D&J PRECISON MACHINE

D&J PRECISION MACHINE 0.500″ TALLER BILLET 5.9 CUMMINS GRID HEATER DELETE

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...

D&J PRECISION MACHINE 03-05 DODGE CUMMINS BILLET VALVE COVER

We designed our 03-05 Cummins billet valve cover in-house for the best balance of fit, finish, and functionality, while keeping your budget in mind.   These valve covers are made...

D&J PRECISION MACHINE 115LB 24V CUMMINS VALVE SPRINGS

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...

D&J PRECISION MACHINE 24V CUMMINS TITANIUM RETAINERS

D&J Precision Machine Cummins Titanium Retainers for 1998 and up 24v Cummins cylinder heads. Our valve spring titanium retainers are proudly made in-house and they are 10 grams lighter than...

D&J PRECISION MACHINE 24V HEAVY DUTY 7/16″ .168 WALL PUSH TUBES

Our 7/16″ .168 wall push rods for 24V engines have the advantage of  strength and rigidity. They have been proven to 3000+ HP and are still good for your daily driven truck...

D&J PRECISION MACHINE 5.9 CUMMINS TOOL STEEL WRIST PINS

Our D&J Precision Machine branded 5.9 Cummins Tool Steel Wrist Pins come in a complete set of 6. Dimensions 3.250″ Length 1.575″ Outer Diameter, 0.330″ Wall...

D&J PRECISION MACHINE 6.7 CUMMINS TOOL STEEL WRIST PINS

Product Description Complete set of 6. 6.7 Cummins Tool Steel Wrist Pins Specs of 6.7 Cummins Tool Steel Wrist Pins: 3.550″ length 1.575″ Outer Diameter, 0.437″ Wall...

D&J PRECISION MACHINE ANODIZED BILLET D&J PRECISION MACHINE CAP COVER

Our D&J Precision Machine Oil Cap Cover is one of the best ways to represent our brand. This is the same oil cap cover that is already included in our Billet Valve Cover items on our...

D&J PRECISION MACHINE ANODIZED BILLET STAINLESS DIESEL OIL CAP COVER

Using a Stainless Diesel oil cap cover is a great way to represent your diesel pride. Suit up your engine with an oil cap cover with a Stainless Diesel logo engraved...

D&J PRECISION MACHINE BILLET 5.9 CUMMINS GRID HEATER DELETE

Billet 5.9 Cummins Grid Heater Delete for 1998.5-2007 Dodge 5.9L Cummins Diesel. 6061 aluminum Get more airflow into your engine and avoid boost leaks. * Not recommended for cold climates. Truck...

D&J PRECISION MACHINE BILLET AIR SHUTOFF GUILLOTINE

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...

D&J PRECISION MACHINE BILLET AIR SHUTOFF GUILLOTINE & VELOCITY STACK

Billet Air Shut Off Guillotine with Velocity Stack for sled pulling applications. Dual internal spring design utilizing a 1/4 inch thick aluminum blade. It includes set screw or weld-on flange...