S&S Cycle Piston Cooling Jet Kit For Harley Twin Cam Enhancing engine longevity is crucial, whether it's restoring the original Twin Cam or constructing a big-bore engine. To this end, it is recommended to replace the standard OEM single-jet oilers with the newly designed dual-jet oilers that ensure uniform cooling of pistons from both sides. Features: Milled from Billet Aluminum 6061-T6 Revised spray locations for more effective cooling Dual jets for uniform piston cooling Shorter than OEM for greater rod clearance Includes all needed gaskets and hardware Equivalent Oil Flow to stock US Patent #11927127 Note: As in any custom performance build, S&S recommends checking clearances before final assembly.