Boundary VK56 Timing Sprocket

Billet Crank Sprockets from Boundary follows the same heritage as our oil pump gears, manufactured 100% in-house with US-sourced materials. These sprockets start with chromoly steel that is 10 times stronger than the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear.

• All sprockets heat treated to maximum hardness while maintaining toughness
• Precision CNC machined and broached for snug accurate fit
• Dimensions checked after machining and after heat treatment for guaranteed fit.
• 80% more cross-section versus OEM at the keyway
• Weighs 30% more than OEM
• High finish reduces friction and chain vibration
• New tooth geometry strengthens teeth and keyway

Includes 2 sprockets, one for each chain