Merchant Automotive 10089 Billet Coolant Block-Off Plate

Get the Merchant Automotive 10089 Billet Coolant Block-Off Plate from CDP for your 2001-2022 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5P. Merchant Automotive designed this durable replacement plate to eliminate the coolant leaking issue on your Duramax engine. The factory coolant block-off plate has a cast design with a gasket. Over time, this plate commonly begins to leak. Merchant Automotive manufactured this billet block-off plate with a built-in O-ring seal for a leak-free installation.