Twin Power™ transmission mainshaft seal fits 2007-2015 Twin Cam Big Twin and 2006 Dyna 6-speed transmissions, sealing the mainshaft at the primary side.

• Sold in convenient 10-packs for shops and frequent service work
• Designed for 6-speed Twin Cam and 2006-up Dyna applications
• Direct fit replacement for Harley-Davidson 12077
• Made in USA