The Donaldson P550318 is a high-quality spin-on lube oil filter engineered for superior engine protection in demanding agricultural and construction equipment. This genuine Donaldson filter features a robust cellulose media, an outer diameter of 93 mm, and a length of 175 mm. It is designed with a 1-16 UN thread size and includes an anti-drainback valve to prevent dry starts, ensuring reliable performance and extended engine life. It serves as a direct replacement for various OEM part numbers, including Caterpillar 1R0716, John Deere RE504836, and New Holland 84222079.