Precision Works Timing Chain Vented Tensioner Cover Plate AN10 Oil Return Honda K-SeriesPrecision Works Honda K Series Billet Aluminum Timing Chain Tensioner Cover Plate with Integrated 10AN ORB fitting. Now you can add an oil return line or oil catch can drain without any drilling or welding! O ring seals on both the cover plate and AN10 fitting to seal any leaks! This is a must have for any turbo setup, adding an oil catch can drain, or checking timing chain tensioner. Includes: Timing Chain Tensioner Cover Plate AN10 ORB fitting O