{"product_id":"turbocharger-gta3776b-gta3782b-for-international-4300-4400-2002-2006-7-6l","title":"Turbocharger GTA3776B GTA3782B for International 4300 4400 (2002-2006) 7.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Replacement GTA3776B \/ GTA3782B Turbocharger for 2002-2006 International 4300, 4400 (DuraStar)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The GTA3776B \/ GTA3782B turbocharger replaces failing factory turbo units on 2002-2006 International 4300 and 4400 trucks to restore manifold boost pressure, throttle transient response, and heavy-duty towing capacity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock International 4300, 4400 Turbocharger Failure Points\u003c\/h3\u003e\n\u003cp\u003eUnder continuous duty cycles and thermal fatigue, the factory turbocharger on the \u003cstrong\u003eDT466 \/ DT466E\u003c\/strong\u003e platform suffers journal bearing wear, dynamic oil seal degradation, and excessive shaft play. Over time, high exhaust gas temperatures cause thrust bearing friction and carbon coking in the oil passages. This wear triggers oil blow-by past the piston ring seals into the turbine and compressor housings, producing heavy black exhaust smoke, low manifold boost pressure, elevated exhaust gas temperatures (EGTs), and critical loss of pulling torque under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact OEM tolerances, this turbo assembly features a heat-resilient \u003cstrong\u003eK418 alloy\u003c\/strong\u003e turbine wheel engineered to survive extreme thermal loads without blade creep or cracking. Paired with a precision-balanced 6+6 blade cast aluminum compressor wheel (59.2 mm inducer \/ 82.04 mm exducer) in a 52 trim profile, it delivers steady mass airflow across the mid-range power band. The unit matches the factory oil-cooled center housing and standard Navistar exhaust flange specifications, facilitating a leak-free direct bolt-on installation that recovers rated boost efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Turbocharger (GTA3776B \/ GTA3782B specification)\u003c\/li\u003e\n  \u003cli\u003e1 Turbine Inlet Flange Gasket\u003c\/li\u003e\n  \u003cli\u003e2 Oil Line Gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100 style=\" border-collapse: collapse border: solid font-size: min-width:\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2002-2006 International 4300, 4400\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eNavistar DT466 \/ DT466E 7.6L \/ DuraStar\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e215-275 hp \/ 620-800 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1826344C93, 1826344C91, 1826344092, 1825632C93, 1825632C91, 1825632RX1, 2506765C91, 1806077C91, 1806078C91, 1806079C91, 4307268R91, 409770-0019, 409770-0020, 409770-0021, 409770-0022, 409770-5019, 409770-5020, 409770-5021, 409770-5022, 466409-0, 684663C92, 684937C91, 691020C91, 691059C91, 691409C91, 691409C92, 735095C91, 735270C91\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2002-2006 International 4300 DuraStar (DT466 \/ DT466E 7.6L Diesel)\u003c\/li\u003e\n  \u003cli\u003e2002-2006 International 4400 DuraStar (DT466 \/ DT466E 7.6L Diesel)\u003c\/li\u003e\n  \u003cli\u003eNavistar DT466, DT466E, DT466P, DT408P, I530E commercial applications (verify OE part number)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the DuraStar 4300, 4400?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2002-2006 International 4300, 4400 equipped with the \u003cstrong\u003eDT466 \/ DT466E\u003c\/strong\u003e engine; always verify your turbo nameplate matches OEM reference \u003cstrong\u003e1826344C93\u003c\/strong\u003e or related part numbers.\u003c\/p\u003e\n\n\u003ch4\u003eWhat pre-installation steps are required prior to initial startup?\u003c\/h4\u003e\n\u003cp\u003eYou must replace engine oil and filters, clean or replace supply and drain lines, and pre-lube the turbo oil inlet port to prevent dry-bearing damage upon initial start.\u003c\/p\u003e\n\n\u003ch3\u003eThe International Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned for commercial vocational duty, this replacement turbocharger restores full payload pulling power, lower operating temperatures, and daily towing dependability for commercial fleet operations.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67610967834872,"sku":"DS-E79HFT7QJ","price":320.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/turbocharger-gta3776b-gta3782b-for-international-4300-4400-2002-2006-7-6l-1.jpg?v=1791567088","url":"https:\/\/performancechiptuning.com\/products\/turbocharger-gta3776b-gta3782b-for-international-4300-4400-2002-2006-7-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}