What is this?

Gopack

First time boat owner and trying to learn stuff in the engine compartment. I’ve been watching a lot of videos but I can’t find anything on this yet. It’s in the back corner with the yellow cap on it, its some kinda pump but what?

Gopack

BTW this is on a 2003 232 captiva 350mag

J3ff

Trim tab hydraulic pump or outdrive lift pump would be my guess. 

aero3113

That’s the outdrive pump. You should have a separate pump for your tabs if you have them.

Willhound

Yep. Outdrive trim/tilt.

Gopack

Thanks guys for the response.. No tabs yet so its the outdrive pump..
Do you have to do any yearly maintenance to it..

LaRea

No maintenance other than routine inspections and fluid level checks. 

Welcome to the forum!  I have a couple recommendations for you as a new boater.  During your first season, plan on visiting your engine room regularly so you can learn what your boat's "normal" looks like.  Also, I'd get some bilge cleaner or degreaser and give that engine room a major scrub-down.  It seems the previous owner wasn't exactly careful about keeping the ER clean.  

Are you trailering, or storing the boat in the water?  Salt water, or fresh?  

Gopack

Thanks for the welcome, I’m trailering and yes it’s gonna get a big scrub down. The boat has been fresh water..