1770440 S200AG051 Turbocharger Core for CAT 3126B

This aftermarket replacement core for FOR 1770440 S200AG051 turbochargers serves as a reference application for CAT 3126B engines. Verify part number, engine code, and OEM reference numbers such as 171865 or 178387 before ordering to ensure accurate fitment for your specific Caterpillar equipment.

Key Specifications

• Part Number: FOR 1770440
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: S200AG051
• Application Clues: CAT 3126B, CAT E325C, C7 3126B
• Packing Dimensions: 23 x 21 x 26 cm
• Gross Weight: 5.8 kg
• OEM Reference Numbers: 171865, 178387, FOR 0R7979, FOR 171860, FOR 177-0440, FOR 178475, FOR 471860, FOR 478475
• Image Availability: High-resolution studio views of the core assembly are available for visual inspection of the compressor and turbine wheels.

Application & Compatibility

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

• Caterpillar > CAT > CAT E325C > CAT 3126B
• Caterpillar > Caterpillar Excavator > CAT EXCAVATOR > C7 3126B

This core assembly is listed for reference application on Caterpillar CAT 3126B engines, including CAT E325C excavators and C7 3126B units. The S200AG051 turbo model is associated with OEM reference numbers such as 171865, 178387, and FOR 0R7979. Buyers should verify these references against their specific equipment to confirm fitment. Cross-check the part number FOR 1770440 and engine code before ordering. This verification step helps ensure the replacement application matches your specific Caterpillar equipment configuration.

Technical Notes

The S200AG051 core assembly features a machined bearing housing connecting the compressor and turbine sections. Visible inspection points include the compressor wheel blade curvature and the turbine wheel vane angle. Buyers should verify the mounting flange bolt pattern and bearing housing dimensions against their specific Caterpillar equipment. Cross-check the turbine housing bypass port diameter and compressor cover inlet bellmouth design to ensure alignment with the original configuration. This verification step helps confirm that the replacement application matches the CAT 3126B engine requirements.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for this FOR 1770440 S200AG051 core. Technical fitment support is available to help verify part numbers, engine codes, and OEM reference numbers such as 171865 or 178387 before ordering. This service helps repair shops, rebuilders, and distributors confirm that the replacement application matches their specific CAT 3126B equipment. Inquire with your specific application details to ensure accurate sourcing for your fleet or rebuild project.