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Cummins Turbocharger 4043400 4043402

Name: Cummins Turbocharger 4043400 4043402
Brand: Komotashi
SKU: 00520
Rating: 4.8 (0 reviews)

Product Name: Turbocharger
Turbo Model: HX40W
Assembly Part No.(Assy.): 4043400
Matching Engine: DCEC Cummins ISL Series Heavy-duty Diesel Engine
Application Scenarios: Heavy-duty trucks, intercity coaches, construction machinery, industrial diesel generator overhaul replacement

HX40W wastegate turbocharger is manufactured by Holset for Dongfeng Cummins (DCEC) ISL large-displacement heavy-duty diesel engines. It compresses intake air to increase cylinder air density, optimizes fuel combustion efficiency, enhances low-speed torque performance, reduces fuel consumption and exhaust emissions, fully compliant with Euro IV, Euro V and China National VI emission standards, serving as high-quality aftermarket replacement spare parts for commercial vehicles and engineering equipment.

Overview

Product Details

Produced strictly following Holset and Cummins original design blueprints, dimensional tolerance standards and industrial production procedures, Assy No.4043400 features unified structural layout, installation dimensions and boost pressure calibration parameters for matched interchange models, enabling direct bolt-on replacement without modification. It effectively solves common turbo failure issues including weak climbing power, excessive black smoke, abnormal oil consumption and severe turbo lag caused by ageing or damage.The rotor assembly undergoes ultra-precise high-speed dynamic balance testing. All finished turbochargers pass air tightness inspection, boost pressure calibration and comprehensive appearance quality verification prior to delivery, capable of sustained stable operation under extreme working conditions: continuous heavy load, frequent start-stop cycles and high exhaust temperature environments.

Product Advantages

High-strength Materials & Robust Structure

Turbine wheel and compressor impeller are crafted from high-temperature resistant nickel-based alloy, possessing outstanding thermal fatigue resistance to adapt to the high exhaust temperature operating environment of heavy-duty large-displacement diesel engines
Advanced floating oil film bearing system ensures steady rotor rotation, effectively prevents oil leakage faults, and bears long-term heavy load impact and frequent urban start-stop conditions
Built-in pneumatic wastegate structure realizes real-time precise adjustment of intake boost pressure, prevents engine damage triggered by overboost, and delivers sensitive low-speed power response

OEM Grade Precision Manufacturing

Overall outline, mounting hole layout and boost parameters are completely consistent with original factory components, supporting direct installation without any alterations
High-precision dynamically balanced rotor lowers running vibration and operating noise, greatly extending the overall service life of the turbocharger
Multi-channel air tightness testing eliminates oil seepage, compressor surge and abnormal exhaust noise problems

Compatibility & Supply Status

Matched Engine: DCEC Cummins ISL Series heavy-duty diesel engines, Turbo Spec: HX40W, Assembly Number: 4043400
Widely used on heavy trucks, highway coaches, wheel loaders, road rollers and fixed industrial generator sets
Complete heavy-duty engine aftermarket spare parts supply chain, abundant stock and short delivery cycle
Brand-new finished products in stock, favorable unit price and flexible cooperation policies for bulk procurement