Brand DjPrecisionMachine

6.7 Common Rail Cummins Precision Plus Reman Long Block Our 6.7 Common Rail Cummins Precision Plus Reman Long Blocks come fully assembled, includin...

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...

Waterman Direct Drive Setup   No need to buy a whole new system when you can just buy the kit! Our Billet Direct Drive setup eliminates the complic...

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...

Heavy Hauler 5.9 Cummins Long Block Our Heavy Hauler 5.9 Cummins Long Blocks come fully assembled, including the oil pan, rear crank seal, front co...

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

Use only the best with our D&J Cummins Head Gasket kit 2007.5-2018 6.7 Includes  head gasket, exhaust manifold gaskets, long intake gasket air ...

Use only the best with our D&J Cummins Head Gasket kit 2007-2007 5.9 Common Rail. Includes head gasket, exhaust manifold gaskets, long intake g...

5.9 Common Rail Cummins Precision Plus Reman Long Block Our 5.9 Common Rail Cummins Precision Plus Reman Long Blocks come fully assembled, includin...

  5.9 Cummins Tool Steel Wrist Pins   D&J Precision Machine manufactures our tool steel wrist pins in-house at our facility in the United State...

Use only the best with our D&J Cummins Head Gasket Kit 5.9 VP44 1998-2002 Includes a head gasket, exhaust manifold gaskets, long intake gasket,...

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...

D&J Precision Machine Street Performance 5.9 Cummins Long Block   Our Street Performance 5.9 Cummins Long Blocks come fully assembled, includi...

D&J Precision Machine Street Performance 6.7 Cummins Long Block Our Street Performance 6.7 Cummins Long Blocks come fully assembled, including ...

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

D&J Precision Machine Cummins Titanium Retainers   Designed for 1998 and up 24v Cummins cylinder heads, our D&J Precision Machine Cummins T...

Use only the best with our D&J Cummins Head Gasket Kit 1989-1998 5.9L 12V. Includes A head gasket, exhaust manifold gaskets, long intake gasket...

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

Stage 3 6.7L Cummins Performance Head Our Stage 3 Cummins Performance Head is designed for extreme high performance. It includes everything in our ...

The Strongest Billet Cummins Rods On The Market   Our stock length X-BEAM Billet Cummins Rods are proven to withstand over 3000hp and 4000 lb/ft. W...

5.9 CR Stage 1 Cummins Performance Head   Our 5.9 CR Stage 1 Cummins Performance Head is a step up in performance without the extra expense and wor...

Billet Direct Drive Mechanical Lift Pump Kit Say goodbye to the complications of dual electric lift pumps. Our Billet Direct Drive Mechanical Lift ...