Furuno L-Angle Mount Base No. 13-QA310 for the GP-33 GPS Navigator

This is the genuine Furuno L-Angle Mount Base, part No. 13-QA310, made to hold a Furuno GP-33 GPS navigator at the helm. If you're rigging or re-rigging a GP-33 and you want it sitting solid instead of flexing every time you hit a wake, this is the bracket Furuno built for the job.

An L-angle base is the workhorse mount for a fixed-display GPS like the GP-33. It bolts to a vertical or slightly angled surface, a bulkhead, the face of a console, the side of a hardtop leg, and carries the unit out where you can read it. The GP-33 is a compact, dedicated GPS navigator, and it earns its spot on a lot of boats precisely because it's simple and reliable. Mount it well and it just works, trip after trip. The silver finish is meant to match the GP-33 bezel, so the whole install looks like it came that way from the factory rather than something cobbled together in the parking lot.

We see this base go on all kinds of boats. Bay boats and center consoles where the GP-33 rides on the face of the console next to the throttle. Trawlers and pilothouse cruisers where it tucks onto a bulkhead within easy reach of the wheel. Sailboats where it mounts near the companionway or on a pedestal guard. The common thread is a solid, flat-ish surface and a backing plate behind anything thin.

Install is straightforward, but a couple of things are worth doing right the first time. Pick your spot before you drill. You want the GP-33 face roughly square to your eye at the helm, whether you run standing up or sitting down. On a sit-down helm, plenty of folks find the display ends up a touch low, so dry-fit it and check the sightline before you commit any holes. If the mounting surface is thin fiberglass or a hollow panel, put a backing plate behind it. That single step is the difference between a mount that stays tight for years and one that works loose and cracks the gelcoat.

Hardware-wise, treat this like any helm-mounted electronics bracket that lives with constant vibration. Snug the base fasteners down, and a dab of thread-locker plus lock washers keeps them from backing out on an outboard console that buzzes at cruise. Bed the screw holes with a marine sealant so water can't track into the core. And if your mounting surface has any curve to it, you may need thin spacers or shims behind the base so it sits flat and doesn't rock. A mount that rocks will telegraph every bit of vibration straight into the display.

The silver powder finish holds up well, but it's living in salt air, so give it the same courtesy you give the rest of your electronics. A freshwater rinse now and then keeps salt from pitting the surface over the seasons, especially if you run in the tropics or trailer to the coast. Nothing exotic. Just don't let the salt sit.

Height and angle are fixed by the bracket geometry, which is exactly what you want for a permanent helm install. If you need the display to sit higher, a simple riser block under the base gets you there without giving up any rigidity. For most center consoles, walkarounds, and pilothouse helms, the base mounts as-is and puts the GP-33 right where your hand and eye expect it.

Why buy the real Furuno base instead of improvising with a generic bracket? Fit. The 13-QA310 lines up with the GP-33's own mounting pattern, so the unit seats square and the load is carried the way the housing was designed to take it. A mismatched bracket puts stress in the wrong places and never quite looks right. This one does, and it's covered by Furuno's warranty as a genuine part. If you're not sure whether the L-angle base or a flush mount suits your console better, give us a shout and we'll talk it through before you drill anything.