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D&J PRECISION MACHINE

D&J PRECISION MACHINE

D&J PRECISION MACHINE

Diesel engines are renowned for their durability and power, making them a popular choice for heavy-duty vehicles. For those requiring diesel engine machining or a professional rebuild, there's a solution that combines expert precision with performance enhancement. Our services cater to enthusiasts and professionals alike, focusing on diesel performance parts that push the boundaries of what's possible. We specialize in custom diesel engines designed to meet specific needs, ensuring each engine component works seamlessly to deliver unmatched reliability and efficiency. Our team excels in diesel engine repair, utilizing high-performance diesel techniques and precision machine service that extend the life of your engine and optimize its power output. We understand the importance of regular diesel engine maintenance and provide comprehensive diesel engine kits that simplify this process. With performance diesel service, rebuilding a diesel engine enhances its capabilities and breathes new life into your vehicle. Investing in diesel performance upgrades is a strategic decision to enhance your vehicle's operation. Precision machining parts crafted with meticulous attention to detail ensure that every modification contributes to your engine's peak performance. Custom engine building is more than just an assembly of parts—it's a meticulous process that tailors your engine to your specific demands, whether it's for daily heavy-duty diesel repair or for high-adrenaline applications. As diesel technology advances, so does the need for competent diesel engine tuning to ensure your engine runs at its optimum. We are committed to delivering quality and performance with every project, taking diesel upgrade work seriously to surpass industry standards and client expectations. Trust us to take care of your heavy-duty engine with the respect it deserves, providing only top-tier diesel engine parts and services. Let's elevate your diesel experience to new heights with our state-of-the-art offerings.

 

If you’re looking for high quality and personal service, you’ve come to the right place. At D&J Precision Machine LLC, we’re about giving you the attention and personal service you’ll come to expect and enjoy.

We offer the best in services. At D&J Precision Machine, our goal is to make our customers satisfied with our expertise level of knowledge and service in the diesel performance industry. We build crate engines and cylinder heads, and those very same engines are in some of the fastest Cummins-powered diesel trucks in the nation. We will suit your needs from street to speed with attention to detail and precision to ensure your engine will perform to the best of its abilities.

Our rates are competitive, with no hidden fees. Our employees are friendly and will be there to help you every step of the way.

Let us put our experience to work for you.

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  • D&J PRECISION MACHINE CUMMINS BILLET TIMING COVER 2003+

    D&J PRECISION MACHINE CUMMINS BILLET TIMING COVER 2003+

    D&J PRECISON MACHINE

    $425.00
    CUMMINS BILLET TIMING COVER Our Cummins Billet Timing cover is machined in-house from 6061 aluminum. It is designed to use factory fan with stock dampener and belt without modification. Our Cummins billet timing cover kits come standard with stainless...
    $425.00
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    $425.00
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  • D&J PRECISION MACHINE CUMMINS OIL CAP COVER D&J PRECISION MACHINE CUMMINS OIL CAP COVER

    D&J PRECISION MACHINE CUMMINS OIL CAP COVER

    D&J PRECISON MACHINE

    $38.50
    Using a Cummins oil cap cover is a great way to represent Cummins pride. Suit up your engine with an oil cap cover with a Cummins logo engraved right on the top! You’ll catch all the eyes with it, and the best part is,...
    $38.50
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    $38.50
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  • D&J PRECISION MACHINE ANODIZED BILLET D&J PRECISION MACHINE CAP COVER D&J PRECISION MACHINE ANODIZED BILLET D&J PRECISION MACHINE CAP COVER

    D&J PRECISION MACHINE ANODIZED BILLET D&J PRECISION MACHINE CAP COVER

    D&J PRECISON MACHINE

    $38.50
    Our D&J Precision Machine Oil Cap Cover is one of the best ways to represent our brand. This is the same oil cap cover that is already included in our Billet Valve Cover items on our website. Suit up your engine with our oil cap cover...
    $38.50
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  • D&J PRECISION MACHINE ANODIZED BILLET STAINLESS DIESEL OIL CAP COVER

