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4031321 HX40W Turbocharger Core for Cummins QSL Industrial Engines
Aftermarket 4031321 HX40W turbo core for Cummins QSL and ISL applications. Verify part number, engine code, and OEM references before ordering. Technical fitment support available.
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Send an InquiryThis aftermarket 4031321 HX40W turbocharger core is a replacement component for Cummins QSL and ISL industrial engines. It serves as a rebuildable CHRA assembly for fleet and repair applications, with over 170 associated OEM reference numbers to help confirm fitment.
Key Specifications
- Part Number: 4031321
- Product Type: Turbocharger Core (CHRA)
- Turbo Model: HX40W
- Gross Weight: 4 kg
- Packing Dimensions: 15 x 15 x 16 cm
- Representative OEM References: 3769819, 4027948, 4032234, 4043363
- Application Clues: Cummins QSL, ISL, and QSL 280HP engines
- Image Availability: High-resolution studio views of the core assembly
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
This core is listed for Cummins QSL, ISL, and QSL 280HP applications, with reference numbers associated with industrial, automotive, and tractor engines. Verify your specific engine model, production year, and existing turbo configuration against the OEM reference numbers before ordering. Representative references include 3769819, 4027948, and 4032234. Application clues include:
- CUMMINS > CUMMINS INSUSTRIAL > CUMMINS QSL
- CUMMINS > CUMMINS AUTOMOTIVE > CUMMINS ISL
- CUMMINS > CUMMINS INDUSTRIAL > CUMMINS QSL 280HP
- CUMMINS > CUMMINS INDUSTRIAL > CUMMINS QSL 325HP
- CUMMINS > CUMMINS POWERGEN > CUMMINS QSL9
- CUMMINS > CUMMINS RAILWAY > CUMMINS 6BTA
- CUMMINS > CUMMINS TRACTOR > CUMMINS QSC
- CUMMINS > CUMMINS TRUCK > CUMMINS ISC CM850
- CUMMINS > CUMMINS VARIOUS > CUMMINS ISLE
- CUMMINS > CUMMINS 6CT
- CUMMINS > CUMMINS ISC
- CUMMINS > CUMMINS ISC6 320HP
- CUMMINS
- KOMATSU > KOMATSU INDUSTRIAL ENGINE AGRICULTURAL EQUIPMENT > CUMMINS QSL SA6D114 SAA6D114E-3
- Cummins QSL, ISL, and QSL 280HP
- Cummins PowerGen QSL9 and Railway 6BTA
- Cummins Tractor QSC and Truck ISC CM850
- Komatsu Industrial Equipment with Cummins QSL engines
Technical Notes
The HX40W core assembly features a central bearing housing connecting the compressor and turbine sections. Visible machined metal surfaces on the housings and multiple curved blades on both wheels are evident in the studio images. These structural details help buyers visually verify the component type before ordering. For technical fitment support, cross-check the visible flange geometry and mounting surfaces against your existing turbocharger configuration. Verify part number 4031321 and associated OEM references such as 3769819 or 4027948 to ensure the core matches your specific Cummins QSL or ISL engine application.
B2B Supply
LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 4031321 HX40W core. Technical fitment support is available to help verify part numbers, engine applications, and OEM reference numbers before ordering. Distributors and repair shops can request quotes for bulk orders of this Cummins QSL and ISL replacement component. Contact our team to confirm specific application details and shipping options for your fleet or workshop needs.
Product FAQ
CUMMINS and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by CUMMINS.
Compatibility Verify part number 4031321, engine code, vehicle application, production year, and OEM reference numbers before ordering. This is an aftermarket replacement application; confirm fitment against your specific turbo configuration.
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Complete Turbo Units
Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.
CHRA / Core Assemblies
Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.
Turbine Wheels & Shafts
Precision-balanced turbine shafts engineered from inside out for superior durability.
Turbine Housings
Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.
Compressor Housings
OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.
Bearing Housings
Rock-solid platform engineered for high-output rebuilds — the foundation for performance.
Compressor Wheels
Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.
