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785504-0003 GT3271S Turbocharger Core for MAN

Aftermarket 785504-0003 GT3271S Core for MAN applications. Reference OEM number 789456-0001. Verify engine and vehicle fitment before ordering.

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

Type Core On backorder — orders accepted Part # 785504-0003 Models GT3271S
Cross Reference FOR 789456-0001
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

The 785504-0003 GT3271S Core is an aftermarket replacement CHRA designed for MAN turbocharger applications. This bearing housing assembly serves as an aftermarket replacement part, with OEM reference 789456-0001 listed for fitment verification. Buyers should confirm engine code and vehicle application before ordering to ensure correct part selection.

Key Specifications

  • Part Number: 785504-0003
  • Product Type: Core (CHRA)
  • Turbo Model: GT3271S
  • Application Clue: MAN
  • OEM Reference: 789456-0001
  • Packing: Not specified
  • Gross Weight: Not specified

This section lists the factual identifiers for the 785504-0003 GT3271S Core. The GT3271S model designation helps buyers identify the specific bearing housing assembly required for their MAN application. The OEM reference 789456-0001 is provided as a verification point. Buyers should cross-check these details against their specific engine documentation to confirm the correct part selection before proceeding with an order.

Application & Compatibility

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

  • MAN

The GT3271S Core is listed for MAN turbocharger applications, serving as a replacement application for specific engine configurations. The OEM reference 789456-0001 is provided as a verification point to help buyers confirm fitment. Because application clues are indicative rather than exhaustive, buyers should verify the part number 785504-0003 against their specific engine code, vehicle model, and production year before ordering. Cross-checking these details with the supplied reference numbers helps ensure the correct CHRA is selected for the intended rebuild or replacement project.

Technical Notes

The GT3271S Core is a fixed-geometry bearing housing assembly. Typical configuration may include a standard shaft and seal arrangement; verify specific cooling and actuator interfaces per application. Buyers should confirm the compressor wheel nut thread direction and tightening torque against the technical data sheet for part 785504-0003. Verify shaft end play and radial play tolerances using dial indicators to ensure stable operation. Check O-ring material compatibility for oil and water connections to prevent leaks during MAN application service.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 785504-0003 GT3271S Core. Technical fitment support is available to help verify part number, engine code, and OEM reference 789456-0001 before ordering. This service helps repair shops, rebuilders, and distributors confirm correct CHRA selection for MAN applications. Inquire for bulk order details and pre-shipment inspection options to ensure accurate part delivery for your fleet or workshop inventory.

Product FAQ

Inspect O-rings for material compatibility with engine fluids. Verify that the core includes seals suitable for MAN application requirements.

Confirm the thread direction and torque specification for the compressor wheel nut. Refer to the technical data sheet for the 785504-0003 part number.

Use dial indicators to measure shaft end play and radial play. Compare measurements against the tolerance limits specified for the GT3271S model.

The supplied reference number is 789456-0001. Buyers should verify this OEM reference against their specific MAN vehicle 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 785504-0003, MAN application, and OEM reference 789456-0001 before ordering. Confirm engine code and production year to ensure correct fitment.

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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

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.

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