Product image unavailable. Placeholder image only.

631GC5143M2 S3BL129 Turbocharger Replacement for MACK EM7-300

Aftermarket 631GC5143M2 S3BL129 turbocharger for MACK EM7-300. Verify part number, engine code, and OEM reference 168078 before ordering. Technical fitment support available.

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

Type Turbocharger On backorder — orders accepted Part # 631GC5143M2 Models S3BL129 Weight 23.00 kg Packing 26*30*33
Cross Reference 168078
Request Quote
Send an Inquiry
12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This aftermarket 631GC5143M2 S3BL129 turbocharger is a replacement unit for MACK EM7-300 engines. It is listed for MACK truck applications with OEM reference 168078. Verify your specific part number, engine code, and vehicle application before ordering to ensure correct fitment.

Key Specifications

  • Part Number: 631GC5143M2
  • Product Type: Turbocharger
  • Turbo Model: S3BL129
  • Application Clue: MACK EM7-300
  • OEM Reference: 168078
  • Packing Dimensions: 26*30*33 cm
  • Gross Weight: 23 kg
  • Image Availability: Not provided

Use these factual fields to cross-check your existing unit against the 631GC5143M2 replacement. The 23 kg gross weight and specific packing dimensions help confirm you are reviewing the correct heavy-duty assembly for MACK truck applications. Always verify the S3BL129 model designation and OEM reference 168078 against your service records before placing 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 EM7-300

This turbocharger is listed for MACK EM7-300 engine applications within MACK truck fleets. The application path serves as a reference clue for buyers to cross-check their specific vehicle and engine codes. Verify that your unit matches the S3BL129 model designation and OEM reference 168078 before ordering. Confirm the turbine housing flange type and bolt pattern against your existing assembly to ensure proper installation alignment. Always check production year and engine variant details to confirm the replacement application is correct for your specific fleet unit.

Technical Notes

The S3BL129 model designation indicates a specific turbocharger configuration for this MACK EM7-300 application. Buyers should verify the physical dimensions and mounting details of the 631GC5143M2 unit against their existing assembly. The 23 kg gross weight reflects the mass of the complete turbocharger assembly, including the turbine and compressor housings. Confirm the turbine housing flange type and bolt pattern match your engine block before installation. Cross-check the nozzle ring vane count and height if replacing individual components. Use OEM reference 168078 as a verification clue to ensure the replacement part aligns with your service records. Technical fitment support is available to assist with these verification steps.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, rebuilders, and fleet parts distributors with volume pricing on the 631GC5143M2 S3BL129 turbocharger. Worldwide shipping is available for this MACK EM7-300 replacement application. Our team provides technical fitment support to help you verify part numbers, engine codes, and OEM reference 168078 before ordering. Contact us for distributor pricing or to confirm specific fleet requirements for this heavy-duty assembly.

Product FAQ

Check the physical nozzle ring on your existing unit against the S3BL129 specification sheet. Verify the vane count and height match the 631GC5143M2 replacement part before installation.

Ensure the CHRA/core is balanced to manufacturer standards for the S3BL129 model. The 23 kg gross weight of the 631GC5143M2 unit indicates a heavy-duty assembly requiring careful handling and balance verification.

Compare the turbine housing flange and bolt pattern of the 631GC5143M2 turbocharger with your MACK EM7-300 engine. Verify alignment with OEM reference 168078 to ensure proper fitment.

Yes, volume pricing is available for B2B buyers. Contact our sales team for distributor and fleet parts pricing on the S3BL129 model.

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 631GC5143M2, MACK EM7-300 engine code, vehicle application, production year, and OEM reference 168078 before ordering. Confirm turbo configuration and flange type for your specific unit.

Customer Reviews

Share installation notes, fitment feedback, or service experience for this product.

No customer reviews have been added for this product yet.

5/5

For More Information

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.

You May Also Need