Cummins ISB/QSB 3975179 Flywheel Housing PAI 060015CROSS REFERENCE: 3975179 APPLICATION: Cummins ISB QSB Multiple Use Application. BRAND: PAI 060015 Cummins ISB QSB 3975179 Flywheel Housing PAI 060015. Heavy duty truck parts and commercial truck parts. Supports housing fitment and engine connection. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50 years of experience in the heavy duty truck parts industry. This part is built