AIR FILTER PA1702, AIR ELEMENT Descriptions: Dual-Stage Air Element with Blanket and Screen Fits: Cummins, Waukesha Engines; Ingersoll-Rand Compressors Replaces: Allis Chalmers 4052520; Cummins 3001692; Waukesha 163972B O. D.: 12 15/32 (316.7) I. D.: 7 7/8 (200.0) One End