Trim Actuator SEI MARINE 9B-116-02

Compatible Engines

The original port (left) trim actuator from SEI MARINE, catalog number 9B-116-02, is a critical component of the hydraulic system responsible for precise adjustment of the stern angle of an outboard motor. This solution is dedicated exclusively to units equipped with the Alpha One Gen II system. The primary beneficiary of this part is owners of MERCRUISER engines, including models produced between 1991-2018. Thanks to perfect geometric fit and hydraulic parameters, this actuator ensures smooth operation of the trim mechanism, which translates into safety and comfort during navigation. Using parts from a proven manufacturer like SEI MARINE guarantees durability and compliance with original design standards, eliminating the risk of failures resulting from the use of cheap replacements of unknown origin.

Installation, Setup, and Operational Advice

Replacing the trim actuator is an operation that requires caution, but with basic safety rules, it is achievable even for advanced users. Before starting work, disconnect the battery to avoid accidental activation of the hydraulic pump. When removing the old part, prepare a container for potential hydraulic oil leaks – this is a substance that can stain the boat deck. The new SEI MARINE actuator weighs only 3.05 kg, which facilitates handling. After installing the new piece, before heading out on the water, perform a few trim cycles in place to remove air from the system and check the correct operation of both actuators (left and right). Remember that regular inspection of seal and hose condition will extend the life of the entire trim system.

• Fully compatible with MERCRUISER engines from 1991-2018 equipped with the Alpha One Gen II system.
• Original manufacturing quality from SEI MARINE ensuring long-term reliability.
• Precise trim angle adjustment, optimizing boat performance and reducing fuel consumption.
• Easy installation thanks to standard dimensions and simple mounting mechanism.
• Stable operation in harsh weather conditions thanks to high corrosion resistance.