The Perkins air filter S551-4, as the core protective component of the engine, is of great significance for the long-term operation of the equipment. If the engine inhales air containing impurities during operation, it is easy to cause cylinder wear and a decrease in fuel efficiency. However, this filter element, with its unique multi-layer filtering structure, can efficiently capture pollutants such as dust and gravel, preventing them from entering the combustion chamber and reducing potential faults from the source.
The filter element has outstanding durability. It is made of anti-aging materials and can adapt to high temperature, high humidity and other complex working conditions. After a long time of use, the filter performance is not easy to decay and the replacement frequency is reduced. Its precise size calibration ensures a perfect fit with the corresponding engine model, without the need for additional adjustments during installation, saving maintenance time.
Ningbo Qiuning Trading Co., Ltd. supplies Perkins air filter S551-4, offering two options: original factory and auxiliary factory. The original factory products strictly follow Perkins' production standards and meet the requirements of the original equipment in terms of filtration accuracy and adaptability, making them suitable for users with strict performance requirements; The subsidiary products undergo strict quality testing, ensuring basic protective functions while having higher cost-effectiveness and meeting cost control requirements.
The company has been deeply involved in this field for many years, focusing on product quality and customer experience, and can provide professional selection suggestions for users. No matter what kind of product you need, you can consult anytime. Contact information: WeChat/WhatsApp:+8615888032469, Email: allen@perkins-rx.com .

There are numerous models of Perkins engines, mainly divided into multiple series, including the 400 series, 1000 series, 1100 series, 1300 series, 2000 series, and 4000 series.
403D-11 ™ IOPU engine, rated power/speed of 17.9/3000 kw/rpm; 403D-15 ™ engine; 1104D-44T ™ IOPU engine; 1104C-44 ™ Industrial engines, etc.
In addition, there are 2806D-E18 engine with a displacement of 18.1L and a maximum power of 597kW; 2206D-E13 engine with a displacement of 12.5L and a maximum power of 388kW; 404D-22 engine, etc.
The 1103 engine is also very common, using advanced four stroke diesel cycle technology, with the characteristics of high compression ratio, high power density, and low fuel consumption.
Perkins also has 1200 series, 850 series, 1106D-E70TA ™ Industrial diesel engines, etc.
The 400 series engine is lightweight, compact, and economical, suitable for light machinery and generator sets.
The 1000 series may have better performance in terms of power and torque, making it suitable for medium-sized construction machinery.
The 1100 series may have advantages in fuel efficiency and reliability, and can meet the long-term operational needs of agricultural machinery.
The 1300 series may have stronger power output and is suitable for large ships.
The 2000 series may excel in stability and durability, making it suitable for power generation equipment.
The 4000 series may be designed specifically for heavy construction machinery, with ultra-high power and high load-bearing capacity.