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Caterpillar 174-1644 Turbocharger Assembly S3B
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| Turbo Series | BorgWarner S3B |
|---|---|
| Manufacturer Model | 4LE504 |
| Wastegate Type | Integrated Actuator |
| Turbine Outlet | V-Band |
| Rotation | Clockwise (Compressor View) |
| Approximate Weight | 18.5 kg |
| Package Dimensions | 45 × 35 × 35 cm |
Manufacturer No.
- 4LE504
- S3B
- 1741644
OEM Part No.
- 174-1644
- 1741644
- 1P9373
- 0R9956
Engine Part No.
- Caterpillar 3176C
Interchange No.
- 178467
- 155550
- 478467
Fitment Vehicles
- Caterpillar 140H Motor Grader
- Caterpillar 160H Motor Grader
- Caterpillar 143H Motor Grader
- Caterpillar 14H Motor Grader
- Caterpillar 163H Motor Grader
The Caterpillar 174-1644 is a BorgWarner S3B series turbocharger (manufacturer model 4LE504) designed for the Caterpillar 3176C heavy-duty diesel engine. It features an integrated wastegate actuator for boost pressure control. This unit serves as a direct replacement for OEM part numbers 1P9373 and 0R9956.
Primary applications include Caterpillar 140H, 143H, 14H, 160H, and 163H motor graders. The turbocharger utilizes a V-band turbine outlet connection and compressor cover configuration specific to the 3176C engine installation. Cross-reference interchange numbers include 178467, 155550, and factory remanufactured number 478467.
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