O rings were included after a week I finally get an answer to a question that takes five seconds to spit out! Hallelujah!!! An answer coupled with attitude about how I'm being unreasonable by mentioning my patience is wearing thin regarding this question and that I need an answer ASAP. You get what you pay for hopefully the work is good cause to this point the time frames quoted and met and customer service regarding questions has been "run around" like at best. Jerry didn't even do my engine work and made time to answer an email in great detail regarding my jetting the same day I sent it. Lesson learned by this guy right here!!