{"id":13642,"date":"2026-10-25T06:48:25","date_gmt":"2026-10-25T14:48:25","guid":{"rendered":"https:\/\/www.shrautoparts.com\/product\/12662659-def-injector-for-gm-silverado-duramax-6-6l\/"},"modified":"2026-10-25T06:48:25","modified_gmt":"2026-10-25T14:48:25","slug":"12662659-def-injector-for-gm-silverado-duramax-6-6l","status":"publish","type":"product","link":"https:\/\/www.shrautoparts.com\/de\/produkt\/12662659-def-injector-for-gm-silverado-duramax-6-6l\/","title":{"rendered":"12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax"},"content":{"rendered":"<div class=\"shr-product-desc\">\n<p class=\"shr-desc-intro\"><strong>12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax<\/strong>. Factory-direct OEM replacement component from SHR Autoparts. Precision-engineered for SCR diesel emission aftertreatment, manufactured under certified IATF 16949 quality management, 100% flow-tested, pressure-sealed, and bench-calibrated before dispatch.<\/p>\n<h3>Key Engineering Features<\/h3>\n<ul>\n<li><strong>Precision Metering:<\/strong> High-precision multi-hole spray orifice calibrated to OEM flow specifications (2\u201315 L\/h dynamic range).<\/li>\n<li><strong>Anti-Crystallization Heating:<\/strong> Integrated internal 12V \/ 24V electric heating element prevents AdBlue \/ DEF freezing and tip clogging.<\/li>\n<li><strong>Corrosion Resistance:<\/strong> High-grade surgical stainless steel and chemical-resistant fluoropolymer seals designed for harsh urea exhaust environments.<\/li>\n<li><strong>100% Plug-and-Play Fitment:<\/strong> Exact matching connector pinout, mounting brackets, and exhaust interface \u2014 zero ECM reflash or modification required.<\/li>\n<li><strong>IATF 16949 Certified:<\/strong> Every unit passes 60-second delivery flow verification and key-off reversing valve vacuum checks (-0.3 to -0.5 bar).<\/li>\n<\/ul>\n<h3>Verified Vehicle &amp; Engine Fitment<\/h3>\n<p>Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P &#038; Colorado \/ Canyon 2.8L Duramax<\/p>\n<h3>Interchangeable OE Part Numbers<\/h3>\n<p><code>12662659, 12642310, 12683073, 12698944, 217-3444, 0444021043, 0444021044, 12633013, 12662658<\/code><\/p>\n<h3>Technical Specifications<\/h3>\n<table class=\"shr-specs-table\">\n<tbody>\n<tr>\n<td><strong>Primary OE Number<\/strong><\/td>\n<td><strong>12662659<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Product Category<\/strong><\/td>\n<td>DEF \/ AdBlue Doser Injector &amp; Dosing Modules<\/td>\n<\/tr>\n<tr>\n<td><strong>SCR System Generation<\/strong><\/td>\n<td>GM Duramax SCR Reductant System<\/td>\n<\/tr>\n<tr>\n<td><strong>Operating Voltage<\/strong><\/td>\n<td>12V Pickup Diesel<\/td>\n<\/tr>\n<tr>\n<td><strong>Fluid Compatibility<\/strong><\/td>\n<td>Standard ISO 22241 \/ AUS32 AdBlue &amp; Diesel Exhaust Fluid (DEF)<\/td>\n<\/tr>\n<tr>\n<td><strong>Operating Pressure<\/strong><\/td>\n<td>4.5 \u2013 9.0 bar operating range<\/td>\n<\/tr>\n<tr>\n<td><strong>Zustand<\/strong><\/td>\n<td>100% Brand New OE-Quality Replacement<\/td>\n<\/tr>\n<tr>\n<td><strong>Quality Certification<\/strong><\/td>\n<td>IATF 16949 \/ ISO 9001:2015 \/ CE Certified<\/td>\n<\/tr>\n<tr>\n<td><strong>Factory Warranty<\/strong><\/td>\n<td>12 Months Unlimited-Mileage Global Warranty<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"shr-sku-note\"><strong>SKU:<\/strong> DEF-DOSING-12662659-GM<\/p>\n<p class=\"shr-bulk-note\">Looking for wholesale distributor pricing, private labeling or sample testing? <a class=\"shr-btn shr-btn--primary shr-btn--sm\" href=\"\/request-a-quote\/?rfq_product=12662659\">Submit Part RFQ<\/a> for tiered export discounts and rapid air freight dispatch.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Direct OEM replacement 12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax (OE 12662659). Verified fitment for Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P &#038; Colorado \/ Canyon 2.8L Duramax. IATF 16949 certified quality, 100% flow-tested, sample checkout ready, wholesale distributor container pricing welcome. SKU: DEF-DOSING-12662659-GM.<\/p>","protected":false},"featured_media":13638,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[188,66],"product_tag":[],"class_list":["post-13642","product","type-product","status-publish","has-post-thumbnail","product_cat-def-doser-injector","product_cat-gm","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>12662659 DEF Doser Injector for Chevrolet Silverado 2500HD \/ 3500HD | SHR Autoparts<\/title>\n<meta name=\"description\" content=\"Buy replacement 12662659 DEF AdBlue doser injector for Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P &amp; Colorado.