D&J Precision Machine

The D&J Precision Machine Stage 1 Performance Cylinder Head DJPCH100026 is a step up in performance for your 3rd Gen Dodge 5.9L Diesel. This head includes everything from their reman head along...

The D&J Precision Machine Stage 1 Performance Cylinder Head With Fire Rings DJPCH100027 is a step up in performance for your 3rd Gen Dodge 5.9L Diesel. This head includes everything from their...

The D&J Precision Machine Stage 1 Performance Cylinder Head With Fire Rings DJPCH100202 is a direct replacement upgrade for your 5.9L Dodge Ram that improves airflow and durability without...