DT115 tilt

[88Enticer]

Hey everyone. I have a 1988 DT115 that was leaking fluid around the tilt rod. I ordered two O-rings from the dealer and after disassembly realized there are two smaller O-rings that are not available. Does anyone think I can match these up with an O-ring from Napa or know what size they are? Are O-rings sold in metric and standard sizes? Thanks, Scott.

[boats.net]

Don't know the size but should be able to match them at NAPA.