Hi i have a concern about OEM Coil pack for my WRX 2002 recently i get a faulty 3rd coil damage code so i think is time to remove the all four for a brand new OEM coil pack .,the number printed on each coil is FK0140 and the SKU number is 22433AA561 in the box but when i see the number printed on various sellers on Amazon, eBay, online Subaru stores the number on each coil is totally different ,it reads FK0333 and with the same SKU number , 22433AA561.
Any problem or spec with that? why is different? Amazon and eBay don't know the reason for that and recently i write to the Subaru store to see what they can tell me ,no answer yet.

 

The difference in the printed numbers, like FK0140 versus FK0333, can often be due to updates or revisions in manufacturing. OEM parts may have different production codes while still being compatible with the same SKU, which is why you see the same SKU number (22433AA561) across various listings.