Factory New Lycoming OEM Parts.
CYLINDER AND HEAD ASSEMBLY ONLY DOES NOT INCLUDE:
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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Yes, they will have serial numbers.
On the older LW- series cylinders we recorded the Heat Code number that is located on the side of the cylinder head. Difficult to see when the engine is assembled.
On the new cylinders Lycoming records the numbers between the pushrod tubes on the back of the last fin of the cylinder head. This number will be facing the crankcase between the pushrod tubes.