{"product_id":"hx40w-turbocharger-for-cummins-6ctaa-isc-qsc-8-3l-3800401","title":"HX40W Turbocharger for Cummins 6CTAA ISC QSC 8.3L | 3800401","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\n\u003cp\u003eThis new aftermarket HX40W turbocharger is intended as a replacement for select Cummins 6CTAA, ISC, and QSC 8.3L diesel engine applications rated at approximately 330–350 HP.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for compatible commercial and industrial diesel engine applications, this turbocharger offers a replacement option for equipment requiring a matching HX40W turbocharger assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTurbocharger Model:\u003c\/strong\u003e HX40W\u003cbr\u003e\n\u003cstrong\u003eEngine Manufacturer:\u003c\/strong\u003e Cummins\u003cbr\u003e\n\u003cstrong\u003eCompatible Engine Series:\u003c\/strong\u003e 6CTAA \/ ISC \/ QSC\u003cbr\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 8.3L\u003cbr\u003e\n\u003cstrong\u003eReference Power Range:\u003c\/strong\u003e 330–350 HP\u003cbr\u003e\n\u003cstrong\u003ePrimary Reference Numbers:\u003c\/strong\u003e 3800401, 4044175, 4955660\u003cbr\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New Aftermarket Replacement\u003cbr\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Select Commercial and Industrial Diesel Engines\u003c\/p\u003e\n\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\n\u003ch3\u003e1. Engine Compatibility\u003c\/h3\u003e\n\n\u003cp\u003eThis turbocharger is intended for selected Cummins 8.3L diesel engines requiring a compatible HX40W turbocharger assembly.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Manufacturer\u003c\/th\u003e\n\u003cth\u003eEngine Model\u003c\/th\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003cth\u003eReference Power\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003e6CTAA\u003c\/td\u003e\n\u003ctd\u003e8.3L\u003c\/td\u003e\n\u003ctd\u003e330–350 HP\u003c\/td\u003e\n\u003ctd\u003eSelect commercial and industrial applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eISC\u003c\/td\u003e\n\u003ctd\u003e8.3L\u003c\/td\u003e\n\u003ctd\u003e330–350 HP\u003c\/td\u003e\n\u003ctd\u003eSelect commercial vehicle applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eQSC\u003c\/td\u003e\n\u003ctd\u003e8.3L\u003c\/td\u003e\n\u003ctd\u003e330–350 HP\u003c\/td\u003e\n\u003ctd\u003eSelect industrial and off-highway applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The engine models and horsepower range above are supplier-provided application references. This turbocharger does not fit every Cummins 6CTAA, ISC, or QSC engine.\u003c\/p\u003e\n\n\u003cp\u003eCompatibility depends on the original turbocharger assembly number, engine serial number, horsepower rating, emissions configuration, and installation specifications.\u003c\/p\u003e\n\n\u003ch3\u003e2. Vehicle and Equipment Applications\u003c\/h3\u003e\n\n\u003cp\u003ePotential applications include selected commercial vehicles and industrial equipment equipped with compatible Cummins 8.3L diesel engines.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication Type\u003c\/th\u003e\n\u003cth\u003eEngine Series\u003c\/th\u003e\n\u003cth\u003eFitment Requirements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial Trucks\u003c\/td\u003e\n\u003ctd\u003eCummins ISC 8.3L\u003c\/td\u003e\n\u003ctd\u003eMatching original turbocharger assembly required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuses and Commercial Chassis\u003c\/td\u003e\n\u003ctd\u003eCummins ISC 8.3L\u003c\/td\u003e\n\u003ctd\u003eVerify engine and turbocharger part number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial Equipment\u003c\/td\u003e\n\u003ctd\u003eCummins 6CTAA \/ QSC 8.3L\u003c\/td\u003e\n\u003ctd\u003eVerify original turbocharger and installation configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction and Off-Highway Equipment\u003c\/td\u003e\n\u003ctd\u003eCummins 6CTAA \/ QSC 8.3L\u003c\/td\u003e\n\u003ctd\u003eVerify engine serial number and original turbocharger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle and Equipment Fitment Notice:\u003c\/strong\u003e Specific vehicle makes, equipment models, and production years have not been confirmed for this exact replacement assembly.\u003c\/p\u003e\n\n\u003cp\u003eDo not determine compatibility based only on the engine model, horsepower rating, or equipment year.