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
07-14515	14W22647 Lycoming Roller-Dynamic Cweight- 4.81 Order	—	—	85	Engine Accessories	OEM
07-14516	15B26262 Lycoming Body - Hydraulic Tappet	—	—	85	Engine Accessories	OEM
07-14517	15B28037 Lycoming Lifter - Hydraulic - Hyperbolic (Assembly)	—	—	85	Engine Accessories	OEM
07-14575	15G23487 Lycoming Tube - Push Rod Shroud	—	—	85	Engine Accessories	OEM
07-14577	15G23494-C Lycoming Tube - Push Rod Shroud(Chrome)	—	—	85	Engine Accessories	OEM
07-14579	15M19407 Lycoming Camshaft Assembly	—	—	85	Engine Accessories	OEM
07-14580	15M23452 Lycoming Camshaft Assembly Roller Lifter	—	—	85	Engine Accessories	OEM
07-14581	15M23454 Lycoming Camshaft Assembly Roller Lifter (Rev. Rot.)	—	—	85	Engine Accessories	OEM
07-14582	15M23456 Lycoming Camshaft Assembly Roller Lifter	—	—	85	Engine Accessories	OEM
07-14583	15M23496 Lycoming Camshaft Assembly Roller Lifter	—	—	85	Engine Accessories	OEM
07-14584	15N23374 Lycoming Camshaft Assembly Roller Lifter	—	—	85	Engine Accessories	OEM
07-14588	16A22541 Lycoming Cylinder Assembly	—	—	85	Engine Accessories	OEM
07-14590	16A26081 Lycoming Cylinder & Head Assembly (Nitrided Bore)	—	—	85	Engine Accessories	OEM
07-14591	16B21508 Lycoming Cylinder Assembly Nitrided	—	—	85	Engine Accessories	OEM
07-14593	16P21709-P10 Lycoming Guide - Valve - Intake	—	—	85	Engine Accessories	OEM
07-14594	16P21709-P20 Lycoming Guide - Valve - Intake	—	—	85	Engine Accessories	OEM
07-14597	16R19730-P20 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14603	16R21705-P40 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14605	16R21710-P10 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14606	16R21710-P20 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14607	16R21710-P30 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14611	16R22021-P30 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14612	16R22291-P10 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14613	16R22291-P20 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14615	16R22291-P40 Lycoming Guide - Valve - Exhaust(Ni-Resist)	—	—	85	Engine Accessories	OEM
07-14618	16T19468-P30 Lycoming Seat - Valve - Exhaust	—	—	85	Engine Accessories	OEM
07-14619	17A23937 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14620	17A23939 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14621	17A23942 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14622	17A23943 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14623	17A23945 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14624	17A23946 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14625	17A23947 Lycoming Valve - Intake	—	—	85	Engine Accessories	OEM
07-14628	17B23935 Lycoming Valve - Exhaust	—	—	85	Engine Accessories	OEM
07-14630	17B23944 Lycoming Valve - Exhaust	—	—	85	Engine Accessories	OEM
07-14637	17F23342 Lycoming Rocker - Machining -Assembly(1.4 Ratio)	—	—	85	Engine Accessories	OEM
07-14638	17F23345 Lycoming Rocker - Machining -Assembly(1.3 Ratio)	—	—	85	Engine Accessories	OEM
07-14641	17F23346 Lycoming Rocker - Machining -Assembly(1.5 Ratio)	—	—	85	Engine Accessories	OEM
07-14642	17J26469 Lycoming Cover Assembly - Rocker Box	—	—	85	Engine Accessories	OEM
07-14707	21A21533-03 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14708	21A21533-04 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14710	21A21533-06 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14714	21A21533-14 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14715	21A21533-16 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14717	21A21533-19 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14718	21A21533-21 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14725	21A21534-07 Lycoming Housing Assembly Accy-Studding	—	—	85	Engine Accessories	OEM
07-14729	21A21651-02 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14730	21A21651-04 Lycoming Housing Assembly Accessory	—	—	85	Engine Accessories	OEM
07-14731	21A26241-01 Lycoming Housing Assembly - Accessory - Studding	—	—	85	Engine Accessories	OEM