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311740 Turbocharger Journal Bearing for MACK 673 & Caterpillar 3406/3408

Aftermarket 311740 journal bearing for MACK 673, Caterpillar 3406/3408, and Detroit Diesel 16V71T applications. Verify part number, engine code, and OEM references before ordering.

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

Type Journal bearing On backorder — orders accepted Part # 311740 Packing N/A
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This aftermarket 311740 journal bearing is a replacement component for turbochargers in MACK 673 and Caterpillar 3406/3408 engine applications. It supports heavy-duty truck and industrial equipment maintenance where specific bearing dimensions must match the existing turbocharger assembly.

Key Specifications

  • Part Number: 311740
  • Product Type: Journal bearing
  • Application Clues: MACK 673, Caterpillar 3406/3408, Detroit Diesel 16V71T
  • Packing: N/A
  • Gross Weight: 0 kg
  • OEM References: None listed

This section lists the core identification data for the 311740 replacement component. Use these fields to cross-check your existing turbocharger assembly and service documentation. Verify that the bearing dimensions and part number match 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:

  • MACK > MACK TRUCK > MACK 673 EM6 EE6 E6 ETAY673A ENDT675 ETZ675
  • Caterpillar > 3406 DITAJWAC
  • Caterpillar > 3408
  • Caterpillar > 3408T 6L
  • DETROIT-DIESEL > 16V71T
  • DETROIT-DIESEL > 8V71TAE
  • KOMATSU
  • MACK

This 311740 journal bearing is listed for MACK 673, Caterpillar 3406/3408, and Detroit Diesel 16V71T/8V71TAE applications. It is also associated with KOMATSU industrial equipment. These paths serve as reference clues for fitment verification. Buyers should confirm the specific engine code, turbocharger assembly number, and OEM reference numbers against their service documentation. Verify that the bearing dimensions match the existing turbo configuration before ordering. Technical fitment support is available to assist with reference checking part numbers and application details.

Technical Notes

Journal bearings support the rotating shaft within the turbocharger assembly, maintaining alignment and reducing friction during operation. For the 311740 part, verify the bearing outer diameter, inner diameter, and width against your existing component or service manual. Because no specific material grade or coating is listed in the supplied data, confirm these physical dimensions match your MACK 673 or Caterpillar 3406/3408 turbo configuration. This verification step helps ensure the replacement bearing integrates correctly with the turbine and compressor housings without requiring additional machining or adaptation.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the 311740 journal bearing. Worldwide shipping is available for this aftermarket replacement component. Our technical fitment support team can assist with reference checking part numbers and verifying application details for MACK 673, Caterpillar 3406/3408, and Detroit Diesel 16V71T engines. Contact us to confirm specific engine codes and turbo configurations before placing an order. This service helps ensure the correct bearing dimensions are selected for your heavy-duty truck or industrial equipment maintenance needs.

Product FAQ

This bearing is referenced for MACK 673 (EM6, EE6, E6) and Caterpillar 3406/3408 applications. Verify your specific engine code and turbo configuration before ordering.

For KOMATSU or other industrial applications, confirm the specific engine model and turbocharger assembly number. Cross-reference the 311740 part number with your equipment's service manual.

Compare the 311740 part number against your existing bearing and verify the turbocharger model. Ensure the bearing dimensions match the specific 16V71T or 8V71TAE turbo configuration.

Yes, volume pricing is available for B2B buyers. Contact our technical support team for distributor and fleet pricing tiers.

MACK 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 MACK.

Compatibility Verify part number 311740, engine code, vehicle application, production year, and OEM reference numbers before ordering. This part is listed for MACK 673, Caterpillar 3406/3408, and Detroit Diesel 16V71T/8V71TAE applications; confirm fitment with your specific turbo configuration.

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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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