Images are for illustrative purposes only and may not reflect the actual product
Twin Power 77-90 XL Primary Chain Adjuster Lining Replaces H-D 39966-80
TwinPower
Choose options
Keep the proper tension on your primary chain with the Twin Power™ Primary Chain Adjuster Linings.
- Constructed for quiet, reliable operation in the primary
- Designed as direct replacements for worn OEM linings
- Help maintain consistent chain tension over time
- Replaces H-D® 39966-80
Subscribe to our newsletter
Promotions, new products arrivals and latest releases, sales and discounts. Directly to your inbox.