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3777587 HE800FG Turbocharger Replacement for Cummins QSK50

Aftermarket HE800FG turbocharger, part number 3777587, for Cummins QSK50 engines. Reference application includes Hitachi EX5500-6 and Komatsu 730E-8. Verify fitment before ordering.

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

Type Turbocharger On backorder — orders accepted Part # 3777587 Models HE800FG Weight 60.00 kg Packing 41*43*45
Cross Reference 3777588
Show more cross references 3777588 3782267
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12-Month Warranty Worldwide shipping excluding Canada and China. OEM-Grade Quality

This aftermarket HE800FG turbocharger, part number 3777587, serves as a replacement unit for Cummins QSK50 engines. It is listed for reference applications including Hitachi EX5500-6 and Komatsu 730E-8 mining equipment. Buyers should verify OEM reference numbers 3777588 and 3782267 against their specific equipment records to confirm fitment before ordering.

Key Specifications

  • Part Number: 3777587
  • Turbo Model: HE800FG
  • Product Type: Complete Turbocharger Assembly
  • Packing Dimensions: 41 x 43 x 45 cm
  • Gross Weight: 60 kg
  • OEM Reference Numbers: 3777588, 3782267

These specifications support initial identification of the HE800FG unit for Cummins QSK50 applications. Buyers should cross-reference the part number and OEM references against their equipment records to ensure the correct replacement unit is selected for their specific mining equipment.

Application & Compatibility

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

  • HITACHI > Hitachi EX5500 > Hitachi EX5500-6 > Cummins QSK50
  • BelAZ > 75180 > 75180 Mining haul truck > CUMMINS QSK50
  • KOMATSU > 730E-8 > 730E-8 Mining haul truck > CUMMINS QSK50
  • KOMATSU > HD1500-8 > HD1500-8 Mining haul truck > CUMMINS QSK50
  • KOMATSU > PC3400-11 > PC3400-11M0 > PC3400-11M0 Mining excavator > CUMMINS QSK50
  • LIEBHERR > R 9400 G6 > R 9400 G6 Mining excavator > CUMMINS QSK50
  • LIEBHERR > R 9600 G8 > R 9600 G8 Mining excavator > CUMMINS QSK50

This HE800FG turbocharger is listed for reference applications across heavy-duty mining equipment powered by Cummins QSK50 engines. The supplied application paths include Hitachi EX5500-6, BelAZ 75180, Komatsu 730E-8, Komatsu HD1500-8, Komatsu PC3400-11, Liebherr R 9400 G6, and Liebherr R 9600 G8. These entries serve as identification clues for buyers verifying part number 3777587 against their specific equipment records. Always confirm the engine code, vehicle model, and OEM reference numbers 3777588 or 3782267 before ordering to ensure the correct replacement unit is selected for your fleet.

Technical Notes

The HE800FG is a large-displacement turbocharger designed for high-output diesel engines such as the Cummins QSK50. This unit is typically used in heavy-duty mining applications where consistent airflow and stable operation are required. Buyers should verify the turbine housing flange type and compressor A/R ratio against their specific equipment records. For twin-turbo setups, confirm whether both positions require the same part number or distinct variants. Technical fitment support is available to assist with these verification steps.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 3777587 HE800FG turbocharger. Technical fitment support is available to help verify turbine housing flange types, compressor A/R ratios, and OEM reference numbers 3777588 or 3782267. This service assists fleet parts buyers in confirming the correct replacement unit for Cummins QSK50 applications before shipment. Inquire for current stock status and bulk order terms.

Product FAQ

The supplied data lists two representative OEM reference numbers: 3777588 and 3782267. Buyers should cross-check these against their specific equipment records to confirm fitment.

Inspect the existing turbine housing on the Cummins QSK50 engine to match the flange orientation and bolt circle. Compare these physical dimensions against the HE800FG replacement unit before installation.

Verify the A/R ratio of the compressor housing on the HE800FG unit matches the original specification for the Hitachi EX5500-6 or Komatsu 730E-8 application to ensure stable operation.

If the Cummins QSK50 engine uses a twin-turbo configuration, order the correct HE800FG unit for each position. Confirm whether both sides require the same part number or distinct variants.

Hitachi EX5500 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 Hitachi EX5500.

Compatibility Verify part number 3777587, engine code Cummins QSK50, vehicle application, and OEM reference numbers 3777588 or 3782267 before ordering. Confirm turbine housing flange type and compressor A/R ratio match your specific unit.

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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.