The GRANIT 1825181C91 Oil Filter is a high-quality aftermarket replacement designed for various Perkins engine series, including 1000, 1100, 4.236, 4.41, 6.354.4, 704-30, 804C-33, 804D-33T, and V8.540. This spin-on oil filter effectively removes contaminants from engine oil, ensuring clean lubrication and extending engine life. It features a 3/4-16 UNF thread, an outer diameter of approximately 93 mm, and a height of 140 mm, with a gasket diameter of 72 mm. It directly replaces the Perkins OEM part number 1825181C91.