Bosch Oil filter 3330 on the ST1100

Sunday Rider · 2026-03-10T08:19:37-0500

Has anyone used the Bosch 3330 oil filter on the ST1100? I got a killer deal on them as I saw them as one of the alternative oil filters to OEM sometime ago. I've been using the Bosch 3323 for the last few years. In comparison to the 3323, the 3330 is shorter and wider than the 3323.

Al st1100 · 2026-03-10T08:32:17-0500

Sunday Rider said:
Has anyone used the Bosch 3330 oil filter on the ST1100? I got a killer deal on them as I saw them as one of the alternative oil filters to OEM sometime ago. I've been using the Bosch 3323 for the last few years. In comparison to the 3323, the 3330 is shorter and wider than the 3323.

As far as I can see they both use the same premium filter media so I would suspect the other internal are the same.

Sunday Rider · 2026-03-10T11:10:00-0500

Al st1100 said:
As far as I can see they both use the same premium filter media so I would suspect the other internal are the same.

I am more worried about the O ring seal as it is slightly larger in diameter than the 3323.

Uncle Phil · 2026-03-10T11:48:08-0500

Sunday Rider said:
I am more worried about the O ring seal as it is slightly larger in diameter than the 3323.

That would concerned me also.

Sunday Rider · 2026-03-10T12:08:58-0500

Uncle Phil said:
That would concerned me also.

I guess I will wait for the summer oil change and will try to see how it lines up to the smooth seal surface on the engine.

Al st1100 · 2026-03-10T14:08:10-0500

Sunday Rider said:
I am more worried about the O ring seal as it is slightly larger in diameter than the 3323.

take a light coat of oil on the engine oil filter mounting surface, lightly screw on the oil filter dry just enough to make contact and take it off. The oil should leave a picture of how much and where there is contact. That should tell if there is enough sealing surface.