Type R Club of America

Under the Intake Manifold category for dealership parts, there are 2 different part numbers for the injector seals.

16472-P0H-A01
Seal Ring, Injector (NOK)

16472-P10-A01
Seal Ring, Injector

I'm collecting all new parts around the intake manifold and the rest of the car in the event I go back to stock. Usually, part numbers that replace each other are the same dimensions but the manufacturer changes. In this case, one seal is actually much thicker (and expensive) than the other.

Which is the true part number? The thicker or thinner one?

They will both work equally would be my guess. It is strange though the difference in price.

I've asked Cris from IRUNOEM to confirm and chime in. FYI one can always reach out to Cris directly via phone or email to confirm. Reference:
https://www.acuraexpressparts.com/irunoem