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shrautoparts.com\/de\/produkt\/12662659-def-injector-for-gm-silverado-duramax-6-6l\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax\" \/>\n<meta property=\"og:description\" content=\"Buy replacement 12662659 DEF AdBlue doser injector for Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P &amp; Colorado \/ Canyon 2.8L Duramax. Factory direct IATF 16949 certified quality, sample ready, wholesale RFQ available.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.shrautoparts.com\/de\/produkt\/12662659-def-injector-for-gm-silverado-duramax-6-6l\/\" \/>\n<meta property=\"og:site_name\" content=\"SHR Autoparts\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/shrautoparts\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.shrautoparts.com\/wp-content\/uploads\/2026\/10\/urea-doser.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1554\" \/>\n\t<meta property=\"og:image:height\" content=\"1376\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.shrautoparts.com\/wp-content\/uploads\/shr-og-default.png\" \/>\n<meta name=\"twitter:site\" content=\"@shrautoparts\" \/>\n<meta name=\"twitter:label1\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data1\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/\",\"url\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/\",\"name\":\"12662659 DEF Doser Injector for Chevrolet Silverado 2500HD \\\/ 3500HD | SHR Autoparts\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.shrautoparts.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/urea-doser.jpg\",\"datePublished\":\"2026-10-25T14:48:25+00:00\",\"description\":\"Buy replacement 12662659 DEF AdBlue doser injector for Chevrolet Silverado 2500HD \\\/ 3500HD, GMC Sierra 2500HD \\\/ 3500HD 6.6L Duramax LML \\\/ L5P & Colorado \\\/ Canyon 2.8L Duramax. Factory direct IATF 16949 certified quality, sample ready, wholesale RFQ available.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.shrautoparts.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/urea-doser.jpg\",\"contentUrl\":\"https:\\\/\\\/www.shrautoparts.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/urea-doser.jpg\",\"width\":1554,\"height\":1376,\"caption\":\"Screenshot\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/product\\\/12662659-def-injector-for-gm-silverado-duramax-6-6l\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.shrautoparts.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"NOx Sensor &#038; Auto Parts Shop\",\"item\":\"https:\\\/\\\/www.shrautoparts.com\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#website\",\"url\":\"https:\\\/\\\/www.shrautoparts.com\\\/\",\"name\":\"SHR Autoparts\",\"description\":\"IATF16949 Certified NOx Sensor Factory | 900+ Models | OEM Quality | Global Shipping\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.shrautoparts.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"de\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#organization\",\"name\":\"SHR Autoparts\",\"url\":\"https:\\\/\\\/www.shrautoparts.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.shrautoparts.com\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/cropped-rect-shrlogo.jpeg\",\"contentUrl\":\"https:\\\/\\\/www.shrautoparts.com\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/cropped-rect-shrlogo.jpeg\",\"width\":576,\"height\":220,\"caption\":\"SHR Autoparts\"},\"image\":{\"@id\":\"https:\\\/\\\/www.shrautoparts.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/shrautoparts\",\"https:\\\/\\\/x.com\\\/shrautoparts\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"12662659 DEF Doser Injector for Chevrolet Silverado 2500HD \/ 3500HD | SHR Autoparts","description":"Buy replacement 12662659 DEF AdBlue doser injector for Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P & Colorado.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.shrautoparts.com\/de\/produkt\/12662659-def-injector-for-gm-silverado-duramax-6-6l\/","og_locale":"de_DE","og_type":"article","og_title":"12662659 DEF Reductant Injector for GM Silverado Sierra 2500HD 3500HD 6.6L Duramax","og_description":"Buy replacement 12662659 DEF AdBlue doser injector for Chevrolet Silverado 2500HD \/ 3500HD, GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LML \/ L5P & Colorado \/ Canyon 2.8L Duramax. 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