THESE ARE INDIVIDUALLY SOLD PUSHRODS Upgrade the pushrods in your 6.0 with a set of KDD's track proven one piece chromoly pushrods.  We use these i...

We're proud to present the most comprehensive valvetrain innovation for the Powerstroke platform to date.  These were developed in conjunction with...

This kit features premium USA Made beehive valve springs, tool steel retainers, locks, spring seats, and valve stem seals for your 2001-2016 Durama...

KDD spec heavy duty pushrods are a drop in replacement for the weak factory pushrods, add a set to your next build to prevent failure.  These are s...

Please note that the 100lb springs are currently on back order and may take 4-6 weeks to ship. By purchasing them, you acknowledge and agree to the...

Fully Assembled 5.9 24 Valve ISB Cummins Cylinder Head Features: 100% New Casting, Assembled with USA Made Valves and Springs Includes premiu...

  Built Stronger. Engineered to Last.   The Kill Devil Diesel HD 12-Valve Cummins Cylinder Head is designed for customers who demand greater durab...

5.9 24 Valve VP44 Cummins Cylinder Head Features:     100% New cylinder head, machined and assembled in the USA Heavy Duty hardened valve se...

We're proud to present the most comprehensive valvetrain innovation for the Powerstroke platform to date.  These were developed in conjunction with...

KDD's chromoly pushrods are tough enough to handle anything you can throw at them, used in all of our Cummins engines built in house, these are mad...

This kit includes KDD chromoly pushrods, and USA made KDD valve springs, available in 80, 100, and 120 lb increments! 

Valve spring upgrade for the 7.3 Powerstroke Approximately 90psi springs

KDD is proud to present our exclusive line of Jesel rocker arms for the 6.6L GM Duramax.  We had the honor of working with the world renowned valve...