M25 (not the XP) Engine Harness Warning/Upgrade

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M25 (not the XP) Engine Harness Warning/Upgrade

Q: "I've heard about the engine harness upgrade for the engine control panel. Do I need to install this? Where can I get it?"

A: C34s built prior to the 1993 model year run the charging wire from the alternator all the way to the control panel, and then back to the battery, resulting in significant voltage loss. In addition, the control panel wiring employed rubber plugs in the harness, and these plugs are highly vulnerable to corrosion in the marine environment. The upgrade kit, available from Seaward Products, routes the charging cable from the alternator directly to the battery, and substitutes marine-approved terminal strips in place of the vulnerable rubber plugs. If you have a 1992 or earlier C34, THIS IS A MUST! The original harness is highly susceptible to failure due to melt-down at best and possibly fire.