4089821 HX55W Turbocharger Replacement for Cummins ISM Bus

This aftermarket replacement turbocharger, part number 4089821 (HX55W), is designed for Cummins ISM bus applications. It serves as an aftermarket replacement for OEM reference numbers 3777550, 4038532, and 4039196. Buyers should verify engine specifications and vehicle fitment before ordering to ensure correct installation.

Key Specifications

This HX55W turbocharger assembly is identified by part number 4089821. It is listed as a replacement application for Cummins ISM bus engines. The unit corresponds to OEM reference numbers 3777550, 4038532, and 4039196. Buyers should verify these references against their existing turbocharger tag. The gross weight is 28 kg, with packing dimensions of 26x30x33 cm. These specifications assist in calculating freight costs for international B2B shipments. Confirm the physical configuration matches your requirements before ordering.

Application & Compatibility

This HX55W turbocharger is listed for Cummins ISM bus applications. It serves as a replacement reference for OEM numbers 3777550, 4038532, and 4039196. Buyers must verify the engine model and vehicle configuration before ordering. Confirm that the turbine housing flange and compressor inlet match your existing unit. Cross-reference the part number 4089821 with your service manual to ensure correct installation. Do not assume universal fitment across all ISM variants.

Technical Notes

Verify the physical configuration of the HX55W turbocharger before installation. Confirm that the turbine housing flange and compressor inlet dimensions match your existing unit. Check the bolt pattern and oil line connections to ensure proper alignment with the Cummins ISM engine block. Inspect the shaft for smooth rotation and absence of lateral play. Ensure all mounting surfaces are clean and free of debris. Use new gaskets and seals during reassembly to prevent leaks. Consult your service manual for specific torque specifications and installation procedures.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for the 4089821 HX55W turbocharger. Technical fitment support is available to verify engine and vehicle applications before ordering. Worldwide shipping options help streamline logistics for repair shops and distributors. Contact our team to confirm stock levels and discuss bulk order requirements for Cummins ISM bus replacements.