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Brand: D&J Precision Machine
Part Number: DJPCNC1000xx
Introducing D&J's in-house designed 03-05 Cummins billet valve cover, balancing fit, finish, functionality, and budget.
Superior Construction
Material: Made from aircraft-quality 6061-T6 aluminum for exceptional durability and strength.
Fasteners: Comes with all stainless steel ..
$579.99
Brand: D&J Precision Machine
Part Number: DJPCH100008x
5.9 CR HP Reman Cylinder Head: Upgrade your truck's performance and reliability with D&J's 5.9 CR Performance Cummins Reman Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's 5.9 CR Performance Cummins Reman Head includes essential up..
$2,099.99
Brand: D&J Precision Machine
Part Number: DJPCH100026x
5.9 CR Stage 1 Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's 5.9 CR Stage 1 Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
Our 5.9 CR Stage 1 Cummins Performance Head is a step up ..
$2,999.99
Brand: D&J Precision Machine
Part Number: DJPCH100031x
Stage 2 5.9 CR Cummins Performance Head: Upgrade your truck's performance and reliability with our Stage 2 5.9 CR Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
Our Stage 2 5.9 CR Cummins Performance Head is designed for the..
$5,399.99
Brand: D&J Precision Machine
Part Number: DJPCNC100167
Cummins Billet Timing Cover
D&J's Cummins Billet Timing Cover is expertly machined in-house from high-quality 6061 aluminum, ensuring durability and precision. This cover is designed for easy installation, allowing you to use the factory fan with the stock dampener and belt without any modifica..
$439.99
PDP Pick
Brand: D&J Precision Machine
Part Number: DJPCNC1000XX
Looking for one of the best valve cover on the market for your Cummins? Then look no further than D&J Precision machine
Their Cummins Billet Valve Cover for 2006 to present year models is meticulously designed in-house to achieve the perfect balance of fit, finish, and functionality, all whil..
$579.99
Brand: D&J Precision Machine
Part Number: DJPLB100019x
Heavy Hauler 6.7 Cummins Long Block: Upgrade to D&J's Heavy Hauler 6.7 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Heavy Hauler 6.7 ..
$12,124.99
Brand: D&J Precision Machine
Part Number: DJPCH100039x
6.7 CR HP Reman Cummins Cylinder Head: Upgrade your truck's performance and reliability with D&J's 6.7 CR HP Reman Cylinder Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's 6.7 CR HP Reman Cylinder Head includes essential upgrades t..
$2,099.99
Brand: D&J Precision Machine
Part Number: DJPLB100042x
D&J Precision Machine Performance Series 6.7 Cummins Long Block: Upgrade to D&J Precision Machine Performance Series 6.7 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummin..
$18,999.99
Brand: D&J Precision Machine
Part Number: DJPLB100018x
6.7 Common Rail Cummins Precision Plus Reman Long Block: Upgrade to D&J Precision Machine 6.7 Common Rail Cummins Precision Plus Reman Long Block for unparalleled performance and reliability for your Cummins engine. D&J Precision Machine is the gold standard in the Cummins performa..
$9,174.99
Brand: D&J Precision Machine
Part Number: DJPCH100046x
6.7 CR Stage 1 Cummins Performance Head: Upgrade your truck's performance and reliability with our 6.7 CR Stage 1 Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
Our 6.7 CR Stage 1 Cummins Performance Head is a step up in per..
$2,999.99
Brand: D&J Precision Machine
Part Number: DJPCH100051
Stage 2 6.7 CR Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's Stage 2 6.7 CR Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Stage 2 6.7 CR Cummins Performance Head is desi..
$5,399.99
Brand: D&J Precision Machine
Part Number: DJPLB100020x
D&J Precision Machine Street Performance 6.7 Cummins Long Block: Upgrade to D&J Precision Machine Street Performance 6.7 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummin..
$15,499.99
-6 %
Brand: D&J Precision Machine
Part Number: DJPCH100056x
Stage 3 6.7L Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's Stage 3 6.7L Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Stage 3 Cummins Performance Head is designed for ex..
$6,649.99 $7,099.99
Brand: D&J Precision Machine
Part Number: DJPCNC100225
The Strongest Billet Cummins Rods On The Market: Upgrade to D&J X-BEAM Billet Cummins Rods for the ultimate in strength and reliability for your high-performance Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
Proven to handle over..
$3,749.99
Brand: D&J Precision Machine
Part Number: DJPCNC100235
The Strongest Billet Cummins Rods On The Market: Upgrade to D&J X-BEAM Billet Cummins Rods for the ultimate in strength and reliability for your high-performance Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J stock length ..
$3,399.99
Brand: D&J Precision Machine
Part Number: DJPCH100074x
12v HP Reman Cylinder Head: Experience the superior reliability and performance of D&J's expertly remanufactured 12v Performance Cummins Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's 12v Performance Cummins Reman Head is engineer..
$1,699.99
Brand: D&J Precision Machine
Part Number: DJPCH100095x
Stage 2 VP44 Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's Stage 2 VP44 Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Stage 2 VP44 Cummins Performance Head is designed f..
