Supertech Mitsubishi EVO X 4B11 Integral Valve Stem Seal - Set of 16

This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...

Located in San Jose, California, in the heart of Silicon Valley, Supertech was born from the same fertile ground as many other innovative companies. We utilize cutting-edge technology to fuel our growth and deliver the highest performance valves and valve train components available. Why Choose Supertech? Over 30 Years of Experience: Our legacy in the industry ensures top-quality products. Superior Performance: We provide valves and valve train components specifically designed for the racing market. Versatile Applications: Ideal for various types of racing, including: Drag Racing Rally Road Racing And more! Custom Solutions: If you can't find the perfect fit, we are always willing to work with you to custom manufacture the ideal solution for your specific needs. CUTTING EDGE TECHNOLOGY Trusted by the best in the industry, Supertech is committed to leveraging the latest advancements in technology to enhance performance and reliability. Experience the difference with our prod...

Welcome to our Valve Seals collection, where precision meets reliability. Our selection is meticulously curated to provide you with the best valve seals available on the market. Whether you are a professional mechanic or a DIY enthusiast, you will find the right solution for your needs. Why Choose Our Valve Seals? Durability: Our valve seals are made from high-quality materials that withstand extreme temperatures and pressures. Enhanced Performance: Designed to prevent leaks and ensure optimal engine performance. Wide Variety: We offer a diverse range of sizes and types to fit various applications. Easy Installation: Our valve seals are user-friendly and can be installed without professional assistance.   Applications of Valve Seals Valve seals are essential components in various systems, including: Automotive engines Industrial machinery Hydraulic systems Aerospace applications   Shop Our Valve Seals Browse through our collection and find the perfect valve seals for your pr...

Browse all of our valves and valvetrain components at Black Ops Auto Works, including engine valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and related valvetrain hardware for performance builds, engine refreshes, and high-horsepower applications. Whether you are rebuilding a cylinder head, upgrading your valvetrain for higher RPM, or replacing worn valve train components, this collection is built for customers searching for engine valves, valve springs and retainers, valve cover gaskets, performance valve covers, and valvetrain upgrades. Shop Top Valvetrain Brands Find trusted brands in the valve and valvetrain category, including: GSC Power Division Supertech Brian Crower Ferrea Manley Performance Cometic Granatelli Moroso BLOX Racing   These brands are known for performance intake valves, exhaust valves, valve spring kits, titanium retainers, valve guides, valve locks, valve seals, billet valve covers, an...