\u003c\/p\u003e\n\n\u003ch3\u003e3. How to Confirm Fitment\u003c\/h3\u003e\n\n\u003cp\u003eBefore ordering, please follow these steps:\u003c\/p\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm your engine model:\u003c\/strong\u003e Check whether your engine is a Cummins 6CTAA, ISC, or QSC 8.3L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the horsepower rating:\u003c\/strong\u003e The supplier reference range is approximately 330–350 HP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocate the original turbocharger number:\u003c\/strong\u003e Check the identification plate on your existing turbocharger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare part numbers:\u003c\/strong\u003e Match the complete original turbocharger number against the reference list below.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify the installation configuration:\u003c\/strong\u003e Compare the turbine housing, mounting flange, exhaust outlet, compressor connections, oil connections, and wastegate arrangement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm with your engine serial number:\u003c\/strong\u003e Use your Cummins Engine Serial Number (ESN) to identify the required replacement assembly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eNeed Help Checking Compatibility?\u003c\/strong\u003e Please contact us with your original turbocharger part number, Cummins ESN, engine horsepower rating, and vehicle or equipment information before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eOE \/ Part Number Cross Reference\u003c\/h2\u003e\n\n\u003cp\u003eThe following supplier-provided reference numbers are associated with this HX40W replacement application.\u003c\/p\u003e\n\n\u003ch3\u003eKey Reference Numbers\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e3800401, 4044175, 4955660, 4033651, 3590156, 3591022\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eComplete Reference List\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eReference Group\u003c\/th\u003e\n\u003cth\u003ePart Numbers\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e353 Series\u003c\/td\u003e\n\u003ctd\u003e3538232, 3538233, 3538240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e359 Series\u003c\/td\u003e\n\u003ctd\u003e3590156, 3591022, 3591045, 3591046, 3591049, 3591055, 3591056, 3591058, 3591651, 3591734, 3591735, 3594323, 3595387, 3596408, 3598074, 3598327\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e380 Series\u003c\/td\u003e\n\u003ctd\u003e3800401, 3800401NX, 3800401RX, 3800406, 3800406NX, 3800406RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e403 Series\u003c\/td\u003e\n\u003ctd\u003e4033651, 403365100, 403365100H, 4033651H, 4033651HX, 4036888, 4036979\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e404 Series\u003c\/td\u003e\n\u003ctd\u003e4044175, 4044176, 4044969, 4044970, 4044971\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e495 Series\u003c\/td\u003e\n\u003ctd\u003e4955660, 495566000, 4955660NX, 4955660RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional References\u003c\/td\u003e\n\u003ctd\u003eJR800401, TS4044175, TS4044175R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Cross-Reference Notice:\u003c\/strong\u003e These numbers are provided for identification purposes. Some may represent different service replacements, remanufactured references, or turbocharger configurations.\u003c\/p\u003e\n\n\u003cp\u003eNot every listed reference number is necessarily directly interchangeable with this product. Please verify the complete original turbocharger assembly number before purchasing.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This Turbocharger?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Aftermarket Replacement:\u003c\/strong\u003e A replacement option for compatible Cummins 8.3L diesel engine applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Engine Applications:\u003c\/strong\u003e Intended for selected Cummins 6CTAA, ISC, and QSC engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial and Industrial Use:\u003c\/strong\u003e Suitable for consideration in compatible on-highway and off-highway applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive Reference List:\u003c\/strong\u003e Multiple part numbers help customers identify potential replacement applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Assistance:\u003c\/strong\u003e Customers can provide original turbocharger and engine information for compatibility review.