$5,399.99
Brand: D&J Precision Machine
Part Number: DJPCH100064x
VP44 24v HP Reman Cylinder Head: Upgrade your truck's performance and reliability with D&J's VP44 24v Performance Cummins Reman Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's VP44 24v Performance Cummins Reman Head includes essent..
$2,199.99
Brand: D&J Precision Machine
Part Number: DJPCH100067x
ISB Stage 1 24v Cummins Performance Head: Experience the next level of performance with our ISB Stage 1 24v Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
Elevate your engine's performance with our ISB Stage 1 24v Cummins Perform..
$2,999.99
Brand: D&J Precision Machine
Part Number: DJPCH100095x
Stage 2 P-Pump Cummins Performance Head: Upgrade your truck's performance and reliability with D&J's Stage 2 P-Pump Cummins Performance Head. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Stage 2 P-Pump Cummins Performance Head is desi..
$5,399.99
Brand: D&J Precision Machine
Part Number: DJPLB100015x
Heavy Hauler 5.9 Cummins Long Block: Upgrade to D&J's Heavy Hauler 5.9 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
D&J's Heavy Hauler 5.9 Cummi..
$12,124.99
Brand: D&J Precision Machine
Part Number: DJPLB100017x
D&J Precision Machine Performance Series 5.9 Cummins Long Block: Upgrade to D&J Precision Machine Performance Series 5.9 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummin..
$18,999.99
Brand: D&J Precision Machine
Part Number: DJPLB100014x
5.9 Common Rail Cummins Precision Plus Reman Long Block: Upgrade to D&J Precision Machine 5.9 Common Rail Cummins Precision Plus Reman Long Block for unparalleled performance and reliability for your Cummins engine. D&J Precision Machine is the gold standard in the Cummins performa..
$9,174.99
Brand: D&J Precision Machine
Part Number: DJPLB100012x
D&J Precision Machine Street Performance 5.9 Cummins Long Block: Upgrade to D&J Precision Machine Street Performance 5.9 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummin..
$15,499.99
Brand: D&J Precision Machine
Part Number: DJPCNC100006x
Billet Stage 2 Intake Manifold: Upgrade to D&J's Billet Stage 2 Intake Manifold for a reliable and performance-oriented solution for your 5.9 or 6.7 Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
The Billet Stage 2 Intake Manifold is s..
$1,049.99
Brand: D&J Precision Machine
Part Number: DJP100001KIT
Cummins 24v Heavy Duty 7/16" .168 Wall Push Rods: Upgrade to D&J's Cummins 24v Heavy Duty 7/16" .168 Wall Push Rods for superior strength, reliability, and performance in your Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
..
$314.99
Brand: D&J Precision Machine
Part Number: DJP100002KIT
Our 7/16″ .168 wall push rods for 12V engines have the advantage of strength and rigidity. They have been proven to 3000+ HP and are still good for your daily driven truck.
Specs of Push Rods:
7/16” diameter
.168 wall, factory length
Part N..
$314.99
Brand: D&J Precision Machine
Part Number: DJPCNC100297
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 genuine Cummins v-bands.
THE BILLET AIR SHUT OFF GUILLOTINE WITH VELOCITY STACK INCLUDES:
..
$799.00
Brand: D&J Precision Machine
Part Number: DJPCNC100216
D&J Precision Machine Cummins Titanium Retainers: Upgrade to D&J Precision Machine Cummins Titanium Retainers for enhanced performance and reliability in your high-powered Cummins engine. D&J Precision Machine is the gold standard in the Cummins performance industry.
Designe..
$369.99
Brand: D&J Precision Machine
Part Number: DJPCNC100273
If you're in need of a shut-off for your competition vehicle check out this option from D&J.
D&J's Billet Air Shut-Off Guillotine is designed for high-performance applications, providing reliable performance, durability, and enhanced safety. Featuring a dual internal spring de..
$574.99
Brand: D&J Precision Machine
Part Number: DJPCNC100274
If you're in need of a shut-off for your competition vehicle check out this option from D&J.
D&J's Billet Air Shut-Off Guillotine is designed for high-performance applications, providing reliable performance, durability, and enhanced safety. Featuring a dual internal spring de..
$574.99
Brand: D&J Precision Machine
Part Number: DJPCNC100267
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 genuine Cummins v-bands.
THE BILLET AIR SHUT OFF GUILLOTINE WITH VELOCITY STACK INCLUDES:
..
$799.00
Brand: D&J Precision Machine
Part Number: DJ-CH-12HP
Discontinued: (5/10/2024)
D&J 89-98 12v Cummins Performance Head STAGE 1
Our Stage 1 12v 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 everything in our&nb..
$0.00
Brand: D&J Precision Machine
Part Number: DJPDHSP115KIT
Discontinued (Updated 2/14/2025)
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 springs we included standard on our Stage 1, Stage 2, Stage 3 a..
$0.00
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