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166631-2 Turbocharger Bearing Housing Replacement

Aftermarket 166631-2 turbocharger bearing housing for Mitsubishi Heavy Industries, Caterpillar C6121, and KATO HD1250 applications. Verify engine and OEM references before ordering.

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

Type Bearing housing On backorder — orders accepted Part # 166631-2 Packing N/A
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This aftermarket 166631-2 turbocharger bearing housing is a replacement component for Mitsubishi Heavy Industries and Caterpillar C6121 applications. It supports KATO HD1250 units equipped with the MITSUBISHI 6D24 engine, serving as a critical structural part for turbocharger rebuilds. Verify your specific engine code and OEM reference numbers before ordering to ensure correct fitment.

Key Specifications

  • Part Number: 166631-2
  • Product Type: Turbocharger Bearing Housing
  • Reference Application: Mitsubishi Heavy Industries, Caterpillar C6121, KATO HD1250 (MITSUBISHI 6D24)
  • Packing: N/A
  • Gross Weight: 0 kg (not specified)
  • Image Availability: High-resolution studio views available

This section lists the core identification data for the 166631-2 bearing housing. Buyers should use the part number and application clues to verify fitment against their specific engine and vehicle records. No OEM reference numbers are currently listed for this item, so cross-checking with your equipment manual is recommended.

Application & Compatibility

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

  • MITSUBISHI > MITSUBISHI HEAVY INDUSTRIES
  • Caterpillar > C6121
  • KATO > KATO HD1250 > MITSUBISHI 6D24
  • KOBELCO > 6D24
  • SHANGHAI-DIESEL > D6121

Reference applications for this 166631-2 bearing housing include Mitsubishi Heavy Industries, Caterpillar C6121, KATO HD1250 with MITSUBISHI 6D24, KOBELCO 6D24, and SHANGHAI-DIESEL D6121. These paths serve as verification clues rather than confirmed fitment. Buyers should cross-check their specific engine code, vehicle model, and production year against these references. Since no OEM reference numbers are currently listed for this item, verify part number 166631-2 against your equipment manual or supplier records before ordering to ensure correct replacement application.

Technical Notes

The 166631-2 bearing housing features a central cast body with machined flanges and a domed cast section at the base. Visible internal bores and shaft openings are present in the top view, while the bottom view shows a threaded port. Buyers should inspect the mounting plate for flatness and check the machined grooves on the flange edges for damage. Verify that the central circular opening aligns with your compressor housing and turbine housing interfaces. Since material grade and exact dimensions are not specified in the input, cross-reference these physical features against your original part before installation.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 166631-2 bearing housing. Technical fitment support is available to help verify part number, engine code, and application details before ordering. Inquire about bulk quantities for fleet or industrial repair projects. Confirm your specific Mitsubishi Heavy Industries, Caterpillar C6121, or KATO HD1250 application against supplier records to ensure the correct replacement component is selected.

Product FAQ

Inspect the oil slinger for wear, deformation, or missing teeth. Ensure it rotates freely without contacting the shaft to prevent oil leakage and bearing damage.

Check for cracks, rust, or loose mounting tabs. Verify the material matches the original specification to ensure proper heat dissipation and structural integrity.

Confirm the backplate sealing surface is flat and undamaged. Ensure the mounting holes align with the compressor housing to prevent air leaks and oil seepage.

Reference applications include the MITSUBISHI 6D24 engine in KATO HD1250 excavators and Caterpillar C6121 industrial engines. Verify your specific engine model before purchase.

MITSUBISHI 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 MITSUBISHI.

Compatibility Verify part number 166631-2, engine code, vehicle application, and OEM reference numbers before ordering. Reference applications include Mitsubishi Heavy Industries, Caterpillar C6121, and KATO HD1250 with MITSUBISHI 6D24 engine.

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Frequently Asked Questions

What types of turbocharger spare parts do you offer? Warranty, shipping, quality and more.

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.

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