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eTurbocharger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTurbocharger Model\u003c\/th\u003e\n\u003ctd\u003eHX40W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew Aftermarket Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Manufacturer\u003c\/th\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Engine Series\u003c\/th\u003e\n\u003ctd\u003e6CTAA \/ ISC \/ QSC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Displacement\u003c\/th\u003e\n\u003ctd\u003e8.3L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReference Horsepower\u003c\/th\u003e\n\u003ctd\u003e330–350 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Reference Numbers\u003c\/th\u003e\n\u003ctd\u003e3800401, 4044175, 4955660\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eSelect Commercial and Industrial Diesel Engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Years\u003c\/th\u003e\n\u003ctd\u003eVaries by Application — Verify Original Turbocharger Part Number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Turbocharger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eShipping \u0026amp; Warranty\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 New Aftermarket HX40W Turbocharger.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackage Configuration:\u003c\/strong\u003e Gaskets, mounting hardware, and additional accessories are included only if specified in the confirmed product package.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Available shipping options and estimated delivery times are displayed at checkout.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Warranty coverage and applicable conditions are subject to our published warranty policy.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat engines does this HX40W turbocharger fit?\u003c\/h3\u003e\n\n\u003cp\u003eIt is intended for select Cummins 6CTAA, ISC, and QSC 8.3L diesel engines rated at approximately 330–350 HP. Exact compatibility must be verified using the original turbocharger part number.\u003c\/p\u003e\n\n\u003ch3\u003eDoes this turbocharger fit every Cummins 8.3L engine?\u003c\/h3\u003e\n\n\u003cp\u003eNo. Cummins 8.3L engines use different turbocharger configurations depending on engine model, horsepower rating, emissions specifications, and application.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit Cummins ISC 330 or ISC 350 engines?\u003c\/h3\u003e\n\n\u003cp\u003eIt may fit selected ISC 330–350 HP applications requiring a matching HX40W assembly. Please verify your original turbocharger number and Cummins ESN.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit Cummins QSC 8.3L industrial engines?\u003c\/h3\u003e\n\n\u003cp\u003eIt may fit selected QSC 8.3L industrial applications. Compatibility depends on the original turbocharger assembly and installation configuration.\u003c\/p\u003e\n\n\u003ch3\u003eWhat years does this turbocharger fit?\u003c\/h3\u003e\n\n\u003cp\u003eSpecific engine and vehicle production years have not been confirmed for this exact assembly. Please verify fitment using the original turbocharger part number and Cummins Engine Serial Number.\u003c\/p\u003e\n\n\u003ch3\u003eAre all the listed reference numbers interchangeable?\u003c\/h3\u003e\n\n\u003cp\u003eNot necessarily. Some numbers may represent different service or assembly configurations. Please compare the complete original turbocharger number before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eIs this a genuine Cummins or Holset turbocharger?\u003c\/h3\u003e\n\n\u003cp\u003eNo. This is a new aftermarket replacement product and is not represented as a genuine Cummins or Holset component.\u003c\/p\u003e\n\n\u003ch3\u003eIs professional installation recommended?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Professional installation is recommended. Inspect the engine lubrication system, intake and exhaust connections, and related components before installation.\u003c\/p\u003e\n\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\n\u003cp\u003eThis product is a new aftermarket replacement turbocharger and is not represented as a genuine Cummins or Holset product.\u003c\/p\u003e\n\n\u003cp\u003eManufacturer names, trademarks, engine models, equipment models, and reference numbers are used solely for compatibility identification.\u003c\/p\u003e\n\n\u003cp\u003eEngine applications, horsepower ratings, and cross-reference numbers are provided for reference only. Actual compatibility must be verified using the original turbocharger assembly number, Cummins Engine Serial Number (ESN), and installation configuration.\u003c\/p\u003e","brand":"LH","offers":[{"title":"Default Title","offer_id":49984839712865,"sku":"TUR-HE40W-3538232-JLY","price":621.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/5116\/3745\/files\/DM_20260921110204_003.png?v=1793352980","url":"https:\/\/milemaxdp.com\/products\/hx40w-turbocharger-for-cummins-6ctaa-isc-qsc-8-3l-3800401","provider":"Mile Max Diesel Power","version":"1.0","type":"link"}