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178027 S300S-083 Turbocharger Replacement for John Deere 6081H

Type Turbocharger Part # 178027 Models S300S-083
Cross Reference 171458
Show more cross references 171458 RE505808 RE505819
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12-Month Warranty Worldwide Shipping OEM-Grade Quality

This aftermarket replacement turbocharger, part number 178027 (S300S-083), is designed for John Deere 6081H Timberjack forestry equipment. It serves as an aftermarket replacement application for units referencing OEM numbers 171458, RE505808, and RE505819. Verify your specific engine configuration and housing details before ordering to ensure proper fitment.

Key Specifications

This section outlines the core identification details for the 178027 turbocharger. The unit is classified as a complete turbocharger assembly, specifically the S300S-083 model. It is designed as an aftermarket replacement for John Deere 6081H Timberjack forestry equipment. Key reference numbers include 171458, RE505808, and RE505819, which help buyers match this part to their existing engine setup. Always cross-check these identifiers with your machine's service manual to ensure the correct housing configuration and actuator type are selected for your specific application.

Application & Compatibility

This unit is listed for John Deere 6081H Timberjack forestry equipment applications. Buyers should verify the specific engine model and production year against the supplied OEM reference numbers 171458, RE505808, or RE505819. Confirm that the turbine housing flange pattern and compressor inlet dimensions match your existing assembly. Always cross-check the actuator type and wastegate configuration before finalizing your order to ensure proper replacement application.

Technical Notes

The S300S-083 model is engineered for heavy-duty forestry applications, requiring precise assembly tolerances. Buyers should inspect the compressor and turbine wheels for damage or debris before installation. Ensure all mounting bolts are torqued to manufacturer specifications to prevent vibration issues. Verify oil line connections are secure to maintain proper lubrication and bearing life. This unit is supplied as a complete assembly, ready for integration into John Deere 6081H Timberjack engines.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 178027 S300S-083 turbocharger. Technical fitment support is available to help verify housing configurations and actuator types before ordering. Contact our team to confirm application details for John Deere 6081H Timberjack units. We assist distributors and repair shops in matching OEM reference numbers 171458, RE505808, and RE505819 to ensure accurate replacement selection.

Product FAQ

This unit is associated with OEM reference numbers 171458, RE505808, and RE505819. Use these numbers to help confirm fitment for your John Deere 6081H application.

Inspect the wastegate flapper valve seating for cracks or carbon buildup that may affect sealing. Proper seating is critical for maintaining boost control stability in the S300S-083 design.

Measure the bypass port diameter and compare it to the original unit or technical drawings for the 178027 part. Ensuring the correct diameter helps maintain proper exhaust gas flow and turbine efficiency.

Verify that the compressor cover inlet bellmouth design matches your engine's intake manifold requirements. Mismatched designs can lead to airflow restrictions and reduced performance.

JOHN-DEERE 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 JOHN-DEERE.

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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.