Full Range Turbocharger Solutions for Cummins Engines

K19 Series Turbochargers: Robust Core for Heavy-Duty Operations

As the cornerstone of Cummins high-horsepower platforms, K19 engines are widely deployed on heavy mining machinery and marine power systems. We provide tailored turbocharger solutions (HE500, HX82 series) for K19 and KTA19 engines, engineered to withstand sustained extreme burst pressure.

Core part numbers include 4955173, 3594195 and 2881753. All models pass original  factory validation to guarantee perfect matching performance. Material & Craft AdvantagesTurbo housings are cast from high-nickel austenitic cast iron with an ultra-low thermal expansion coefficient. The material maintains structural stability under long-term scouring of high-temperature exhaust gas, effectively preventing seal failure caused by thermal deformation.Reinforced Bearing SystemSince K19 engines are commonly fitted on generator sets and heavy bulldozers, the internal bearing assembly of matched turbochargers is structurally strengthened. Equipped with full-floating copper bushings and optimized precision oil galleries, the lubrication system sustains stable oil film support during prolonged idling or heavy-load operation, greatly extending overall service life.

NT855 Series Turbochargers: Reliable Partner of Classic Mechanical Power

The NT855 is Cummins’ most iconic 14-liter mechanical engine. Its matching turbochargers (HT3B, HX35W series) are well-known for rugged durability. Our NT855 turbochargers (part numbers including 3525410, 3594175, 3026924) fit perfectly on bulldozers from Shantui, Komatsu and legacy generator sets.

Technical Features

This turbo series is specially aerodynamically matched to the combustion characteristics of PT fuel systems. The turbine housing adopts pulse intake design to recover exhaust energy more efficiently and boost low-speed torque response — a critical advantage for bulldozers with frequent start-stop and heavy-load takeoff conditions.

Impellers are forged from high-strength aluminum alloy and processed by 5-axis CNC machining with ultra-precise dynamic balance, greatly cutting mechanical noise and vibration.

To address insufficient oil lubrication common on older units, we optimize the oil return passage of the center housing to eliminate oil leakage and carbon deposition, ensuring long-term stable operation under harsh working conditions.

L10 Series Turbochargers:

Cost-Efficient Power Core

for Transportation

L10 (ISLe/L9) series engines focus on fuel economy and lightweight design, widely used in heavy-duty trucks and medium construction machinery. We supply advanced turbochargers including HY40W (part numbers: 2881753, 2839309) for this platform, which cut fuel consumption by boosting air intake efficiency.

Technical Advantages Adopting Holset’s latest aerodynamic design, the compressor impeller receives special flow rectification treatment to greatly expand the high-efficiency flow range. Within the engine’s regular operating speed band, the turbo delivers sufficient air supply for complete combustion and directly reduces vehicle fuel consumption.Tailored for the compact engine compartment layout of L10 engines, the turbo is equipped with an integrated heat shield and optimized exhaust outlet angle. It lessens thermal radiation to surrounding pipelines and simplifies vehicle installation and maintenance.The sealing system uses multi-piece combined piston rings to effectively prevent oil leakage, complying with strict environmental and cleanliness standards of modern commercial vehicles.

QSX15 & QSK60 Turbochargers: Intelligent Boost Technology for Electronically Controlled Engines

For modern electronically controlled engines such as QSX15 (15L) and QSK60 (60L) equipped with high-pressure common rail and double overhead camshaft technology, turbochargers have evolved from simple mechanical components into integral parts of the intelligent control system. Our QSX15/QSK60 turbochargers (part numbers: 4025027, 4089809) represent Cummins’ top-tier turbocharging technology.For ultra-large-displacement V-type engines like QSK60, we deliver twin turbo systems with precisely calibrated flow matching. This ensures synchronization and stability of the two turbochargers at high speeds and eliminates surge risks.Technically, these turbochargers integrate advanced Variable Geometry Turbocharger (VGT) or electronic wastegate control. They adjust exhaust flow accurately within milliseconds based on commands from the ECM (Engine Control Module). This delivers optimal boost pressure across the entire engine speed range, while actively supporting engine thermal management and emission control.In production, turbine blades are manufactured from single-crystal high-temperature alloys via laser welding. They withstand instantaneous exhaust temperatures exceeding 1000°C, guaranteeing reliable performance for critical applications including data center backup power supplies and large mining excavators.