Attwood 75116 Locking 360 Boat Seat Swivel

The Attwood 75116 is a locking seat swivel that sits between your boat seat and its pedestal, giving you a smooth full-circle turn and a solid lock when you want to stay put. It's built from powder coated steel in black, so it holds up to the wet, salty life a boat seat lives. Simple part. Does one job, does it well.

Here's where it earns its spot. A fixed seat is fine until you're netting a fish behind you, reaching for a rod on the gunnel, or you just want to face your buddy while you idle out of the no-wake zone. This swivel lets the seat spin freely through a full 360 degrees, then locks down so you're not sliding around when the boat's up on plane or taking chop on the beam. The lock is a lever you flip with your foot or hand, and it holds the seat square right where you set it. That matters more than it sounds. A seat that keeps spinning while you're running is a real hazard, and this one stays put once you set the lock.

It fits most standard seat hole patterns, which is the four-bolt layout you'll find on the bottom of the vast majority of marine seats and the top of most pedestals. If your deck is thin aluminum, like a lot of jon boats and skiffs, back the bolts with fender washers so they don't pull through under load. We've seen plenty of these go onto jon boats, aluminum skiffs, and center console casting platforms with no trouble. On a low-profile bay boat, measure your leg clearance first, since adding a swivel raises seat height a touch.

One thing to be clear about. This is the swivel only. No seat, no pedestal, and no mounting hardware in the box. You're bolting it to gear you already have or buying the rest separately. Most folks pair it with a fixed 13 to 15 inch pedestal, which leaves comfortable leg room once the swivel adds its own height. If you go too tall on a small tiller boat, you'll crowd the space, so think about the whole stack before you drill.

Install is straightforward. Bolt the swivel to the pedestal top, bolt your seat to the swivel, and torque everything down. A little blue thread locker on the bolts is cheap insurance against the constant vibration a boat puts through hardware. Re-torque after your first ten hours on the water, because that's when a fresh install tends to settle and back off a hair. If your deck plate isn't perfectly flat, a couple of rubber washers as shims will stop the seat from rocking side to side before you make the final pull.

Maintenance is easy, but don't skip it. Salt, sand, and grit are the enemy of any moving part on a boat, and the locking lever is no exception. A quick shot of silicone spray every month or so keeps the lock working smooth and stops it from seizing up. Give the whole swivel a fresh water rinse when you rinse the rest of the boat. And if the powder coat ever gets nicked down to bare steel at a bolt hole, hit it with a dab of paint so it doesn't start weeping rust.

For the money, the 75116 is an honest upgrade to any fixed seat setup. It's the kind of part you install once and forget about, as long as you give the lock its monthly spritz and keep an eye on the bolts. Whether you're rigging a fresh build or replacing a tired old swivel that's developed play, this one gets a working, locking seat back under you.