High quality cylinder head semi assembly with OE number 04E103404P, perfectly applicable to EA211 1.4T engine. Adopting high-grade cast aluminum alloy material, it owns outstanding high temperature resistance, pressure resistance and deformation resistance. Adopting precision CNC integral processing, the air passage, water passage and oil passage are accurately positioned with smooth inner wall, ensuring efficient intake and exhaust and good heat dissipation performance.All mounting holes and assembly interfaces are manufactured strictly in accordance with OEM standards, with high matching accuracy and tight sealing performance. It can effectively improve engine combustion efficiency, solve problems such as power weakness, idle shaking and oil burning, and keep the engine running stably for a long time.The semi-assembly comes with pre-assembled basic parts, easy and fast to install, no need for extra modification. With reliable quality, stable performance and competitive price, it is an ideal spare part for engine overhaul, daily maintenance and bulk wholesale.