Sierra 18-6798 Trim Motor-Yamaha

Upgrade your Yamaha outboard's performance with a reliable trim motor that keeps your boat responsive and ready for the water. This aftermarket solution delivers the power and precision needed for smooth adjustments, whether you're fighting currents or cruising calm waters. Designed as a direct replacement, it restores full functionality to your power trim and tilt system without the premium cost of OEM parts.

Seamless Fit for Your Yamaha Outboard

Engineered to match original specifications, this trim motor installs effortlessly on a range of popular Yamaha four-stroke models. It replaces OEM part numbers 69J-43880-00-00 and 60V-43880-00-00, ensuring plug-and-play compatibility. Key models include:

• F200, F225 (2004-2006)
• F250 (2005-2006)
• LF200, LF225, LF250
• LZ200, LZ225, LZ250 (2004-2006)

Before installation, double-check your engine's serial number against these fits to confirm a perfect match. This precision compatibility minimizes downtime and gets you back on the water faster.

Built to Withstand Harsh Marine Conditions

Crafted with corrosion-resistant materials and sealed components, this trim motor tackles saltwater exposure, freshwater splashes, and constant vibration. High-quality brushes and windings provide consistent torque for lifting heavy outboards, while thermal protection prevents overheating during extended use. Boaters report longer service life compared to worn OEM units, especially in demanding offshore applications.

Boost Performance and Reliability

A failing trim motor leads to sluggish response, uneven planing, and safety risks on rough seas. Replacing it restores optimal trim control, improving fuel efficiency, handling, and rider comfort. Pair it with routine hydraulic fluid checks for peak system performance—many users notice immediate improvements in motor speed and quiet operation.

DIY Installation Tips for Quick Results

Most installations take under an hour with basic tools. Disconnect the battery, remove the cowling, and unbolt the old motor from the hydraulic pump assembly. Transfer any mounting hardware, connect the wiring harness, and test in shallow water. Pro tip: Apply dielectric grease to terminals to fend off corrosion. If your system has air in the lines, bleed it properly to avoid strain on the new motor.

Common Trim Motor Issues and Solutions

Spot early signs like slow trimming, unusual noises, or fluid leaks to prevent total failure. Causes often include worn brushes from age, contaminated hydraulic fluid, or electrical shorts from saltwater intrusion. Regular maintenance—like flushing the system annually—extends life significantly. This replacement addresses these pain points head-on, offering a cost-effective fix over full pump rebuilds.

Why Boaters Trust This Replacement

Backed by rigorous testing, it matches or exceeds factory torque ratings (around 50-60 inch-pounds at 12V), ensuring your Yamaha handles like new. Independent tests show superior brush life in wet environments, making it a favorite among fishing guides and weekend warriors alike. Invest in reliability without compromise.