Have A Quick Question? Text Us! (915)-895-3833 *Emailing may be required*

Baja Designs In Stock Ready To Ship!

S&S DCR Kits & DPK Kits In Stock!

Big Bang Injectors In Stock!

D&J Precision Machine Brand

56 products

D&J Precision Machine isn’t just a name—it’s a promise. A promise of excellence, a commitment to innovation, and a partnership in performance. Join us as we power forward into the future.

Brand Show all Brand
Product Type Show all Product Type
Sold Out
D&J Precision | 24V Cummins 115LB Valve Springs
$567.00
$567.00
Our HD 115lb 24v Cummins Valve Springs have been proven with years of testing. We have seen over 120psi of boost on one of our Stage 3 cylinder heads with these springs. These are the same valve sp...
D&J Precision | 2007.5-2018 Dodge Ram 6.7L Cummins Head Gasket Kit
$565.00
$565.00
Use only the best with our D&J Cummins Head Gasket kit 2007.5-2018 6.7 Includes genuine Cummins head gasket, exhaust manifold gaskets, long intake gasket air horn gasket, injector install kit w...
D&J Precision | 0.500
$176.00
$176.00
0.500″ Taller Billet 5.9 Cummins Grid Heater Delete suited for 1998.5-2007 Dodge 5.9L Cummins Diesel. Extra clearance Billet aluminum Get more airflow into your engine and avoid boost leaks. ...
D&J Precision | Cummins Billet Front Freeze Plug
$80.00
$80.00
Introducing our newly designed Cummins Billet Front Freeze Plug that does not leak! Our billet front freeze plug is designed to be held in by a factory fan support. Included: 1 Front Billet Fre...
D&J Precision | Billet Air Kill 5.5 Inch OD Cover
$878.00
$878.00
Billet Air Shut Off Guillotine for sled pulling applications. Dual internal spring design utilizing a 1/4in thick aluminum blade. Includes set screw or weld-on flange and genuine Cummins v-band. In...
D&J Precision | 1989-1998 Dodge Ram 5.9L 12V Cummins Head Gasket Kit
$351.00
$351.00
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, air horn gaskets, injector install kit with cros...