BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz GLS550 (X166) M278 4.7L V8 BiTurbo (2015 – 2019) Niken Silicon print on fingertips for

Silicon print on fingertips for optimized grip with the bike’s controls

The OnX6 plus LED light bar also integrates Baja Designs’ trademarked High Speed Spot reflector

Sport-style fit with extended back for greater coverage in the riding situation

durable and offers excellent abrasion resistance

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BlackBoost Coolant Wide Open Thermostat for Mercedes-Benz GLS550 (X166) M278 4.7L V8 BiTurbo (2015 – 2019) Niken Silicon print on fingertips forBlackBoost Coolant Wide Open Thermostat for Mercedes Benz GLS550 (X166) M278 4. 7L V8 BiTurbo (2015 2019) Racing Coolant Thermostat. With BlackBoost Racing Coolant Thermostat the coolant circulation with the radiator is always at 100% open. The factory coolant thermostat opens at 100C 212F. Only for racing application, not recommended be used under very cold weather conditions. Note : Prior to check out, please click here to confirm product