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178474 AC Turbocharger Actuator for Caterpillar 3126B

FOR 178474 AC aftermarket turbocharger actuator for Caterpillar 3126B. Verify part number, engine code, and application before ordering. Volume pricing and worldwide shipping available.

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

Type Actuator On backorder — orders accepted Part # FOR 178474 AC Packing N/A
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

The FOR 178474 AC is an aftermarket replacement turbocharger actuator listed for Caterpillar 3126B engine applications. This component supports VNT turbocharger systems in heavy-duty diesel fleets, and buyers should verify part numbers and engine codes before ordering to ensure correct fitment.

Key Specifications

  • Part Number: FOR 178474 AC
  • Product Type: Turbocharger Actuator
  • Application Clue: Caterpillar 3126B
  • Packing: N/A
  • Gross Weight: 0 kg
  • Image Availability: Not available

This section lists the core identification fields for the FOR 178474 AC actuator. Buyers should use these facts to cross-check their existing unit or service manual. No OEM reference numbers are currently listed in the source data for this specific part number. Verify all details against your specific engine configuration before proceeding with an order.

Application & Compatibility

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

  • Caterpillar > 3126B

This actuator is listed for Caterpillar 3126B engine applications. Buyers should verify the part number FOR 178474 AC against their specific turbocharger unit and engine code before ordering. Since no OEM reference numbers are currently provided in the source data, cross-checking the physical casting numbers on the old unit is recommended to confirm the correct replacement application. This verification step helps ensure the actuator matches the specific turbo configuration on your Caterpillar 3126B engine.

Technical Notes

The FOR 178474 AC actuator is an aftermarket replacement component for Caterpillar 3126B turbocharger systems. No specific actuator type, cooling method, or VNT configuration is confirmed in the source data. Buyers should verify the physical casting numbers on the existing unit against this part number to ensure the correct replacement application. Technical fitment support is available to assist with reference number verification before ordering.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, rebuilders, and fleet parts distributors with volume pricing and worldwide shipping for the FOR 178474 AC actuator. Technical fitment support is available to assist with verifying part numbers, engine codes, and OEM reference numbers before ordering. Buyers can request quotes for bulk orders or single units. All inquiries are handled with a focus on accurate replacement application confirmation for Caterpillar 3126B systems.

Product FAQ

This actuator is a replacement application for Caterpillar 3126B engines. Verify your specific engine code and turbo configuration before ordering.

Check the latest OEM reference numbers for your Caterpillar 3126B unit. If references have been updated, confirm the new numbers match this actuator before purchase.

Casting numbers are stamped on the physical part, while OE reference numbers are catalog identifiers. Use both to verify fitment for FOR 178474 AC.

Send casting numbers when OEM references are unclear or superseded. This helps confirm the correct actuator for your Caterpillar 3126B application.

OTHER 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 OTHER.

Compatibility Verify part number, engine code, vehicle application, production year, and OEM reference numbers before ordering. This is an aftermarket replacement application; confirm fitment against your specific unit.

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Frequently Asked Questions

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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

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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.

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