4046639 HE221W Turbocharger Actuator Replacement for DAF Cummins ISB

The 4046639 HE221W turbocharger actuator is an aftermarket replacement component designed for Cummins ISB engine applications in DAF trucks. This actuator supports VNT turbocharger systems and is also referenced for HYUNDAI Cummins QSB and LiuGong 915E QSB4 equipment. Verify your specific engine code and mounting details before ordering to ensure correct fitment.

Key Specifications

• Part Number: 4046639
• Product Type: Turbocharger Actuator
• Turbo Model: HE221W
• Application Clues: DAF trucks with Cummins ISB, HYUNDAI with Cummins QSB, and LiuGong 915E crawler excavators with Cummins QSB4
• Packing: N/A
• Gross Weight: Not specified
• OEM References: No specific OEM reference numbers provided in the input data

Buyers should verify the part number 4046639 against their specific turbocharger unit. Confirm the mounting orientation and bracket alignment on the HE221W housing before ordering to ensure the actuator matches the physical configuration of your Cummins engine application.

Application & Compatibility

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

• DAF > DAF TRUCK > CUMMINS ISB
• HYUNDAI > CUMMINS QSB
• LiuGong > 915E > 915E Crawler excavator > CUMMINS QSB4

This actuator is listed for DAF trucks equipped with Cummins ISB engines, HYUNDAI vehicles with Cummins QSB engines, and LiuGong 915E crawler excavators with Cummins QSB4 engines. These application paths serve as reference clues for fitment verification. Buyers should confirm the specific engine code, turbo model HE221W, and mounting details on their unit before ordering. Verify the actuator bracket alignment and hardware requirements against your existing installation to ensure the 4046639 part matches your specific application.

Technical Notes

The HE221W turbocharger is a fixed-geometry unit, so the 4046639 actuator manages boost pressure via a wastegate mechanism rather than variable turbine vanes. This design is typical for Cummins ISB and QSB engine applications where steady-state efficiency is prioritized.

• Actuator Function: Controls wastegate opening to regulate boost pressure.
• Mounting Verification: Confirm the bracket orientation and bolt pattern match your specific HE221W housing.
• Hardware Check: Inspect mounting seals and fasteners for wear during installation planning.

Buyers should verify the physical orientation of the actuator arm against their existing unit. If the bracket type or mounting position is unclear, a dimensional confirmation photo of the current installation helps ensure the 4046639 part aligns correctly with the turbine housing.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 4046639 HE221W actuator. Our technical fitment team assists with verifying mounting detailss for DAF Cummins ISB, HYUNDAI QSB, and LiuGong 915E QSB4 applications. Submit your specific engine code and current unit photos to confirm the bracket alignment and hardware requirements before placing an order. This service helps ensure the replacement actuator matches your physical installation, reducing the risk of incorrect part selection for your fleet or workshop inventory.