Mercury – Active Trim Mechanical Kit | MerCruiser Dual Engine | 8M0111554

Overview

The Mercury Active Trim Mechanical MerCruiser Dual Engine Kit (8M0111554) is designed for dual-engine mechanical-control MerCruiser sterndrives — specifically the 4.5L and 6.2L 300 & 350 HP models. This system automatically adjusts your engine trim for smoother acceleration, consistent handling, and better overall fuel economy.

With Active Trim, you can leave the trim buttons alone — it continuously adjusts trim based on speed and RPM to keep your boat at its most efficient running angle. The result is faster planing, improved ride quality, and more fuel-efficient cruising.

Key Features

• Automatic Trim Adjustment – Continuously adjusts trim based on speed and RPM for ideal performance.
• Engine Compatibility – Built for dual-engine 4.5L and 6.2L MerCruiser sterndrives (300 & 350 HP).
• Mechanical Control Systems – Works with mechanical (non-DTS) setups.
• SmartCraft Integrated – Communicates directly with your engine system for seamless operation.
• Improves Efficiency & Handling – Optimizes running angle for smoother planing and better fuel economy.
• OEM Quality – Genuine Mercury kit designed for durability and long-term reliability.

Compatibility

• Fits: Dual-engine 4.5L and 6.2L MerCruiser sterndrives (300 & 350 HP)
• System Type: Mechanical controls only (non-DTS)

Performance & Practical Benefits

Active Trim automatically finds and holds the best trim setting for both engines, so you get smoother acceleration, balanced running, and better efficiency. It reacts instantly to throttle changes, helping your boat plane faster and run flatter through varying conditions. It’s one of those “install it and forget it” upgrades that make every trip easier.

Why Buy OEM

Mercury’s Active Trim systems are factory-calibrated to integrate seamlessly with SmartCraft-capable engines. OEM kits deliver precise control, consistent trim performance, and the reliability Mercury products are known for — with hardware built for real marine conditions.

FAQ

Q1: What engines does this kit fit?
It’s for dual-engine 4.5L and 6.2L 300 & 350 HP MerCruiser sterndrives.

Q2: Is this for mechanical or DTS controls?
This version is for mechanical-control sterndrives only.

Q3: What does Active Trim do?
It automatically adjusts trim based on speed and RPM for improved performance and fuel efficiency.

Q4: Is this a genuine Mercury part?
Yes — it’s a factory Mercury Marine kit, made to OEM specifications.