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Cummins Turbocharger 3783604 4051033

Name: Cummins Turbocharger 3783604 4051033
Brand: Komotashi
SKU: 00510
Rating: 4.8 (0 reviews)

Product Name: Turbocharger
Matching Engine: DCEC Dongfeng Cummins ISLe / 6LTAA 8.9L L Series Diesel Engine (L340 / L360 horsepower)
Turbo Model: HX40W
OEM Part Numbers: 3783604、4048335
Application Scenarios: Medium & heavy-duty trucks, large passenger coaches, construction machinery, industrial diesel generator overhaul replacement

This HX40W pneumatic wastegate turbocharger carries two interchangeable OEM codes 3783604 and 4048335, customized by Holset for Dongfeng Cummins DCEC 8.9L L-series diesel engines rated at 340HP and 360HP. It increases air density inside cylinders via intake compression, optimizes fuel combustion efficiency, raises engine power output, lowers fuel consumption and black smoke emissions, serving as standard aftermarket replacement spare parts for commercial vehicles and construction equipment maintenance.

Overview

Product Details

Produced strictly in accordance with Holset and Cummins original dimensional drawings, tolerance standards and manufacturing processes, the two part numbers adopt consistent overall structure, installation dimensions and boost pressure parameters and can be mutually replaced for DCEC L-series engines. It effectively resolves common faults including insufficient climbing power, heavy black smoke during acceleration, excessive engine oil consumption and turbo lag caused by turbocharger aging or damage.The rotor assembly undergoes precise high-speed dynamic balance calibration; all finished products pass air tightness test, boost pressure calibration and full appearance inspection before delivery, maintaining stable operation under long-time heavy load, frequent start-stop and high exhaust temperature harsh working conditions.Interchangeable OEM No.: 3783604、4048335

Product Advantages

High-strength Material & Reliable Structure

Turbine wheel and compressor impeller are made of high-temperature resistant nickel-based alloy, featuring excellent thermal fatigue resistance, adapting to the high exhaust temperature working environment of 8.9L large-displacement heavy-duty diesel engines
Floating oil lubrication bearing system guarantees smooth rotor rotation, greatly reduces oil leakage risks, and copes with long-term heavy load impact and frequent urban start-stop conditions
External pneumatic diaphragm wastegate structure accurately controls intake boost pressure in real time, prevents engine damage from overboost, and brings responsive low-speed torque performance

OEM Standard Precision Manufacturing

Overall shape, mounting hole layout and boost pressure calibration parameters are completely consistent with original factory parts, supporting direct bolt-on installation without modification
High-precision dynamically balanced rotor cuts down running vibration and noise, extending the overall service life of the turbocharger
Multi-channel air tightness inspection avoids oil seepage, compressor surge and abnormal exhaust noise issues

Compatibility & Supply Status

Fully matched with Dongfeng Cummins DCEC ISLe/6LTAA 8.9L L340/L360 diesel engines, turbo specification HX40W, interchangeable OEM codes 3783604 and 4048335; widely used for Dongfeng Tianlong heavy trucks, intercity coaches, wheel loaders, road rollers and stationary industrial generator sets
Mature aftermarket spare part system for heavy-duty diesel engines, sufficient stock and fast delivery schedule
Brand-new finished goods in stock, discounted unit price and flexible cooperation terms available for bulk orders

Technical Specifications

Part Name	Applicable Engine	Turbo Model	Supporting Equipment
OEM Part Number	Turbocharger	DCEC Dongfeng Cummins ISLe/6LTAA 8.9L L Series (L340/L360) Diesel Engine	3783604
HX40W	Medium/Heavy Truck, Large Coach, Construction Machinery, Diesel Generator Set	Turbocharger	DCEC Dongfeng Cummins ISLe/6LTAA 8.9L L Series (L340/L360) Diesel Engine