Mercury – Remote Trim Harness | Single / Dual Engine Trim Routing | 84-8M0175109

Overview
This harness gives you a clean, direct way to run remote trim controls on single- or dual-engine setups without digging through a maze of wiring. It keeps the trim circuit straightforward, which makes the helm feel more predictable when you’re easing the bow up or down. The layout stays tidy, so you’re not fighting clutter every time you open the rigging bay. It’s one of those simple pieces that keeps day-to-day boating a little easier.

Key Features
    • Remote Trim Pathway – Provides the wiring run for remote trim control.
    • Single / Dual Use – Works for one- or two-engine trim layouts.
    • Clean Routing – Keeps trim wiring organized and easy to follow.
    • OEM Connectors – Uses factory terminals for a tight, reliable fit.
    • Steady Signal Flow – Helps keep trim response consistent at the helm.

Engine & Boat Compatibility
    • Single engine
    • Dual engine
    • Digital trim pathways

Performance & Practical Benefits
A dedicated trim harness keeps the controls feeling smooth instead of jumpy or inconsistent. It’s easier to trace the wiring later when something needs checking, and the tidy layout prevents strain that leads to loose connections. Whether you’re trimming up onto plane or making small bow adjustments, the response feels more natural. It just makes the rig feel better put together.

Why Buy OEM
OEM trim harnesses stay locked in place through vibration and long seasons on the water. The connections fit the system exactly as Mercury designs them, cutting down on strange trim behavior or weak signals. It’s dependable wiring that holds up over time.

FAQ
Q1: How do I know I need this harness?
A: If your remote trim controls need a dedicated run to the engines or your existing harness is too short or worn, this one fills that role.

Q2: Does the harness need calibration?
A: No—once connected, it simply carries the trim signal.

Q3: How does it handle saltwater?
A: Rinse occasionally and check the connectors; it holds up well in marine environments.

Q4: Any installation tips?
A: Route it in a relaxed path without sharp bends to keep strain off the connectors.

Q5: What are early signs the harness is wearing out?
A: Slow or inconsistent trim response, intermittent switch behavior, or signs of connector corrosion.