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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.

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D&J Precision | 24V Cummins 105LB Valve Springs
$474.00
$474.00
Our 105lb 24v Cummins Valve Springs have been proven with years of testing.  *Spring retainers not included.
$174.00 Off Sold Out
D&J Precision | 2003-2005 Dodge Ram 5.9L Cummins Custom LED Billet Valve Cover
$1,569.00
$1,569.00
$1,743.00
Custom LED Cummins Billet Valve Cover fits 2003-2005 Cummins. Unlike the other billet valve covers on the market we designed our Custom LED Cummins Billet Valve Cover with function first. We design...
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D&J Precision | 1989-1998 Dodge Ram 5.9L 12V Cummins Push Rods 7/16 .168 Wall
$458.00
$458.00
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.
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D&J Precision | Billet Air Kill & Velocity Stack 5.5 Inch OD Cover
$1,162.00
$1,162.00
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 and ...
D&J Precision | Billet Stage 2 6.7L CR Cummins Intake Manifolds
$1,601.00
$1,601.00
The Billet Stage 2 Intake Manifold is designed for our Stage 2 cylinder heads. These intakes utilize the stock intake horn locations and fuel setups.  It comes with all the mounting hardware needed...
D&J PRECISION | 2007.5-2018 DODGE RAM 6.7 CUMMINS PERFORMANCE SERIES BLOCK
$5,794.00
$5,794.00
D&J Precision Machine understands value, and that some of our customers may enjoy rebuilding their own engines. With that in mind, we present a budget-friendly alternative to our full in-house...