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4038790 HX25W Turbocharger Replacement for Cummins 4BT

Aftermarket replacement turbocharger 4038790 (HX25W) for Cummins 4BT and Komatsu PC120-6 applications. Verify engine code and OEM references 3599355, 4033351 before ordering. Technical fitment support available.

Type Turbocharger Part # 4038790 Models HX25W Weight 8.00 kg Packing 21*23*26
Cross Reference 3599355
Show more cross references 3599355 3599356 4033351 4038791 4089714
US$ 138.00 / 1 pc(s)
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Subtotal: US$ 138.00

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12-Month Warranty Worldwide Shipping OEM-Grade Quality

This aftermarket 4038790 HX25W turbocharger serves as a replacement unit for Cummins 4BT engines and Komatsu PC120-6 applications. Designed to support OEM references 3599355 and 4033351, it offers a replacement option for fleet maintenance and repair shops. Verify your specific engine code and existing turbo configuration before ordering to ensure proper fitment.

Key Specifications

This HX25W turbocharger assembly is identified by part number 4038790. It serves as an aftermarket replacement unit for Cummins 4BT engines and Komatsu PC120-6 applications. The unit supports OEM reference numbers 3599355, 3599356, 4033351, 4038791, and 4089714. Buyers should verify these references against their existing turbocharger to confirm fitment. The product ships in a standard carton measuring 21x23x26 cm with a gross weight of 8 kg. High-resolution images are available to assist with visual inspection and part identification before purchase.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

  • CUMMINS > CUMMINS VARIOUS > CUMMINS 4BT
  • KOMATSU > KOMATSU PC120-6 > KOMATSU S4D102E

This HX25W turbocharger is listed for Cummins 4BT engines and Komatsu PC120-6 (S4D102E) applications. Use the provided application paths as reference clues to verify fitment against your specific engine code and production year. Always confirm that the turbocharger configuration matches your existing unit before ordering. Contact technical support with your vehicle details to ensure proper replacement application.

Technical Notes

Review the physical dimensions and mounting details of your existing turbocharger against this unit. The HX25W design requires precise alignment with engine manifolds and exhaust piping. Verify that the compressor and turbine housing flanges match your current setup. Check oil inlet and outlet port sizes to ensure proper lubrication flow. Confirm that the actuator arm length and pivot position align with your engine's boost control system. Inspect all gasket surfaces for damage before installation. Use the provided OEM reference numbers to cross-check specifications with your vehicle documentation.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for the 4038790 HX25W turbocharger. Worldwide shipping is available for this 8 kg unit, packed in a 21x23x26 cm carton. Technical fitment support helps verify engine codes and OEM references before dispatch. Contact our team to confirm specifications for Cummins 4BT or Komatsu PC120-6 applications. We assist with part number validation to ensure the correct replacement unit is selected for your fleet or workshop needs.

Product FAQ

This unit is associated with OEM references 3599355, 3599356, 4033351, 4038791, and 4089714. Verify these numbers against your existing turbocharger to confirm fitment.

It is designed as a replacement application for Cummins 4BT and Komatsu PC120-6 (S4D102E) engines. Always verify your specific engine code and production year before ordering.

Inspect the mounting studs and nuts on your original turbocharger to match thread pitch and length. Ensure the replacement unit's mounting details align with your engine manifold specifications.

Check the V-band clamp angle and bolt pattern on your exhaust and intake connections. Confirm that the replacement turbocharger's V-band flanges match your existing piping configuration.

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 4038790, engine model (e.g., Cummins 4BT, Komatsu S4D102E), vehicle application, and OEM reference numbers (3599355, 3599356, 4033351, 4038791, 4089714) before ordering. Confirm turbo configuration matches your unit.

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Turbine Wheel

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Precision-balanced turbine shafts engineered from inside out for superior durability.

Turbine Housing

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Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.

Compressor Housing

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OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.

Bearing Housing

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Rock-solid platform engineered for high-output rebuilds — the foundation for performance.

Compressor Wheels

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