This master cylinder has 10mm brake line fittings but my Odyssey LX has 12mm fittings. The web description didn't say the correct size so I had to return it. If like me you have an Odyssey with 12mm connectors you will need to order M630108 which is described as for the Odyssey EX. The lid was a little heavy on and off, but otherwise it appears to be a well-made replacement part.