Yamaha - Exchanger, heat - 6H4-12466-A0-00 Mercury-50HP-EFI-2015 7620100 ML ACR Charging Relay

7620100 ML ACR Charging Relay 12V 500A with Deutsch Connector

No sudden temperature spikes or worrying warning tones — just a steady stream and a motor that stays happy

ensuring professional

Fits MCM GM V-6 & V-8 engines

Designed to meet strict Mercury Marine original equipment standards

Yamaha - Exchanger, heat - 6H4-12466-A0-00 Mercury-50HP-EFI-2015 7620100 ML ACR Charging RelayYamaha Heat Exchanger Engine Cooling System 6H4 12466 A0 00 Overview When cooling systems start acting up, its not always the obvious stuff like the impellersometimes its deeper in the system. Ive worked on motors where temps crept up slowly, and it traced back to restricted or failing heat exchangers. This part plays a big role in keeping engine temps stable under load. When its working right, the motor runs clean and consistent, even on long runs.