Mercury – Gen II Panel Mount Remote Control, Lock Bar, With Trim and Trailer Switch | Outboard Control | 883710A03

Overview

This control is meant for the bigger Mercury outboards that run external trim cylinders and need a little more going on at the handle. It’s solid, mechanical, and feels like the controls most of us learned on years ago. The chrome handle has some weight to it, and the lock bar helps keep shifts intentional when you’re close to the dock or lining up on the trailer. It’s built for heavier boats that actually get run, not ones that just sit.

Key Features

 • Chrome Handle with Lock Bar – Feels sturdy in your hand and keeps shifts deliberate instead of sloppy.
 • Trim and Trailer Switch Harness – Four foot harness with a four-pin Molex connector supports trim and trailer functions.
 • Gen II Cable Requirement – Designed to be used only with Gen II throttle and shift cables.
 • Long Neutral Safety Leads – Six and a half foot leads with bullet connectors make rigging less cramped.
 • Lanyard Switch Leads – Bullet connectors allow quick, clean hookup of the safety lanyard.

Engine & Boat Compatibility

 • Mercury outboard engines with external trim cylinders
 • Mariner outboard engines with external trim cylinders
 • Mercury Marine three point four liter outboards
 • Mechanical control systems
 • Gen II control series

Performance & Practical Benefits

Once installed and adjusted, this control feels steady and predictable, even on heavier hulls. Shifts at idle are smooth without that hard clunk you get from worn controls. Trim and trailer functions are easy to manage when setting the running angle or loading the boat. It behaves the same every trip, which is what you want from a control.

Why Buy OEM

OEM Mercury controls are built to match Mercury trim systems and cable geometry exactly. That makes rigging cleaner and keeps the neutral safety working the way it should. They also tend to hold up better to vibration and long hours on the water. For larger outboards, OEM usually saves time and headaches.

FAQ

Q1: How do I know if I need a trim and trailer switch control?
A: If your outboard has external trim cylinders and a trailer function, this is the correct control style.

Q2: What parts are required to complete installation?
A: You will need a separate ignition and choke assembly, Gen II throttle and shift cables, and the correct trim extension harness.

Q3: Is the trim extension harness included?
A: No, the extension harness must be ordered separately based on the trim connector used on the engine.

Q4: Does this control need any calibration after install?
A: No electronic setup is required, but proper cable adjustment during installation is important.

Q5: What usually shows up when this control starts wearing out?
A: Shifting can get stiff, trim response may feel inconsistent, or neutral can be harder to find.