{"id":6136,"date":"2026-05-18T20:55:23","date_gmt":"2026-05-18T20:55:23","guid":{"rendered":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/"},"modified":"2026-05-20T02:32:29","modified_gmt":"2026-05-20T02:32:29","slug":"navistar-international-flywheel-1821915c91-dt466e-engine","status":"publish","type":"product","link":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/","title":{"rendered":"Navistar \/ International Flywheel 1821915C91 | DT466E Engine"},"content":{"rendered":"
\n

NAVISTAR \/ INTERNATIONAL FLYWHEEL 1821915C91 | DT466E ENGINE<\/h2>\n

Enhance your vehicle’s performance with this premium Platinum Driveline<\/strong> heavy-duty flywheel. Specifically engineered for the Navistar \/ International DT466E<\/strong> engine, this component is designed to meet the rigorous demands of both high-mileage automotive fleets and heavy-duty equipment. Manufactured to exacting OEM specifications, it ensures consistent torque transfer and professional-grade durability.<\/p>\n

Verified Casting & Part Numbers<\/h3>\n
    \n
  • OE#: 1821915C91<\/li>\n
  • INTERCHANGE: 1821916C1<\/li>\n<\/ul>\n
    \n

    Technical Specifications<\/h3>\n
      \n
    • Engine Application:<\/strong> DT466E<\/li>\n
    • Bore Diameter:<\/strong> 7.25-inch bore size<\/li>\n
    • Disc Outside Diameter:<\/strong> 14″<\/li>\n
    • Ring Gear Teeth:<\/strong> 138<\/li>\n
    • Ring Gear #:<\/strong> 1815440C1<\/li>\n
    • Mounting Holes:<\/strong> 12<\/li>\n
    • Locating Holes:<\/strong> 0<\/li>\n
    • Pilot Bearing #:<\/strong> 206SS \/ 305SS<\/li>\n
    • Condition:<\/strong> New Aftermarket (No Core Charge)<\/li>\n<\/ul>\n
      \n

      Expert Installation & Field Note<\/h4>\n

      In our shop experience specializing in heavy-duty brakes and drivetrains since 1985, the DT466E 12-hole mounting pattern requires precise torque sequencing to prevent flywheel warping. Unlike some earlier models, this unit has 0 locating holes; therefore, centering the flywheel on the crankshaft flange is critical during the initial bolt-up. Always verify that your starter drive is compatible with the 138-tooth ring gear to ensure reliable ignition cycles.<\/p>\n<\/p><\/div>\n

      \n CRITICAL: Verify Specifications<\/strong><\/p>\n

      Please confirm your original casting number and engine series match these specifications. The 12-hole mounting configuration and 7.25-inch bore size are essential for proper fitment and safe operation.<\/p>\n<\/p><\/div>\n

      \n

      Shipping Note:<\/strong> All flywheel orders are drop-shipped directly to ensure the fastest delivery. We are not responsible for carrier delays and cannot guarantee that overnight orders will ship the same day.<\/p>\n

