MERCURY 75 to 125Cv Complete Trim PT-0016

Complete replacement of the hydraulic trim assembly for a Mercury/Mariner outboard motor
Ready-to-install kit: electric motor, hydraulic pump, and cylinders included
Fully restores the engine’s tilt and lift functions

Please note that this item can only be returned or exchanged under special conditions. Do not hesitate to contact us if you wish to have confirmation of the application.

€1,380.00

Shipped from 09/29/2026

Description MERCURY 75 to 125Cv Complete Trim

Overview

The MERCURY 75 to 125Cv Complete Trim Kit is a fully integrated hydraulic trim system, delivered ready for installation. It combines the electric motor, hydraulic pump, and trim cylinders into a single replacement unit. This solution is recommended when multiple components fail simultaneously, as it optimizes the cost-to-time ratio of the repair compared to replacing parts individually.

Technical Specifications

Complete Mercury Mariner 75 to 115Cv Trim Kit

Compatible Part

75, 90 3-Cylinder 2-Stroke
100, 115, 125 4-cyl 2-stroke
75, 90, 115, 125 DFI 1.5L 3-cylinder Opyimax
75, 90 4-stroke carburetor
75, 80, 90, 100, 115 EFI 4-stroke

Part Numbers: 818903A1, 830250A1, 830250A3, 830250T3, 830250T5, 830250T08, 898447T01, 8M0055014, 8M0090335, 8M0171818

Verification recommended using the engine serial number

Recommended operating conditions

Turn off the power before removing any parts. Disconnect the hydraulic hoses and immediately plug the fittings to minimize fluid loss. Remove the tilt shaft and the cylinder mounting screws, then install the new assembly according to the torque specifications in the Mercury manual. Fill the hydraulic oil reservoir and bleed the system by performing about ten complete trim cycles.

Technical Benefits

Replacement of the entire engine, pump, and cylinder assembly in a single service call
Eliminates complex diagnostics associated with the simultaneous failure of multiple components
Original hydraulic seals guarantee no leaks from the very first start-up
Certified compatibility with the listed Mercury engines

Usage and Maintenance Guidelines

Replacement Frequency: The complete trim assembly should be replaced in the event of multiple irreparable failures. Estimated service life of 8–15 years, depending on operating conditions.
Best practices: Check the hydraulic oil level at the start of the season. Rinse the housing with fresh water after each outing in saltwater.
Safety Precautions: Never manually force the motor cylinders when the power is off. Check the polarity of the electrical connections before turning on the power.

Frequently Asked Questions

What is the difference between a complete trim kit and a repair kit?

A complete trim kit replaces the entire hydraulic system. A repair kit contains only the wear parts (seals, rods) needed to service the existing system. The complete trim kit is recommended if the electric motor or pump is also faulty.

Is it necessary to bleed the system after installation?

Yes, bleeding is essential. Fill the reservoir, perform about ten complete trim cycles to remove air from the system, then check the level and top it off if necessary.

Is the motor’s serial number required to place an order?

It is strongly recommended. There are variations depending on the year of manufacture, particularly regarding hydraulic and electrical connections. The serial number prevents any compatibility errors when ordering.