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49135-03320 Turbocharger Core for CAT 307D 4M40T

Aftermarket replacement core for FOR 49135-03320, designed for CAT 307D and 308D with 4M40/4M40T engines. Verify OEM reference 49S35-03320 and application details before ordering.

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

Type Core On backorder — orders accepted Part # FOR 49135-03320 Packing N/A
Cross Reference FOR 49S35-03320
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12-Month Warranty Shipping to Canada only. OEM-Grade Quality

This aftermarket replacement core for FOR 49135-03320 is designed for Caterpillar CAT 307D and 308D excavators equipped with 4M40 and 4M40T engines. It serves as a targeted component for repair shops and fleet buyers seeking to address core-related failures while retaining serviceable turbine and compressor housings.

Key Specifications

  • Part Number: FOR 49135-03320
  • Product Type: Turbocharger Core (CHRA)
  • OEM Reference: FOR 49S35-03320
  • Application Clues: Caterpillar CAT 307D and CAT 308D excavators
  • Engine Codes: 4M40, 4M40T
  • Packing: N/A
  • Gross Weight: 0 kg
  • Image Availability: Not provided

This core is listed for replacement applications in Caterpillar excavators equipped with 4M40 or 4M40T engines. Buyers should verify the specific engine code and production year against their equipment documentation to ensure the correct component is selected for their repair needs.

Application & Compatibility

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

  • Caterpillar > CAT > CAT EXCAVATOR 307D > 4M40 4M40T
  • Caterpillar > CAT > CAT 308D > 4M40 4M40T

This core is listed for replacement applications in Caterpillar CAT 307D and CAT 308D excavators equipped with 4M40 or 4M40T engines. Buyers should verify the specific engine code, production year, and turbo configuration against their equipment documentation to ensure the correct component is selected. The supplied OEM reference FOR 49S35-03320 serves as a key identifier for cross-checking fitment. Confirm that the turbine and compressor housings are serviceable before selecting a core-only repair over a complete unit replacement.

Technical Notes

This core is a balanced CHRA assembly intended for replacement applications in Caterpillar 4M40 and 4M40T engines. It is not a complete turbocharger; it does not include turbine or compressor housings. Buyers should verify the specific engine code, production year, and turbo configuration against equipment documentation. Confirm that the existing housings are serviceable before selecting a core-only repair. The supplied OEM reference FOR 49S35-03320 serves as a key identifier for cross-checking fitment. Technical fitment support is available to assist with verification before ordering.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for this FOR 49135-03320 core. Technical fitment support is available to assist with verifying the 4M40/4M40T engine application and OEM reference FOR 49S35-03320 before ordering. Inquire for bulk quotes or to confirm specific equipment documentation requirements for your fleet.

Product FAQ

Look for excessive oil consumption, smoke, or loss of boost pressure in CAT 307D or 308D units. These symptoms often point to core wear requiring inspection or replacement.

If the turbine or compressor housings are damaged or the actuator is faulty, replacing the complete unit may be more efficient. For isolated core failure, this component is a suitable replacement application.

Replacing only the core reduces cost when the housings and actuator are intact. It is a targeted solution for 4M40T engine failures where the main body remains serviceable.

The supplied data lists FOR 49S35-03320 as a representative OEM reference. Buyers should verify this reference against their specific vehicle documentation before ordering.

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 FOR 49135-03320, engine code 4M40/4M40T, vehicle application (CAT 307D/308D), and OEM reference 49S35-03320 before ordering. Confirm turbo configuration and production year for fitment accuracy.

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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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