Trim Pump Relay SIERRA 18-5851

Compatible Engines

The SIERRA 18-5851 trim pump relay is a vital component of the electrical system, ensuring smooth and safe operation of the mechanisms that adjust the outboard motor's tilt angle. While raw data may suggest compatibility with units like the Mercruiser 350 MAG 5.7L, we strongly recommend verifying compatibility for other configurations. The most reliable method is to compare the catalog number 18-5851 with your engine's technical documentation or check the original OE number. If you have any doubts about fitting this part to a specific boat or engine model, contact our customer support – we are happy to help you select the correct part to avoid ordering errors.

Installation and Operation

• Original Quality Replacement: The Sierra brand product guarantees durability and compliance with manufacturer standards, ensuring a long service life.
• Fast System Response: Stable power supply to the trim pump translates to precise and rapid response to changes in the tilt angle.
• Easy Replacement: Compact dimensions (4 x 4.5 x 3.5 cm) and low weight (0.04 kg) facilitate access to the engine compartment during servicing.
• Water Safety: A functioning relay prevents failures during the cruise, maintaining the optimal position of the motor.

During installation, pay attention to correct wire connections according to the diagram to avoid short circuits. Regular inspection of the electrical system before the boating season is the best investment in your comfort and safety on the water.