Cummins 6B 3283339 Cylinder Head Gasket PAI 131686CROSS REFERENCE: 3283002 3283339 3905073 3907059 3915724 3921398 APPLICATION: Cummins 6B Multiple Use Application. DETAILS: Cylinder Head Gasket . 50mm Oversize BRAND: PAI 131686 Cummins 6B 3283339 Cylinder Head Gasket PAI 131686. Heavy duty parts and heavy duty truck parts. Prevents fluid leaks. 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