D&J Precision Heads and Engine Parts


Black Anodized Valve Cover (2006+) Black Anodized Valve Cover (2006+) Sold Out

Black Anodized Valve Cover (2006+)

D&J designed this Cummins billet valve cover in house for the best balance of fit, finish, and f..

$567.79

D&J Precision Machine Performance Reman Head

D&J Precision Machine Performance Reman Head

Our Cummins Reman Head has all the necessary upgrades to make your head durable and reliable.Yo..

$1,499.00

D&J Precision Machine X-BEAM Stock Length Billet Cummins Rods D&J Precision Machine X-BEAM Stock Length Billet Cummins Rods

D&J Precision Machine X-BEAM Stock Length Billet Cummins Rods

The Strongest Billet Cummins Rods On The MarketProven over 3000hp and 4000tq our X-BEAM Bi..

$3,084.85

D&J Precision Machine Stage 3 Cylinder Head

D&J Precision Machine Stage 3 Cylinder Head

Our Stage 3 Cummins Performance Head is designed for the extreme high performance.  I..

$6,411.75

D&J Precision Machine Stage 2 Cylinder Head

D&J Precision Machine Stage 2 Cylinder Head

Our Stage 2 Cummins Performance Head is designed for the performance enthusiast.  Includes..

$4,892.50

D&J Precision Machine Stage 1 Cylinder Head D&J Precision Machine Stage 1 Cylinder Head

D&J Precision Machine Stage 1 Cylinder Head

Our Stage 1 Cummins Performance Head is a step up in performance without the extra expense and ..

$2,626.50

D&J Billet Valve Cover Dodge Cummins D&J Billet Valve Cover Dodge Cummins

D&J Billet Valve Cover Dodge Cummins

D&J designed this Cummins billet valve cover in house for the best balance of fit, finish, and f..

$487.60

D&J Precision Cummins Billet Timing Cover

D&J Precision Cummins Billet Timing Cover

Machined in house from 6061 aluminum. Our Cummins billet timing cover is designed to use factor..

$386.00

D&J 115lb 24v Cummins Valve Springs

D&J 115lb 24v Cummins Valve Springs

D&J Precision Machine HD 115lb 24v Cummins Valve Springs have been proven with years of testing...

$360.50

D&J 24v Cummins Titanium Retainers

D&J 24v Cummins Titanium Retainers

Cummins Titanium Retainers for 1998 and up 24v Cummins cylinder heads. Out titanium retainers a..

$334.75

D&J Precision Machine 24v Heavy Duty 7/16″ Cummins Push Rods D&J Precision Machine 24v Heavy Duty 7/16″ Cummins Push Rods

D&J Precision Machine 24v Heavy Duty 7/16″ Cummins Push Rods

One-piece Cummins push rods for 24V engines. Produced from 4130 chrome molybdenum and heat treated t..

$286.60

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