Engine valves.
Precision in motion.
Intake and exhaust valves, backed by dedicated manufacturing expertise.
Engine valves.
A focus on valve manufacturing
Welding expertise
Bimetal friction welding and plasma overlay welding.
CNC machining
Dedicated PAL CNC production equipment.
Surface treatment
Nitriding, rod-end hardening and laser surface treatment.
Attention to the surface.
Strength at the core.
QPQ salt bath nitriding is part of our approach to surface strength, wear resistance and fatigue resistance.
Get to know JiukaiValves for automotive engines
Jiukai manufactures intake and exhaust valves for automobiles and internal combustion engines.
Explore products
Intake valves
Intake valves for automotive and internal combustion engines. Search by make, model or OE number.
Exhaust valves
Exhaust valve listings include dimensions and vehicle applications to help you select a suitable product.
Surface treatment
Manufacturing processes include QPQ salt bath nitriding and valve stem tip hardening.
Valve manufacturing experience
Our team brings experience in valve development, design, production and service to discussions about your requirements.
Let’s discuss your valve requirements.
Share an OE reference or product enquiry with our team.