Fresh to the Pulsar world here, so forgive me but I've searched and searched and cannot find an answer, so I'm pulling a thread from the dead here, but has anyone got the Part No. for the seal the OP was referring to? Mine is leaking as well. Thought I had the right seal (fellow I bought it from left it in the glove box and said he was gonna change it eventually. Went to change it last night, got it all apart and found the seal to be the wrong one. Fortunately, I didn't pull the seal, then check. ha ha. Any help on this would be definitely appreciated.