{"id":9970425004272,"title":"2011-2016 GM 6.6L Duramax Coolant Block-Off Plug","handle":"coolant-block-off-plug-duramax-lml","description":"\u003cp\u003eIntended for race trucks that no longer have the need for coolant to flow to the EGR and cabin heater. The Coolant Block-Off Plug is installed in place of the coolant tube. Machined from billet aluminum and comes with a brand-new O-ring.\u003c\/p\u003e","published_at":"2026-04-04T18:35:24-07:00","created_at":"2026-04-04T18:35:24-07:00","vendor":"Pacific Performance Engineering","type":"","tags":["2011-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi8027408","2011-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi5822422","2011-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi4101511","2011-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi5074786","2012-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi3949190","2012-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi8241768","2013-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi8348202","2013-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi6781017","2013-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi3746712","2013-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi4015262","2014-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi4102817","2014-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi8135972","2014-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi7511554","2014-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi5419811","2015-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi1890262","2015-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi1633551","2015-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi7943233","2016-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi7752593","2016-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esr4985574","2016-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi4667560","2016-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi2982779","2016-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi5635040","Coolant System","GM"],"price":3999,"price_min":3999,"price_max":3999,"available":true,"price_varies":false,"compare_at_price":0,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49501432447216,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"119000111","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"2011-2016 GM 6.6L Duramax Coolant Block-Off Plug","public_title":null,"options":["Default Title"],"price":3999,"weight":68,"compare_at_price":0,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_1.jpg?v=1775352926","\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_3.jpg?v=1775352927","\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_2.jpg?v=1775352927"],"featured_image":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_1.jpg?v=1775352926","options":["Title"],"media":[{"alt":null,"id":44161494319344,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_1.jpg?v=1775352926"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_1.jpg?v=1775352926","width":2500},{"alt":null,"id":44161494352112,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_3.jpg?v=1775352927"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_3.jpg?v=1775352927","width":2500},{"alt":null,"id":44161494384880,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_2.jpg?v=1775352927"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/119000111-Coolant-Block-Off-Plug-GM-Duramax-LML_2.jpg?v=1775352927","width":2500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eIntended for race trucks that no longer have the need for coolant to flow to the EGR and cabin heater. The Coolant Block-Off Plug is installed in place of the coolant tube. Machined from billet aluminum and comes with a brand-new O-ring.\u003c\/p\u003e"}