The Cat 3406C B Caterpillar Diesel Engine Rocker Arm Housing Base 7E-0329 OEM is a genuine part manufactured by Caterpillar in the United States. This high-quality base serves as the foundation for the rocker arm housing in a diesel engine, ensuring durability and reliability. With the OE/OEM part number 7E-0329 and a manufacturer warranty, this product is designed to meet the standards of quality and performance expected for Caterpillar engines.