2674A838 GT2556S Turbocharger Replacement for Perkins 4 4L
Aftermarket 2674A838 GT2556S turbocharger for Perkins 4 4L agricultural tractors. Reference application includes OEM numbers 768524-0021 and 785827-0021. Verify engine and fitment before ordering.
Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .
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768524-0021 785827-0021This aftermarket 2674A838 GT2556S turbocharger is a replacement unit for Perkins 4 4L agricultural tractors. It is listed for applications associated with OEM reference numbers 768524-0021 and 785827-0021. Verify your specific engine code and turbo configuration before ordering to ensure correct fitment.
Key Specifications
- Part Number: 2674A838
- Product Type: Turbocharger
- Turbo Model: GT2556S
- Application Clue: Perkins 4 4L agricultural tractor
- OEM Reference Numbers: 768524-0021, 785827-0021
- Packing Dimensions: 21 x 23 x 26 cm
- Gross Weight: 8 kg
These specifications help buyers verify the physical unit and packaging against their purchase requirements. Use the part number and model to confirm the correct turbocharger series for your specific engine application.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- PERKINS > PERKINS AGRICULTURAL TRACTOR > PERKINS 4 4L
This unit is listed for the Perkins 4 4L agricultural tractor application. The reference path is PERKINS > PERKINS AGRICULTURAL TRACTOR > PERKINS 4 4L. Use this path as a verification clue rather than a confirmed fitment statement. Buyers should cross-check the part number 2674A838 against their specific engine code and production year. Additionally, confirm that the OEM reference numbers 768524-0021 or 785827-0021 match the existing unit or service documentation. This step helps ensure the correct GT2556S configuration is selected for your specific tractor model.
Technical Notes
The GT2556S is a fixed-geometry turbocharger model. This unit is listed for Perkins 4 4L agricultural tractors. No VNT, variable-geometry, or oil-cooled system details are supplied for this specific part. Do not assume these features are present. Verify the physical configuration of your existing unit against the new part. Check the turbine and compressor housing orientations. Confirm the shaft and bearing housing alignment. Use the OEM reference numbers 768524-0021 and 785827-0021 to cross-check the service documentation. This step helps confirm the correct turbocharger series for your application.
B2B Supply
LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 2674A838 GT2556S turbocharger. Technical fitment support is available to help verify part numbers, engine codes, and OEM reference numbers 768524-0021 and 785827-0021 before ordering. This service helps ensure the correct replacement unit is selected for Perkins 4 4L agricultural tractors. Contact our team for bulk inquiries or application-specific guidance.
Product FAQ
PERKINS 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 PERKINS.
Compatibility Verify part number 2674A838, engine code Perkins 4 4L, vehicle application, production year, and OEM reference numbers 768524-0021 or 785827-0021 before ordering. Confirm turbo configuration matches your specific unit.
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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.
