Our ENFORCER 6.7 Deck Plate Cummins comes fully assembled from oil pan to D&J Billet LED Valve Cover.
All D&J Precision Machine Performance Long Blocks are blueprinted, balanced, oil clear...
Our Performance 6.7 Cummins come fully assembled from oil pan to rockers with our X-Beam Stock Length Billet Rods and our Stage 2 High Performance Cylinder Head. We custom build this engine fo...
D&J Precision Machine Street Performance 6.7 Cummins Long Block.
Our Performance Street 6.7 Cummins come fully assembled including the oil pan rear crank seal front cover and crank seal, and oi...
Our Stage 4 Cummins Performance Head is designed for the extreme high performance. Includes everything in our Stage 3 Head, with a D&J Stage 4 Billet Runner style intake manifold. This head ca...
Our Stage 3 Cummins Performance Head is designed for the extreme high performance. Includes everything in our Stage 2 Cummins Performance Head, with a D&J Stage 3 Billet Intake Manifold, overs...
Custom LED Cummins Billet Valve Cover fits 2006+ Cummins.
Unlike the other billet valve covers on the market we designed our Custom LED Cummins Billet Valve Cover with function first. We designed ...
