Mercury – Active Trim Kit (Without Trim Pad) | Single Engine | 3.4L V6, 4.6L V8, 150HP FourStroke & OptiMax 150–250HP | 8M0129439

Overview

The Mercury Active Trim Kit (8M0129439) gives you full automatic trim control through your VesselView display instead of a separate trim pad. Designed for single-engine installations, it works with 3.4L V6, 4.6L V8, 150 HP FourStroke, and OptiMax 150–250 HP outboards.

Active Trim adjusts engine trim automatically based on RPM and speed for better acceleration, fuel economy, and overall handling. All setup and control functions are accessed through VesselView 403, 502, 703, or 903 displays, or through Lowrance or Simrad units connected via VesselView Link.

Key Features

• Display-Controlled Trim System – Operated directly through VesselView or compatible Lowrance / Simrad displays.
• Automatic Trim Adjustment – Continuously manages trim angle for faster planing and optimal running efficiency.
• SmartCraft Integrated – Communicates seamlessly with the Mercury VesselView system for plug-and-play setup.
• Improves Efficiency & Ride Quality – Trims the engine automatically to maintain ideal running attitude at all speeds.
• No Trim Pad Required – All adjustments are handled through the VesselView interface.
• OEM Mercury Build – Factory-quality system designed for reliability and long-term performance.

Compatibility

• Single-engine Mercury 3.4L V6, 4.6L V8, 150 HP FourStroke, and OptiMax 150–250 HP outboards
• VesselView 502, 702, or newer displays
• Compatible with VesselView Link connected to Lowrance or Simrad multifunction displays

Performance & Practical Benefits

This system takes the guesswork out of trimming your boat. It automatically fine-tunes trim for acceleration and cruising, improving fuel efficiency, planing speed, and handling. Because control is built directly into the VesselView display, there’s no need for extra dash hardware — everything stays clean, simple, and easy to manage.

Why Buy OEM

Mercury Active Trim kits are engineered for seamless SmartCraft communication. OEM calibration guarantees accurate, responsive trim control with durable components built for saltwater, heat, and vibration.

FAQ

Q1: How is trim controlled with this version?
All Active Trim functions are managed directly through your VesselView display or VesselView Link with Lowrance / Simrad.

Q2: What engines does this support?
It’s designed for single-engine 3.4L V6, 4.6L V8, 150 HP FourStroke, and OptiMax 150–250 HP outboards.

Q3: Does it work with SmartCraft?
Yes — it’s fully SmartCraft compatible and communicates through the VesselView network.

Q4: Does this include a trim pad?
No — this is the VesselView-controlled version, with no physical pad required.

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