DjPrecisionMachine

1/2" Taller Billet 5.9 Cummins Grid Heater Replacement   Our 1/2" Taller Billet 5.9 Cummins Grid Heater Delete is designed to provide extra clearan...

D&J Precision Machine 9/16x6.5" Head Stud Kit   Our 9/16x6.5" head stud kit is designed and manufactured for ultimate performance and reliabili...

The 5 Axis Intake Horn fits a 6.7 intake and can have a 3.5" or 4" vibrant clamp welded onto it. It does not have an oil dipstick relocation bracke...

Billet Air Shut-Off Guillotine with Velocity Stack Our Billet Air Shut-Off Guillotine with Velocity Stack is designed for high-performance applicat...

Billet Air Shut-Off Guillotine   Our Billet Air Shut-Off Guillotine is designed for high-performance applications, providing reliable performance, ...

Cummins Billet Freeze Plugs Kit Introducing our newly designed Cummins Freeze Plugs that eliminate leaks! Our Billet Freeze Plugs kit features an i...

Cummins Billet Front Freeze Plug Introducing our newly designed Cummins Billet Front Freeze Plug that eliminates leaks! This innovative front freez...

  D&J Precision Machine Oil Cap Cover Our D&J Precision Machine Oil Cap Cover is a great way to represent our brand. This cover is the same...

Billet Turbo Drain -10AN Our Billet Turbo Drain -10AN is designed and machined in-house to provide a reliable and versatile solution for your turbo...

Cummins Billet Rear Freeze Plug The Cummins Common Rail '03-to-Current Billet Rear Freeze Plug addresses the common issues associated with high coo...

Cummins Billet Side Freeze Plug Introducing our newly designed Cummins Billet Side Freeze Plug that eliminates leaks! Our innovative design require...

Billet Stage 2 Intake Manifold   The Billet Stage 2 Intake Manifold is specifically designed for our Stage 2 cylinder heads. It is available with e...

Billet Stage 2 P-Pump Intake Manifold The Billet Stage 2 P-Pump Intake Manifold is specifically designed to fit on our 24v cylinder head, providing...

Cummins Billet Timing Cover Our Cummins Billet Timing Cover is expertly machined in-house from high-quality 6061 aluminum, ensuring durability and ...

 Billet Valve Cover 03-05 Black Powder Coat Our Billet Valve Cover 03-05 is meticulously designed in-house to achieve the perfect balance of fit,...

Billet Valve Cover 2006 - Present Black Powder Coat Our Cummins Billet Valve Cover is meticulously designed in-house to achieve the perfect balance...

Billet Valve Cover 06 to Present Year Raw Finish Our Cummins Billet Valve Cover for 2006 to present year models is meticulously designed in-house t...

Introducing our in-house designed 03-05 Cummins billet valve cover, balancing fit, finish, functionality, and budget.  Superior Construction ...

Mahle 1413H Rod Bearings (Drilled) Our Mahle 1413H rod bearings are drilled in-house to enable pressure lubrication of the wrist pins in our X-BEAM...

D&J Precision Machine Dual CP3 Billet Timing Gear Housing Kit   D&J Precision Machine was the first to design and manufacture a billet timi...

5.9 Common Rail Head Gasket set with 4.305" x .105" rings 

6.7 Fire ring Head Gasket Set With 4.305" x .105"  Fire Rings