Mercury – Active Trim Kit | Dual Engine | 3.4L V6, 4.6L V8, 150HP FourStroke & OptiMax 150–250HP | 8M0111552

Overview

The Mercury Active Trim Kit (8M0111552) is designed for dual-engine installations using Mercury’s 3.4L V6, 4.6L V8, 150 HP FourStroke, or OptiMax 150–250 HP outboards. This system automatically adjusts both engines’ trim for better performance, smoother acceleration, and improved fuel efficiency — all without manual input.

By automatically optimizing trim based on engine RPM and boat speed, Active Trim delivers consistent handling, faster planing, and the best possible running attitude in any conditions. It’s a true set-it-and-forget-it upgrade for twin-engine boats.

Key Features

• Dual-Engine Compatibility – Works with 3.4L V6, 4.6L V8, 150HP FourStroke, and OptiMax 150–250HP outboards.
• Automatic Trim Adjustment – Adjusts engine trim in real time for smooth, efficient operation.
• SmartCraft Integration – Plug-and-play setup with Mercury’s SmartCraft system.
• Better Fuel Economy – Maintains the ideal running angle for maximum efficiency.
• Simplified Operation – No need to manually trim; the system adjusts automatically.
• OEM Quality – Genuine Mercury kit built for reliability and long-term use in marine environments.

Compatibility

• Fits: Dual-engine 3.4L V6, 4.6L V8, 150 HP FourStroke, and OptiMax 150–250 HP Mercury outboards
• System Type: SmartCraft-compatible outboards

Performance & Practical Benefits

With dual Active Trim, both engines work together to maintain perfect balance and performance. It trims down for acceleration and trims up for cruising — automatically. The result is quicker planing, smoother handling, and reduced fuel burn. It’s one of those upgrades that instantly makes boating easier and more enjoyable.

Why Buy OEM

Mercury’s Active Trim kits are engineered specifically for their engines and SmartCraft systems. OEM design ensures accurate response, easy installation, and reliable performance that aftermarket systems simply can’t match.

FAQ

Q1: What engines does this kit fit?
It’s made for dual-engine setups with 3.4L V6, 4.6L V8, 150 HP FourStroke, and OptiMax 150–250 HP outboards.

Q2: Does it require SmartCraft?
Yes — it integrates directly with SmartCraft-capable systems.

Q3: Can it control both engines independently?
Yes — the system monitors both engines and adjusts trim automatically for balanced performance.

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