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Sinister Diesel Coolant Filtration System for 2001-2010 GM Duramax 6.6L LB7/LLY/LBZ/LMM
Add years of life to your diesel engine with this Coolant Filter Bypass System. Removing contaminates such as the casting sand and metal shavings means your engine's water pump, EGR cooler and oil cooler will last longer. This kit is designed to bypass and filter small amounts of the engine’s co...
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