The Caterpillar 1W8845 is a genuine OEM engine oil filter engineered for a broad spectrum of Caterpillar heavy machinery, including articulated trucks, excavators, wheel loaders, and industrial engines. This standard efficiency filter is crucial for maintaining engine cleanliness and longevity. It features a 1 1/2-16 UN-2B thread size and incorporates a bypass valve to ensure continuous oil flow even under extreme conditions. With a height of 177.8 mm and a diameter of 121.92 mm, this filter provides reliable performance by effectively removing contaminants from the engine oil.