Screw .25-20X1.00Lg 535631	—	—	85	Consumables / Hardware	OEM
07-03784	TCM Pin - Dowel .09Dia X.31 535634	—	—	85	Consumables / Hardware	OEM
07-03794	TCM Washer.69 Id X .03 Thk 536213	—	—	85	Consumables / Hardware	OEM
07-03807	TCM Washer.19Idx.03Thk 537690	—	—	85	Consumables / Hardware	OEM
07-03808	TCM Screw.31-18Nc3X2.81 537742	—	—	85	Consumables / Hardware	OEM
07-03809	TCM Screw .31-18 Nc3X1.12 537750	—	—	85	Consumables / Hardware	OEM
07-03811	TCM Tube Assembly - Push Rod 652451 537870	—	—	85	Engine Accessories	OEM
07-03820	TCM Washer - Seal.304X.625X.050 538600	—	—	85	Consumables / Hardware	OEM
07-03831	TCM Hose - 2.75 Id X 1.88 Lg 539023	—	—	85	Engine Accessories	OEM
07-03832	TCM Washer .39Idx.08 Plain 539058	—	—	85	Consumables / Hardware	OEM
07-03852	TCM Retainer Valve Spring Inner 625393	—	—	85	Engine Accessories	OEM