Detroit Diesel 23518207 Intake Manifold PAI 681120CROSS REFERENCE: 23518207 APPLICATION: Detroit Diesel Series 60 Multiple Use Application. DETAILS: Intake Manifold 45 Degree Inlet. BRAND: PAI 681120 Detroit Diesel 23518207 Intake Manifold PAI 681120. Aftermarket truck parts and truck repair parts. Supports air intake flow and stabilizes engine combustion efficiency. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50 years of