I. Model and Code
Model: Holset HE300VG electrically controlled VGT variable area turbine
Overall part number: 3789601, 3789625, 3786893H (H represents the original factory assembly, and the three codes can be interchanged for the same model and are interchangeable)
Original factory matching: Holset original factory dedicated model for Euro 6, turbocharger for Cumminns ISB/ISBE engines installed on original vehicles
II. Compatible Models
Engine: Cumminns ISB4.5 / ISBE6.7L diesel engine, Euro 6 EURO6 emission standard dedicated
Applicable equipment: European buses, medium-sized freight trucks, modern HX series excavators (HX220/HX300), engineering equipment QSB6.7 powertrain
Power range: Engine power 165–235kW (220–320 horsepower), main models for passenger transport, medium trucks, and engineering equipment
III. Core Structural Features
Electrically controlled variable area VGT structure: Built-in integrated electronic actuator, ECU precisely regulates nozzle ring opening, no mechanical bypass valve, compatible with Euro 6 after-treatment emission requirements, fast low-speed pressure rise, small turbine lag, balanced high and low-speed power.
Cooling method: Oil cooling + water cooling dual cooling intermediate body, resistant to high temperatures, anti-thermal deformation, less oil leakage and engine core burning in long-distance full-load, heavy-duty engineering conditions.
Blade material: High-temperature resistant nickel-based alloy blades, full dynamic balance inspection, original factory dynamic balance standard, durability suitable for long-distance buses and heavy-duty engineering conditions.
IV. Product Usage & Export Attributes
Replacement scenarios: Euro 6 buses, medium trucks, original factory fault replacement for modern excavators, standard components for engine major overhauls;
Stock specifications: New complete machines, original factory remanufactured two categories, must-have and popular models in the automotive parts markets in Europe, Southeast Asia;
Advantages: Original installation without damage, no need to modify pipelines, perfectly matches Euro 6 electric control system of Cumminns ISB/ISBE, meets emission standards, fuel-efficient and durable.