Mercury – Dual Engine LCM Zero Effort Kit | Legacy Control Module | 98-8M0165552

Overview
This kit gives older dual-engine Zero Effort Controls a clean path into the newer Digital Throttle and Shift harnessing. It keeps the familiar feel at the helm while letting the system run through modern wiring that’s steadier and easier to work with. With two modules and the harness included, the setup stays organized instead of turning into a mess behind the dash. It’s a practical way to modernize a twin-engine boat without tearing out gear that still works well.

Key Features
    • Dual Legacy Control Modules – Allows older Zero Effort Controls to operate with Next Gen DTS.
    • Twin Engine Design – Built specifically for dual-engine configurations.
    • Included Harness – Provides the needed wiring path for both modules.
    • Digital System Integration – Brings legacy throttle hardware into modern DTS rigging.
    • Additional Harness Required – Key switch harness must be purchased separately.

Engine & Boat Compatibility
    • Zero Effort Controls
    • Next Gen Digital Throttle and Shift
    • Dual engine layouts

Performance & Practical Benefits
With the modules tied in, throttle response tends to feel smoother and more even between the two engines. The wiring isn’t fighting you anymore, and the helm becomes easier to service because everything follows a predictable DTS layout. Dockside maneuvering gets less touchy, and the whole system feels more settled. It’s one of those upgrades you appreciate most after a long day running tight channels or busy marinas.

Why Buy OEM
OEM gear keeps engine communication steady so the controls behave the same every time you use them. The fittings line up the way Mercury intended, which cuts down on odd glitches and loose connections. It’s built to handle heat, movement, and years of vibration without giving you trouble.

FAQ
Q1: How do I know I need this kit?
A: If you’re keeping dual Zero Effort Controls but switching to Next Gen DTS wiring, this kit makes the two systems work together.

Q2: Does anything need calibration afterward?
A: No—DTS handles its own setup once everything’s connected.

Q3: Will it hold up in saltwater?
A: Yes, just stick to normal rinsing and inspection, especially around the harness.

Q4: Any installation tips?
A: Make sure you have the key switch harness on hand—it’s required to finish the setup.

Q5: What are signs the modules may need attention?
A: Uneven throttle response, hesitation between engines, or jittery digital behavior are common early clues.