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
Part Number VK56-SP Fits:
- Nissan Armada 2004 All Models
- Infinity Qx56 2004-2006 All Models
