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Cummins Turbocharger 3785228 3795952

  • Product Name: Turbocharger
  • Turbo Model: HE400WG
  • Assembly Part No.(Assy.): 3785222
  • Serial Number: W1803231681
  • Interchangeable OEM Numbers: 4037541, 4046098, 3783430, 3785224, 3785225
  • Matching Engine: Cummins ISL / Weichai WP Series Heavy-duty Diesel & Natural Gas Engine
  • Application Scenarios: Heavy-duty trucks, intercity coaches, construction machinery, industrial diesel generator overhaul replacement

HE400WG variable geometry wastegate turbocharger is developed by Holset for medium-to-large displacement heavy-duty diesel and natural gas engines. It compresses intake air to elevate cylinder air density, optimizes fuel combustion efficiency, improves low-speed torque output, reduces fuel consumption and exhaust emissions, fully complying with Euro IV, Euro V and China National VI emission standards, serving as genuine aftermarket replacement spare parts for commercial vehicles and engineering equipment.

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Product Details

HE400WG variable geometry wastegate turbocharger is developed by Holset for medium-to-large displacement heavy-duty diesel and natural gas engines. It compresses intake air to elevate cylinder air density, optimizes fuel combustion efficiency, improves low-speed torque output, reduces fuel consumption and exhaust emissions, fully complying with Euro IV, Euro V and China National VI emission standards, serving as genuine aftermarket replacement spare parts for commercial vehicles and engineering equipment.

Manufactured strictly according to Holset and Cummins original design drawings, dimensional tolerance standards and production processes, Assy No.3785222 share unified structural layout, installation dimensions and boost pressure calibration parameters with all interchange serial part numbers, supporting direct mutual replacement. It thoroughly resolves typical malfunctions caused by turbo aging and damage, including insufficient climbing power, excessive exhaust smoke, abnormal oil consumption and obvious turbo lag.The rotor assembly undergoes ultra-precise high-speed dynamic balance testing; all finished products pass air tightness inspection, boost calibration and comprehensive appearance quality verification before delivery, capable of stable long-term operation under severe working conditions such as continuous heavy load, frequent start-stop and high exhaust temperature.Interchangeable OEM No.: 3785222, 4037541, 4046098, 3783430, 3785224, 3785225

Product Advantages

High-strength Material & Durable Structure

  • Turbine wheel and compressor impeller adopt high-temperature resistant nickel-based alloy, featuring outstanding thermal fatigue resistance, adapting to high exhaust temperature operating environment of large-displacement heavy-duty engines
  • Advanced floating oil film lubrication bearing system guarantees stable rotor rotation, effectively avoids oil leakage faults, and bears long-time heavy load impact and frequent urban start-stop cycles
  • Integrated pneumatic control wastegate structure realizes real-time accurate regulation of intake boost pressure, prevents engine damage from overboost, and delivers sensitive low-speed power response

OEM Standard Precision Machining

  • Overall outline, mounting hole positions and boost parameters are completely consistent with original factory components, supporting bolt-on direct installation without any modification
  • High-precision dynamically balanced rotor cuts down running vibration and noise, greatly extending the overall service life of the turbocharger
  • Multi-channel air tightness detection eliminates oil seepage, compressor surge and abnormal exhaust noise issues

Compatibility & Supply Status

  • Compatible with Cummins ISL Series & Weichai WP Series heavy-duty diesel/natural gas engines, turbo specification HE400WG, assembly number 3785222; widely applied to heavy trucks, passenger buses, wheel loaders, road rollers and stationary industrial generator units
  • Mature heavy-duty engine aftermarket spare parts system, adequate inventory and short delivery cycle
  • Brand-new genuine finished goods in stock, discounted unit price and flexible cooperation terms for bulk procurement

Technical Specifications

Part Name Applicable Engine Assembly No. Turbo Model Supporting Equipment
Turbocharger Cummins ISL / Weichai WP Series Heavy-duty Diesel & Natural Gas Engine 3785222 HE400WG Heavy Truck, Large Coach, Construction Machinery, Diesel Generator Set

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