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3521743 4LGK Turbocharger Replacement for Volvo TD121K

3521743 4LGK turbocharger for Volvo TD121K applications. Aftermarket replacement unit with technical fitment support. Verify part number and engine code before ordering.

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

Type Turbocharger On backorder — orders accepted Part # 3521743 Models 4LGK Weight 23.00 kg Packing 26*30*33
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12-Month Warranty Shipping to Canada only. OEM-Grade Quality

The 3521743 4LGK turbocharger is an aftermarket replacement unit designed for Volvo TD121K truck applications. This complete assembly serves as a direct substitute for buyers seeking a 3521743 turbo replacement, with technical fitment support available to verify engine code and vehicle application before ordering.

Key Specifications

The 3521743 4LGK turbocharger is a complete aftermarket replacement assembly for Volvo TD121K truck applications. Key identification fields include part number 3521743, turbo model 4LGK, and product type Turbocharger. The unit ships in a 26x30x33 cm package with a gross weight of 23 kg. No OEM reference numbers are provided for this listing, so buyers should verify the part number and engine code against their specific vehicle records. This specification set supports accurate ordering and logistics planning for B2B buyers.

Application & Compatibility

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

  • VOLVO > VOLVO TRUCK > VOLVO TD121K

This 4LGK turbocharger is listed for Volvo TD121K truck applications. The application path VOLVO > VOLVO TRUCK > VOLVO TD121K serves as a reference clue for buyers to verify fitment. Because no OEM reference numbers are provided in this listing, confirm the part number 3521743 and engine code against your specific vehicle records. Verify the turbo configuration, flange details, and production year before ordering to ensure the replacement application matches your unit.

Technical Notes

The 4LGK turbo model is a complete assembly for heavy-duty truck applications. Buyers should verify the turbine housing flange type and bolt pattern against the existing unit to ensure the replacement application matches the Volvo TD121K engine layout. Confirm the compressor housing A/R ratio aligns with the original specification to maintain expected boost response. Since no OEM reference numbers are provided, cross-check part number 3521743 and engine code before ordering. Technical fitment support is available to assist with these verification steps.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 3521743 4LGK turbocharger. Technical fitment support is available to assist with verifying part number, engine code, and vehicle application before ordering. This service helps confirm that the replacement application matches your specific Volvo TD121K unit. For bulk inquiries or logistics planning, contact our team with your required quantity and destination details.

Product FAQ

Ensure the CHRA is balanced to meet operational speed requirements for the 4LGK model. Imbalance can cause vibration and premature failure in the Volvo TD121K application.

Compare the turbine housing flange dimensions and bolt pattern against your existing unit or OEM reference. Verify the specific flange type matches the Volvo TD121K engine layout.

Confirm the A/R ratio of the compressor housing matches the original specification for the 3521743 unit. Incorrect ratios can affect boost response and efficiency in truck applications.

The packing dimensions are 26x30x33 cm with a gross weight of 23 kg. This information helps B2B buyers plan logistics and warehouse space for bulk orders.

VOLVO 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 VOLVO.

Compatibility Verify part number 3521743, engine code TD121K, vehicle application, and production year before ordering. Confirm turbo configuration and flange details match your specific unit.

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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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