Yamaha 703 Side-Mount Remote Control with Trim (10-pin) – For 40–250HP Engines

The Yamaha 703 control box with trim (10-pin) is a full-featured remote control designed for high-end outboard motors. Identified by part number 703-48272-12-00, it builds upon the standard 703 model by adding electric trim/tilt control to its already rich feature set. The single lever still governs throttle and shifting, but now a conveniently located trim/tilt rocker switch is integrated into the handle, allowing you to raise or lower the engine’s tilt without removing your hand from the control. This is especially valuable during dynamic operations – for example, when accelerating onto plane (you can gradually trim out to optimize speed) or when entering shallow water (trim up the engine for protection).

The 10-pin electronic system of this model makes it compatible with all Yamaha engines that use the comprehensive 10-pin harness – generally covering engines from 40 HP and above (including popular 50, 60, 90, 115, 150, 200, 250 HP models, etc.). On these engines, the 10-pin cable carries additional signals for trim, gauges, etc. The 703 control box with trim provides a plug-and-play connection to the motor: simply connect it to the factory harness, and you gain full control over ignition, throttle, gears, and trim. Of course, the unit still features the built-in ignition key and safety lanyard – standard safety equipment. The lever also offers a neutral warm-up capability (same as the 7-pin version), meaning you can advance the throttle in neutral for engine warm-up.

Usage & Recommendations: The Yamaha 703 (10-pin, with trim) is recommended for boats with mid-sized to large outboard engines – typically 40–50 HP and above. This includes RIBs and speedboats in the 5–7+ meter range, fast motorboats and fishing vessels, mid-sized yachts with outboard power, as well as commercial/work boats where full engine control is critical. During installation, the included 10-pin harness (about 5 m in length) needs to be routed from the control box to the engine. It’s best practice to run this harness away from other electrical lines or fuel lines to avoid interference and improve safety.

After installation, you’ll enjoy comprehensive command over your engine: you can start the motor from the helm, adjust throttle and shifting, and trim the engine for optimal performance – all without additional switches or accessories. The ergonomic design of the lever and the placement of the trim switch under your thumb allow intuitive adjustments – for instance, you can fine-tune the engine tilt while accelerating, to find the best speed and fuel economy. The 703’s housing is rugged and vibration-resistant, and its internal mechanisms ensure smooth gear engagements even when using longer control cables on bigger boats (which typically have more friction).

With the Yamaha 703 10-pin remote control with trim, you have confident command of your boat: as conditions change – headwinds, waves, shifting loads – you can instantly adjust engine trim and throttle to maintain optimal stability and efficiency. This control box is proven in practice and favored by many boat owners because it combines Yamaha’s renowned reliability with the convenience of having all functions literally at hand. It streamlines your helm station by integrating multiple controls into one unit, allowing you to focus on piloting your vessel safely and enjoyably.