Caterpillar 1662905 Oil Pan Gasket PAI 331337CROSS REFERENCE: 166 2905 1662905 APPLICATION: Caterpillar 3126B C7 Series Multiple Use Application. BRAND: PAI 331337 Caterpillar 1662905 Oil Pan Gasket PAI 331337. Heavy duty truck parts and diesel truck parts. Provides sealing and maintains controlled lubrication for engine operation. 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