V-Thunder/Competition Cam DS1003 Hydraulic Roller Full-Travel Tappets

Full-travel hydraulic roller tappets are ideal when replacing OEM tappets. An easy, drop in replacement for stock. Rollers and axles are manufactured from high-carbon/ chromium bearing-quality steel, then through-hardened for improved wear and load-carrying capability. Premium materials ensure long, reliable operation. Features an oil metering design that offers proper top-end lubrication throughout the entire rpm range. Each tappet is precision i. d. Ground and matched with a Graded piston, ensuring reliable pump-up and quiet operation. Sold in a set of four. Made in the USA.