Rebuild Engine QSK45 is the flagship model of Cummins' QSK series, featuring an ultra-large displacement. It serves as the premier power solution for extreme heavy-duty applications such as super-large mines, giant generator sets, and ocean-going vessels. Drawing on over 20 years of industry expertise, Keluo has identified two high-frequency, non-repetitive common faults and simplified repair methods for this engine. This empowers customers to quickly troubleshoot issues, minimize equipment downtime, and reduce operational costs.
The Rebuild Engine QSK45's core competitive advantage lies in its exceptional power reserve and stable performance, derived from its massive displacement. Featuring a 45L displacement with a V-type 12-cylinder turbocharged intercooled design, it delivers power ranging from 930 to 1491 kW and a peak torque of 7163 N·m. Its power output significantly surpasses comparable engines, enabling effortless handling of prolonged, uninterrupted operation under extreme heavy-duty conditions. Its cylinder blocks are forged from high-strength alloys and undergo Keluo's precision refurbishment process. Core components receive reinforced restoration, delivering outstanding impact and fatigue resistance. With a service life exceeding 85% of a new engine's lifespan, it is perfectly suited for extreme operating conditions.
Intelligent operation and maintenance with high adaptability represent another major unique advantage of this machine. Equipped with a simplified smart monitoring module, it provides real-time feedback on operational status, enabling customers to anticipate potential faults proactively. Its components feature a high degree of standardization, with core parts compatible with high-end models in the QSK series, eliminating the need for custom repairs. Combined with a modular design, disassembly and maintenance are both convenient and efficient. During refurbishment, Keluo enhances the precision of its intelligent monitoring system and replaces components with genuine OEM parts, further improving operational convenience.
Addressing extreme overloading conditions, Keluo has identified two exclusive common faults and their repair methods, distinct from those covered previously. The first is uneven fuel injection, typically caused by clogged injectors or aged fuel filters. Symptoms include engine vibration and unstable power output. Repair involves replacing original injectors and fuel filters, cleaning fuel lines, and conducting a test run to restore smooth operation.
The second issue is cooling system overheating, stemming from radiator blockage, water pump failure, or insufficient coolant. This triggers engine warnings and prevents normal operation. After diagnosis, clear debris from the radiator, replace the faulty water pump, and add compatible coolant to ensure proper cooling system circulation. These procedures are straightforward, allowing customers to perform basic maintenance themselves.
Keluo has been deeply rooted in the industry for over 20 years, providing comprehensive support for the Rebuild Engine QSK45. Our dedicated high-displacement engine refurbishment production line employs full-process precision testing to ensure power and performance meet standards. Leveraging our global dealer network and readily available inventory, we deliver within 1-7 days while offering professional troubleshooting guidance and spare parts replenishment, helping customers reduce costs and increase efficiency.
