Some of the Yamaha ATVs use a pretty nice automotive style outlet with what appears to be stainless inside. You'll have to replace the connector at the end though. Part# 1HP-H254b-00-00 and retails for $14.56 (2/2012)I tie-wrapped mine to the left support loop for the clutch cable. seems secure and I poked no new holes.
I would recommend getting a water proof outlet though. Something from a boat supply perhaps, the ones from the auto store get a bit funky and rusty in short order.