    D&J PRECISION MACHINE ANODIZED BILLET STAINLESS DIESEL OIL CAP COVER

    D&J PRECISON MACHINE

    $38.50
    Using a Stainless Diesel oil cap cover is a great way to represent your diesel pride. Suit up your engine with an oil cap cover with a Stainless Diesel logo engraved right on the top! You’ll catch all the eyes with it,...
    $38.50
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    $38.50
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  • D&J PRECISION MACHINE 03-05 DODGE CUMMINS BILLET VALVE COVER D&J PRECISION MACHINE 03-05 DODGE CUMMINS BILLET VALVE COVER

    D&J PRECISION MACHINE 03-05 DODGE CUMMINS BILLET VALVE COVER

    D&J PRECISON MACHINE

    $575.00
    We designed our 03-05 Cummins 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 aluminum,  and come...
    $575.00
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    $575.00
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  • D&J PRECISION MACHINE BILLET VALVE COVER 06 TO PRESENT YEAR DODGE CUMMINS D&J PRECISION MACHINE BILLET VALVE COVER 06 TO PRESENT YEAR DODGE CUMMINS

    D&J PRECISION MACHINE BILLET VALVE COVER 06 TO PRESENT YEAR DODGE CUMMINS

    D&J PRECISON MACHINE

    $575.00
    We designed this Cummins 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 aluminum,  and come with all...
    $575.00
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    $575.00
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  • D&J PRECISION MACHINE BILLET VALVE COVER 06 – PRESENT YEAR BLACK POWDER COAT D&J PRECISION MACHINE BILLET VALVE COVER 06 – PRESENT YEAR BLACK POWDER COAT

    D&J PRECISION MACHINE BILLET VALVE COVER 06 – PRESENT YEAR BLACK POWDER COAT

    D&J PRECISON MACHINE

    $698.00
    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 aluminum,  and come with all stainless steel...
    $698.00
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    $698.00
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  • D&J PRECISION MACHINE BILLET VALVE COVER 03-05 BLACK POWDER COAT D&J PRECISION MACHINE BILLET VALVE COVER 03-05 BLACK POWDER COAT

    D&J PRECISION MACHINE BILLET VALVE COVER 03-05 BLACK POWDER COAT

    D&J PRECISON MACHINE

    $698.00
    We designed our Billet Valve Cover 03-05 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 aluminum and come with all stainless steel...
    $698.00
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    $698.00
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  • D&J PRECISION MACHINE BILLET 5.9 CUMMINS GRID HEATER DELETE

    D&J PRECISION MACHINE BILLET 5.9 CUMMINS GRID HEATER DELETE

    D&J PRECISON MACHINE

    $60.00
    Billet 5.9 Cummins Grid Heater Delete for 1998.5-2007 Dodge 5.9L Cummins Diesel. 6061 aluminum Get more airflow into your engine and avoid boost leaks. * Not recommended for cold climates. Truck may or may not start without being plugged in below 20...
    $60.00
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    $60.00
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  • D&J PRECISION MACHINE 0.500″ TALLER BILLET 5.9 CUMMINS GRID HEATER DELETE

    D&J PRECISION MACHINE 0.500″ TALLER BILLET 5.9 CUMMINS GRID HEATER DELETE

    D&J PRECISON MACHINE

    $112.50
    0.500″ Taller Billet 5.9 Cummins Grid Heater Delete suited for 1998.5-2007 Dodge 5.9L Cummins Diesel. Extra clearance Billet aluminum Get more airflow into your engine and avoid boost leaks. * Not recommended for cold climates. Truck...
    $112.50
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    $112.50
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  • D&J PRECISION MACHINE 5.9 CUMMINS TOOL STEEL WRIST PINS D&J PRECISION MACHINE 5.9 CUMMINS TOOL STEEL WRIST PINS

