Introducing the Donaldson primary air filter, a reliable choice engineered for heavy-duty engine applications. With a length of 14.88 inches, an inside diameter of 3.96 inches, and an outside diameter of 7.32 inches, this filter boasts high-efficiency cellulose media, ensuring optimal performance across a diverse range of conditions. The corrosion-resistant, coated steel liners provide crucial support to the media during operation, maximizing airflow for efficient engine function. Additionally, the Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and ultimately extending the filter's service life.