      Note:<\/strong> Prices shown are for online orders only.<\/p>\n<\/p><\/div>\n

      \n
      \n \"Platinum\n <\/div>\n
      \n SKU: 168803<\/span>\n <\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      NAVISTAR \/ INTERNATIONAL FLYWHEEL 1821915C91 | DT466E ENGINE Enhance your vehicle’s performance with this premium Platinum Driveline heavy-duty flywheel. Specifically engineered for the Navistar \/ International DT466E engine, this component is designed to meet the rigorous demands of both high-mileage automotive fleets and heavy-duty equipment. Manufactured to exacting OEM specifications, it ensures consistent torque transfer<\/p>\n","protected":false},"featured_media":1861,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":""},"product_brand":[29],"product_cat":[28,17],"product_tag":[],"class_list":{"0":"post-6136","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-platinum-driveline","7":"product_cat-truck-flywheels-medium-duty-semi-truck","8":"product_cat-view-all-products","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"yoast_head":"\nNavistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty<\/title>\n<meta name=\"description\" content=\"New aftermarket heavy-duty flywheel for Navistar\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Navistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty\" \/>\n<meta property=\"og:description\" content=\"New aftermarket heavy-duty flywheel for Navistar\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/\" \/>\n<meta property=\"og:site_name\" content=\"Automotive Brake & Clutch\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-20T02:32:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/automotivebrakeandclutch.com\/wp-content\/uploads\/2026\/05\/1821915C91-2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"480\" \/>\n\t<meta property=\"og:image:height\" content=\"480\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/\",\"url\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/\",\"name\":\"Navistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/1821915C91-2.jpg\",\"datePublished\":\"2026-05-18T20:55:23+00:00\",\"dateModified\":\"2026-05-20T02:32:29+00:00\",\"description\":\"New aftermarket heavy-duty flywheel for Navistar\\\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/#primaryimage\",\"url\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/1821915C91-2.jpg\",\"contentUrl\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/1821915C91-2.jpg\",\"width\":480,\"height\":480},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/product\\\/navistar-international-flywheel-1821915c91-dt466e-engine\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/index.php\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Navistar \\\/ International Flywheel 1821915C91 | DT466E Engine\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/#website\",\"url\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/\",\"name\":\"Automotive Brake & Clutch\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/automotivebrakeandclutch.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Navistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty","description":"New aftermarket heavy-duty flywheel for Navistar\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!","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:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/","og_locale":"en_US","og_type":"article","og_title":"Navistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty","og_description":"New aftermarket heavy-duty flywheel for Navistar\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!","og_url":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/","og_site_name":"Automotive Brake & Clutch","article_modified_time":"2026-05-20T02:32:29+00:00","og_image":[{"width":480,"height":480,"url":"https:\/\/automotivebrakeandclutch.com\/wp-content\/uploads\/2026\/05\/1821915C91-2.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/","url":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/","name":"Navistar DT466E Flywheel 1821915C91 | Platinum Driveline Heavy-Duty","isPartOf":{"@id":"https:\/\/automotivebrakeandclutch.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/#primaryimage"},"image":{"@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/#primaryimage"},"thumbnailUrl":"https:\/\/automotivebrakeandclutch.com\/wp-content\/uploads\/2026\/05\/1821915C91-2.jpg","datePublished":"2026-05-18T20:55:23+00:00","dateModified":"2026-05-20T02:32:29+00:00","description":"New aftermarket heavy-duty flywheel for Navistar\/International DT466E engines. OE# 1821915C91. 138-tooth ring gear. 12 mounting holes. No core charge. Shop now!","breadcrumb":{"@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/#primaryimage","url":"https:\/\/automotivebrakeandclutch.com\/wp-content\/uploads\/2026\/05\/1821915C91-2.jpg","contentUrl":"https:\/\/automotivebrakeandclutch.com\/wp-content\/uploads\/2026\/05\/1821915C91-2.jpg","width":480,"height":480},{"@type":"BreadcrumbList","@id":"https:\/\/automotivebrakeandclutch.com\/index.php\/product\/navistar-international-flywheel-1821915c91-dt466e-engine\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/automotivebrakeandclutch.com\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/automotivebrakeandclutch.com\/index.php\/shop\/"},{"@type":"ListItem","position":3,"name":"Navistar \/ International Flywheel 1821915C91 | DT466E Engine"}]},{"@type":"WebSite","@id":"https:\/\/automotivebrakeandclutch.com\/#website","url":"https:\/\/automotivebrakeandclutch.com\/","name":"Automotive Brake & Clutch","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/automotivebrakeandclutch.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"wcpa_form_fields":null,"_links":{"self":[{"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/product\/6136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/comments?post=6136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/media\/1861"}],"wp:attachment":[{"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/media?parent=6136"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=6136"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=6136"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/automotivebrakeandclutch.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=6136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}