181931 4LF552 Turbocharger Replacement for CAT D8N 3406
181931 4LF552 turbocharger for CAT D8N 3406. Aftermarket replacement referencing OEM 9N2328. Verify engine code and part number before ordering.
Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .
The 181931 4LF552 turbocharger is an aftermarket replacement unit designed for Caterpillar D8N applications equipped with 3406 engines. This assembly references OEM number 9N2328, serving as a key identifier for B2B buyers and repair shops verifying fitment against existing service records.
Key Specifications
- Part Number: 181931
- Product Type: Turbocharger
- Turbo Model: 4LF552
- OEM Reference: 9N2328
- Application Clue: Caterpillar D8N with 3406 engine
These specifications help B2B buyers and repair shops cross-check the unit against existing service records or old turbo tags. The single representative OEM reference number, 9N2328, serves as a primary identifier for verifying the correct replacement application before placing an order.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- Caterpillar > CAT > CAT D8N > CAT 3406
This 181931 4LF552 turbocharger is listed for Caterpillar D8N applications equipped with 3406 engines. The application path serves as a reference clue for buyers to verify fitment against their specific service records.
- Application Path: Caterpillar > CAT > CAT D8N > CAT 3406
- OEM Reference: 9N2328
Buyers should confirm the part number 181931 and model 4LF552 against the old turbo tag. Cross-check the OEM reference 9N2328 and verify the engine code 3406 before ordering. This unit is an aftermarket replacement application; verify all details with your technical fitment support team.
Technical Notes
The 4LF552 turbocharger model is associated with Caterpillar 3406 engine applications. This unit is an aftermarket replacement assembly; specific internal configurations such as bearing types, cooling systems, or actuator designs are not confirmed in the supplied data. Buyers should verify the physical configuration of the existing unit against the new part. Compare turbine and compressor housing dimensions, mounting flange orientation, and oil feed line connections. Technical fitment support is available to assist with these verification steps before ordering.
B2B Supply
LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the 181931 4LF552 turbocharger. Worldwide shipping is available for this aftermarket replacement unit. Our technical fitment support team can assist with verifying part number 181931, engine code 3406, and OEM reference 9N2328 before you place an order. Contact us for fleet-specific quotes or to confirm application details for your Caterpillar D8N service records.
Product FAQ
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.
Compatibility Verify part number 181931, engine code 3406, vehicle application CAT D8N, and OEM reference 9N2328 before ordering. Confirm turbo configuration and production year with your service records.
Customer Reviews
Share installation notes, fitment feedback, or service experience for this product.
No customer reviews have been added for this product yet.
Related technical guides
For More Information
Frequently Asked Questions
What types of turbocharger spare parts do you offer? Warranty, shipping, quality and more.
Complete Turbo Units
Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.
CHRA / Core Assemblies
Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.
Turbine Wheels & Shafts
Precision-balanced turbine shafts engineered from inside out for superior durability.
Turbine Housings
Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.
Compressor Housings
OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.
Bearing Housings
Rock-solid platform engineered for high-output rebuilds — the foundation for performance.
Compressor Wheels
Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.
