331165 | CAT C15 Upper Gasket Set | PAI 3406 If you're running 500–550 HP

If you're running 500–550 HP on your CAT C15 or 3406E and not doing major modifications

✅ 360° Thrust Bearing – Enhanced durability to handle high boost levels and extreme conditions

rear and center pieces as a single unitlDetroit Diesel Series 60 application

Available For: Detroit 14L & Cummins ISX Engines

331165 | CAT C15 Upper Gasket Set | PAI 3406 If you're running 500–550 HPCAT C15 Upper Head Gasket Set SKU: 331165 This CAT C15 Upper Head Gasket Set is a complete sealing solution designed for reliable top end engine service on Caterpillar C15 and 3406E engines. Built to meet OEM style fit and performance standards, this kit ensures proper sealing during cylinder head and upper engine component installation. Engineered to withstand high temperatures and operating pressures , this gasket set helps prevent leaks, maintain