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The Sinister Diesel coolant filtration system is specified for 2011–2016 GM Duramax LML (new style) engines and serves to filter engine coolant to help manage particulate contamination. The system is offered as a service and preventative maintenance component tailored to the Duramax LML cooling system, intended for owners seeking improved coolant cleanliness.
Sinister Diesel 11-16 GM Duramax LML (New Style) Coolant Filtration System
