Mercury – Active Trim Kit (Without Trim Pad) | Mechanical MerCruiser | Dual Engine | 8M0129458

Overview

The Mercury Active Trim Kit (8M0129458) provides full automatic trim control for dual-engine mechanical MerCruiser sterndrives, giving you smoother handling, faster planing, and better fuel efficiency — all managed through your VesselView display instead of a physical trim pad.

Designed for 4.5L and 6.2L 300–350 HP mechanical sterndrives, the system continuously adjusts both drives based on speed and RPM to maintain the ideal running angle. Control and setup are done directly on your VesselView 502, 702, or newer display, or through Lowrance or Simrad multifunction displays connected via VesselView Link.

Key Features

• Display-Controlled Trim System – Operated directly through VesselView or compatible Lowrance / Simrad displays.
• Dual-Engine Auto Trim – Adjusts both drives simultaneously for balance, performance, and efficiency.
• SmartCraft Integrated – Connects easily to your Mercury VesselView network for seamless operation.
• Hands-Free Control – Automatically trims your drives to improve planing and cruising comfort.
• Performance & Efficiency Boost – Keeps your boat balanced for smoother handling and reduced fuel consumption.
• OEM Mercury Build – Genuine factory-quality kit built for reliability and long-term durability.

Compatibility

• Dual-engine mechanical MerCruiser 4.5L and 6.2L sterndrives (300–350 HP)
• VesselView 502, 702, or newer displays
• Compatible with VesselView Link connected to Lowrance or Simrad multifunction displays

Performance & Practical Benefits

This version of Active Trim takes control of both drives automatically, optimizing trim for every throttle position. It reacts instantly to acceleration or changing conditions, giving you quicker planing, smoother cruising, and better balance at speed. With full control through your VesselView display, your dash stays clean and streamlined.

Why Buy OEM

Mercury’s Active Trim kits are built for perfect integration with SmartCraft and VesselView systems. Each unit is factory-calibrated and tested for real-world marine conditions, delivering accurate trim control, precise response, and lasting reliability.

FAQ

Q1: How is the trim controlled with this system?
All trim functions are managed directly through your VesselView display or VesselView Link paired with a Lowrance / Simrad display.

Q2: What engines does this support?
It’s designed for dual-engine mechanical MerCruiser 4.5L and 6.2L sterndrives rated between 300–350 HP.

Q3: Does this version include a trim pad?
No — it’s fully controlled through the VesselView interface, with no external pad required.

Q4: Does it integrate with SmartCraft?
Yes — it’s fully SmartCraft-compatible for plug-and-play setup.

Q5: Is this a genuine Mercury product?
Yes — it’s a factory Mercury Marine kit, built to OEM standards.