CR 5.9 Cummins (03-04) Engine Parts

Replaces the original plastic transducer with a more rugged, reliable and durable metal unit that can handle higher transmission line pressures wit...

The coolant pressure inside the engine block can reach 70+psi at high rpm before the thermostat fully opens. This will cause a corroded frost plug ...

XDP Model XD512The XDP Wrinkle Black HD High Output Alternator XD512 is designed to improve the charging system in your 2003-2007 Dodge 5.9L Cummin...

XDP Model XD3010HSUpgrade your 1998.5-2023 Dodge Ram 5.9L/6.7L Diesel with the XDP X220 Series Head Stud Kit XD3010HS. Upgrading the OEM head bolts...

XDP Model XD339 Don't let a blown freeze plug cause your 2003-2018 Dodge 5.9L and 6.7L Cummins to overheat, fix the issue before it happens with t...

XDP Model XD313Control the valvetrain in your 1998.5-2022 Dodge 5.9L & 6.7L Cummins with the XDP 24V Performance Valve Springs & Retainer K...

The Firepunk Cummins Deck Shield is designed to protect your short block’s deck surface when the cylinder head is removed. Whether you're waiting o...

Firepunk Billet Alternator Mount. These work for all CR Cummins motors as well as Deck Plate Motors. 

D&J 5.9 Common Rail HP Reman Block At D&J Precision Machine, we understand the value of providing our customers with the option to rebuild ...

  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...

Stage 2 5.9 CR Cummins Performance Head Our Stage 2 5.9 CR Cummins Performance Head is designed for the performance enthusiast. It includes everyth...

  5.9 CR HP Reman Cylinder Head   Our 5.9 CR Performance Cummins Reman Head includes essential upgrades to ensure durability and reliability, addre...

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

Performance Series 5.9 CR Block At D&J Precision Machine, we understand the value of providing our customers with the option to rebuild their o...

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...

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...

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

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

  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 2007-2007 5.9 Common Rail. Includes head gasket, exhaust manifold gaskets, long intake g...

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

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...

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

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...