D&J Precision Machine Brand

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D&J Precision Machine • Diesel Performance Machining & Manufacturing The EXECUTIONER - D&J Precision Machine Featured Catalog New Products Crate Engines Cylinder Heads Custom Pistons Billet Rods Apparel Services D&J HP Reman Engines!
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D&J Precision | 2006-2018 Dodge Ram Cummins Black Powder Coat Billet Valve Cover
$699.99
$699.99
We designed the 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 from aircraft quality 6061-T6 al...
D&J Precision | 2007.5-2018 Dodge Ram 6.7L Cummins Stage 1 Performance Reman Head
$2,999.99
$2,999.99
Our Stage 1 24v Cummins Performance Head is a step up in performance without the extra expense and work involved with an aftermarket intake.  Our Stage 1 Cummins Performance Head includes everythin...
D&J Precision | 24V Cummins 115LB Valve Springs
$389.99
$389.99
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 | 24V Cummins Titanium Retainers
$369.99
$369.99
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 the...
D&J Precision | Cummins Billet Side Freeze Plug
$54.99
$54.99
Introducing our newly designed Cummins Billet Side Freeze Plug that does not leak! The newest side freeze plug design that we have created does not require drilling and tapping of the block! We hav...
D&J Precision | 1989-1998 Dodge Ram 5.9L 12V Cummins Push Rods 7/16 .168 Wall
$314.99
$314.99
D&J builds their Cummins pushrods for 12V engines feature a 7/16 .168 wall tube for strength and rigidity. NOTE: Does NOT Fit 1998.5 24V Engines.