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181931 Turbocharger Replacement for CAT D8N 3406 Engine

Type Turbocharger Part # 181931 Models 4LF552
Cross Reference 9N2328
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12-Month Warranty Worldwide Shipping OEM-Grade Quality

This LeadTurbo 181931 turbocharger serves as an aftermarket replacement for CAT D8N machines equipped with 3406 engines. Designed for the 4LF552 model, this unit references OEM number 9N2328 to assist buyers in confirming fitment. Verify your specific engine configuration and existing part details before ordering to ensure correct application.

Key Specifications

This section outlines the core identification details for the 181931 turbocharger. Buyers should verify the part number 181931 and turbo model 4LF552 against their existing unit. The product type is a complete turbocharger assembly intended for replacement applications. OEM reference number 9N2328 is provided to assist in reference checking with original equipment tags. Ensure all markings match your specific CAT D8N or 3406 engine configuration before proceeding with the purchase.

Application & Compatibility

This unit is listed for CAT D8N machines equipped with 3406 engines. Buyers should verify the specific engine configuration and existing turbocharger details before ordering. Cross-reference the OEM number 9N2328 with your current unit to confirm it matches the required replacement application. Ensure all physical markings align with your equipment specifications to avoid fitment issues.

Technical Notes

This section provides technical context for the 181931 turbocharger assembly. Buyers should inspect the physical unit to confirm housing orientation and connection types match their CAT 3406 engine setup. Verify that the turbine and compressor wheel dimensions align with the 4LF552 model specifications. Check oil inlet and outlet ports for correct sizing and threading. Ensure the actuator arm position and related hardware geometry correspond to your specific CAT D8N application. Confirm all mounting bolt patterns match before installation to prevent mechanical interference.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for the 181931 turbocharger. Worldwide shipping is available for distributors, repair shops, and fleet parts buyers. Our technical team provides fitment support to verify part number 181931 and model 4LF552 details. Contact us to confirm OEM reference 9N2328 alignment with your CAT D8N application. We assist with order verification to ensure correct replacement parts for your 3406 engine inventory.

Product FAQ

This unit is associated with OEM reference number 9N2328. Buyers should compare this number with the tag on their existing turbocharger to confirm it is the correct replacement application.

Compare the part number 181931 and model 4LF552 on the nameplate. Also verify the housing orientation and oil/water connection types match your specific CAT 3406 engine configuration.

Confirm your vehicle is a CAT D8N with a 3406 engine. Check that the OEM reference 9N2328 matches your current unit. Contact technical support with your serial number if unsure.

Yes, volume pricing is available for distributors and fleet parts buyers. Contact our sales team for a quote based on your order quantity and shipping destination.

CAT 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 CAT.

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Frequently Asked Questions

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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.