3801918 HT4C Turbocharger Core Replacement

This aftermarket FOR 3801918 HT4C core is a replacement turbocharger component designed for Cummins NT444, NTA500, and NTA855 engine applications. It serves as a reference application for Freightliner FLD series trucks, ONAN 350DFCC gensets, and Shantui SD22 bulldozers, with 8 associated OEM reference numbers for fitment verification.

Key Specifications

• Part Number: FOR 3801918
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: HT4C
• Gross Weight: 12 kg
• OEM Reference Numbers: 4027393, 4027923, FOR 3525998, FOR 3526131, FOR 3526802, FOR 3598075, FOR 3776942, FOR 3803058
• Application Clues: Cummins NT444, NTA500, NTA855 engines; Freightliner FLD series; ONAN 350DFCC gensets; Shantui SD22 bulldozers

Verify these specifications against your existing unit to confirm fitment before ordering.

Application & Compatibility

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

• Freightliner > FLA > FLC > FLD series, including FLA86 and FLD120 > FLD series, including FLA86 and FLD120 Truck > CUMMINS NT444
• ONAN > 350DFCC > 350DFCC Genset > CUMMINS NTA50
• Shantui > Shantui SD22 > Shantui SD22 Bulldozer > Cummins NTA855

This HT4C core is listed for Cummins NT444, NTA500, and NTA855 engine applications. Reference paths include Freightliner FLD series trucks, ONAN 350DFCC gensets, and Shantui SD22 bulldozers. Verify your specific unit configuration and OEM reference numbers before ordering.

• Freightliner: FLD series, including FLA86 and FLD120 trucks with Cummins NT444 engines.
• ONAN: 350DFCC gensets equipped with Cummins NTA500 engines.
• Shantui: SD22 bulldozers using Cummins NTA855 engines.

Confirm that the part number FOR 3801918 and associated OEM references match your existing turbocharger assembly to ensure correct replacement application.

Technical Notes

The HT4C core is a balanced rotating assembly that integrates the turbine wheel, compressor wheel, and bearing housing. This configuration supports stable operation within Cummins NT444, NTA500, and NTA855 engine applications. During installation, verify that the new core matches the housing orientation and mounting position of your specific unit. Inspect the old core for bearing wear and shaft play to identify failure modes. Confirm that all mounting hardware and seals are in good condition before assembly. Replace worn gaskets or fasteners to ensure a stable seal and prevent leaks during operation. Technical fitment support is available to assist with these verification steps.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the FOR 3801918 HT4C core. Worldwide shipping is available for this 12 kg unit. Our team provides technical fitment support to help verify OEM reference numbers such as 4027393 and 4027923 against your Cummins NT444 or NTA500 application. Contact us to confirm part number, engine code, and mounting details before placing an order.