12v Aux Starter Battery Replacement

[Chrispy44]

No stores around me (Cleveland, Ohio, USA) had the 12v battery match. O'Reilly's had this Super Start Platinum AGM Top Post Battery Group Size 51R - 51RTPLT battery for $245. Everything fit perfectly except the vent tube hole was too small. I used a 5/16" drill bit and carefully made the vent hole larger. It probably should of been a metric size for a better fit. I just wrapped the vent tube male-end with some plumbers tape to get a more tight fit and then put duct tape around once inserted to hold securely in. Everything seems to fit once I did those things. I needed a 10mm long socket for everything but the back storage compartment needed a Phillips head screw driver. I hope this info helps someone. My local dealership wanted $426.60 for just the battery not installed.