These Twin Power™ tappet guide gaskets seal the tappet blocks to the crankcase on 1999-2017 Twin Cam engines, helping control oil leaks during valvetrain or cam service.

• Sold in convenient 10-packs for shops and frequent service work
• Help prevent seepage around tje tappet giode cover area
• Direct fit replacements for Harley-Davidson 18635-99
• Made in USA