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178475 S200AG051 Turbocharger Replacement for CAT 3126B & E325C

Aftermarket S200AG051 turbocharger, part number 178475, for CAT 3126B and E325C applications. Verify OEM reference numbers and engine configuration before ordering.

Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .

Type Turbocharger On backorder — orders accepted Part # 178475 Models S200AG051 Weight 18.00 kg Packing 35*34*43
Cross Reference 0R7979
Show more cross references 0R7979 171860 1770440 177-0440 1784752 1784755 471860 478475
US$ 328.00 / 1 pc(s)
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Subtotal: US$ 328.00

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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This aftermarket 178475 S200AG051 turbocharger is a replacement unit for Caterpillar 3126B engines, including CAT E325C excavators and 135H motograders. Verify part number, engine code, and OEM reference numbers such as 0R7979 or 1770440 before ordering to ensure correct fitment.

Key Specifications

  • Part Number: 178475
  • Turbo Model: S200AG051
  • Product Type: Complete Turbocharger Assembly
  • Gross Weight: 18 kg
  • Packing Dimensions: 35 x 34 x 43 cm
  • OEM Reference Numbers: 0R7979, 171860, 1770440, 177-0440, 1784752, 1784755, 471860, 478475
  • Visible Features: Silver compressor housing, dark cast turbine housing, V-band flanges, and actuator assembly with hose connection

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 135 > Caterpillar 135H Motograder > Caterpillar 3126B
  • Caterpillar > Caterpillar 322 > Caterpillar 322C Excavator > Caterpillar 3126B
  • Caterpillar > Caterpillar 325 > Caterpillar 325C Excavator > Caterpillar 3126B
  • Caterpillar > Caterpillar Excavator > CAT EXCAVATOR > C7 3126B
  • Freightliner > Freightliner trucks > Caterpillar 3126B
  • Ocean Alexander > Ocean Alexander 486 > Ocean Alexander 486 Classico > Caterpillar 3126B

This S200AG051 turbocharger is listed for Caterpillar 3126B engine applications, including CAT E325C excavators, 135H motograders, and 322C/325C excavators. It is also associated with Freightliner trucks and Ocean Alexander 486 Classico vessels. Verify your specific engine code, production year, and OEM reference numbers such as 0R7979 or 1770440 before ordering. Confirm that the turbo configuration matches your existing unit to ensure correct replacement application.

Technical Notes

The S200AG051 turbocharger features a two-part construction with a silver-colored compressor housing and a dark cast turbine housing. Visible V-band flanges on both housings indicate a specific mounting style; verify that your existing unit uses matching V-band clamps before ordering. The actuator assembly includes a brass-colored body and a black hose connection, which should be reviewed before installation for condition during replacement. Confirm the actuator type and hose routing match your specific Caterpillar 3126B engine configuration. Pre-shipment inspection is available to verify part number 178475 and physical condition before dispatch.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the 178475 S200AG051 turbocharger. Technical fitment support is available to help verify part number, engine code, and OEM reference numbers such as 0R7979 or 1770440 before ordering. Worldwide shipping is available for this aftermarket replacement unit. Contact our team to confirm application details and arrange pre-shipment inspection for your specific Caterpillar 3126B engine configuration.

For B2B stock planning, the 18 kg gross weight and 35 x 34 x 43 cm packing dimensions help calculate freight costs and warehouse space for the 178475 S200AG051 unit. When managing inventory for Caterpillar 3126B applications, cross-check the eight associated OEM reference numbers, such as 0R7979 and 1770440, against your specific engine configuration to avoid mis-shipment. LeadTurbo provides technical fitment support to verify these details before dispatch. Volume pricing is available for distributors and repair shops ordering multiple units, with worldwide shipping options to support global fleet maintenance schedules.

Product FAQ

This part is associated with 8 OEM reference numbers, including 0R7979, 171860, and 1770440. Verify these references against your specific engine and vehicle application.

Confirm the specific emission standard of your CAT 3126B engine, as turbocharger configurations can vary by model year and region. Verify the OEM reference number matches your unit.

When replacing the turbocharger on a Caterpillar 322C Excavator, check related intake and exhaust manifold gaskets, V-band clamps, and actuator hoses. These items are often ordered together with the turbocharger.

The gross weight is 18 kg, and the packing dimensions are 35*34*43 cm. This weight is typical for a complete turbocharger assembly of this class.

CAT and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by CAT.

Compatibility Verify part number 178475, engine code CAT 3126B, vehicle application, production year, and OEM reference numbers such as 0R7979 or 1770440 before ordering. Confirm turbo configuration matches your specific unit.

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Frequently Asked Questions

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Turbochargers

Complete Turbo Units

Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.

CHRA Core

CHRA / Core Assemblies

Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.

Turbine Wheel

Turbine Wheels & Shafts

Precision-balanced turbine shafts engineered from inside out for superior durability.

Turbine Housing

Turbine Housings

Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.

Compressor Housing

Compressor Housings

OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.

Bearing Housing

Bearing Housings

Rock-solid platform engineered for high-output rebuilds — the foundation for performance.

Compressor Wheels

Compressor Wheels

Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.