The Donaldson P551100 is a high-quality spin-on oil filter designed for efficient lubrication system filtration. Featuring a 20-micron cellulose media, it effectively removes contaminants to protect engine components. This genuine Donaldson filter includes both a bypass valve and an anti-drainback valve for optimal performance and engine protection during cold starts. With an outer diameter of 76 mm and a length of 95 mm, it is a direct replacement for various agricultural and construction machinery applications, ensuring clean oil flow and extended engine life.