Tilt/Trim Motors
Sierra 18-6273-1 Power Tilt and Trim Assembly for Mercury/Mariner Outboard Motors
Sierra 18-6769-1 Low Pressure High Flow Tilt/Trim Pump for MerCruiser Sterndrives
Quicksilver 891736T OEM Trim Motor Assembly for Mercury MerCruiser Oildyne Pump
What Is a Tilt/Trim Motor?
Tilt/trim motors are a critical — and often overlooked — component of any powered boat equipped with an outboard or sterndrive engine. Tilt/trim motors are the electric motors at the heart of the hydraulic system that lets you pivot your engine in and out of the water and fine-tune its running angle at the push of a button.
Understanding the distinction between tilt and trim helps clarify why this system matters so much. Trim refers to the fine adjustments made while underway — rotating the drive a small amount to optimize the angle of thrust for speed, fuel efficiency, and ride comfort. Tilt, on the other hand, is the more dramatic movement: lifting the engine fully out of the water for trailering, docking, or navigating shallow areas where the propeller could strike bottom.
Together, these two functions make up a single integrated hydraulic circuit, and the electric motor driving it all is the tilt/trim motor. Without a properly functioning unit, boaters lose the ability to adjust their engine's running attitude — which directly impacts planing performance, fuel economy, bow rise, and overall handling. A failing tilt/trim motor can make it impossible to raise the engine for trailering or lower it correctly for departure, leaving you stuck at the dock or at risk on the water.
Why Tilt/Trim Motor Condition Matters
Most modern recreational boats rely on a power trim system that uses electrically controlled hydraulic actuators to move the drive. The electric tilt/trim motor pressurizes the hydraulic fluid that extends or retracts the trim and tilt rams. When this motor begins to fail — whether from worn brushes, corrosion, or hydraulic issues — you may notice sluggish response, uneven movement, or no movement at all. Catching and replacing a worn motor early prevents more extensive hydraulic system damage and keeps you on the water rather than in the shop.
When shopping for a replacement tilt/trim motor, it's important to match the part to your specific engine brand, model, and year. Factors like wire count, rotation direction, and mounting configuration vary significantly across outboard and sterndrive applications. Always verify OEM cross-reference numbers before purchasing.
Top Brands in Tilt/Trim Motors
Engineered Marine Products (EMP) is a well-established name in the marine aftermarket, having supplied quality marine engine components to OEMs, dealers, and service professionals for over 40 years. EMP offers a broad lineup of tilt/trim motors with coverage spanning major outboard and sterndrive brands including Mercury/Mariner, BRP (Johnson/Evinrude), Yamaha, MerCruiser, OMC, and Volvo Penta — all backed by a 2-year parts and labor warranty.