    D&J PRECISION MACHINE 5.9 CUMMINS TOOL STEEL WRIST PINS

    D&J PRECISON MACHINE

    $440.00
    Our D&J Precision Machine branded 5.9 Cummins Tool Steel Wrist Pins come in a complete set of 6. Dimensions 3.250″ Length 1.575″ Outer Diameter, 0.330″ Wall  WARNING: Cancer and Reproductive Harm - www...
    $440.00
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    $440.00
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  • D&J PRECISION MACHINE 6.7 CUMMINS TOOL STEEL WRIST PINS D&J PRECISION MACHINE 6.7 CUMMINS TOOL STEEL WRIST PINS

    D&J PRECISION MACHINE 6.7 CUMMINS TOOL STEEL WRIST PINS

    D&J PRECISON MACHINE

    $440.00
    Product Description Complete set of 6. 6.7 Cummins Tool Steel Wrist Pins Specs of 6.7 Cummins Tool Steel Wrist Pins: 3.550″ length 1.575″ Outer Diameter, 0.437″ Wall  WARNING: Cancer and Reproductive Harm - www...
    $440.00
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    $440.00
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  • D&J PRECISION MACHINE CUMMINS BILLET SIDE FREEZE PLUG

    D&J PRECISION MACHINE CUMMINS BILLET SIDE FREEZE PLUG

    D&J PRECISON MACHINE

    $45.00
    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 have developed a design that uses a center bolt...
    $45.00
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  • D&J PRECISION MACHINE CUMMINS BILLET FRONT FREEZE PLUG KIT

    D&J PRECISION MACHINE CUMMINS BILLET FRONT FREEZE PLUG KIT

    D&J PRECISON MACHINE

    $45.00
    Introducing our newly designed Cummins Billet Front Freeze Plug that does not leak! Our billet front freeze plug is designed to be held in by a factory fan support. Included: 1 Front Billet Freeze Plug HD O-Ring WARNING: Cancer and...
    $45.00
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  • D&J PRECISION MACHINE CUMMINS BILLET FREEZE PLUG KIT

    D&J PRECISION MACHINE CUMMINS BILLET FREEZE PLUG KIT

    D&J PRECISON MACHINE

    $180.00
    Introducing our newly designed Cummins Freeze Plugs that do not leak! The newest design of our Billet Freeze Plugs kit do not require drilling and tapping of the block. To hold the freeze plug within the block, we developed a design that uses a center...
    $180.00
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    $180.00
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  • D&J PRECISION MACHINE CUMMINS BILLET REAR FREEZE PLUG 03+ D&J PRECISION MACHINE CUMMINS BILLET REAR FREEZE PLUG 03+

    D&J PRECISION MACHINE CUMMINS BILLET REAR FREEZE PLUG 03+

    D&J PRECISON MACHINE

    $74.00
    The Cummins common rail ’03-to-current billet rear freeze plug takes care of the common issues of high coolant pressure. It bolts in the back of the block. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
    $74.00
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    $74.00
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  • D&J PRECISION MACHINE BILLET AIR SHUTOFF GUILLOTINE

    D&J PRECISION MACHINE BILLET AIR SHUTOFF GUILLOTINE

    D&J PRECISON MACHINE

    $565.00
    Diesel engines need reliable components to ensure safety and performance, among which air flow regulation is critical. The D & J Diesel turbo guillotine stands as an exceptional choice for those seeking an effective air shut off guillotine solution...
    $565.00
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    $565.00
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  • D&J DJPDHSP115KIT | 115LB 24V CUMMINS VALVE SPRINGS | 98.5-2024 CUMMINS 24V D&J DJPDHSP115KIT | 115LB 24V CUMMINS VALVE SPRINGS | 98.5-2024 CUMMINS 24V

    D&J DJPDHSP115KIT | 115LB 24V CUMMINS VALVE SPRINGS | 98.5-2024 CUMMINS 24V

    D&J PRECISON MACHINE

    $380.00
    D&J 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,...
    $380.00
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    $380.00
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  • D&J PRECISION MACHINE 24V HEAVY DUTY 7/16″ .168 WALL PUSH TUBES D&J PRECISION MACHINE 24V HEAVY DUTY 7/16″ .168 WALL PUSH TUBES

    D&J PRECISION MACHINE 24V HEAVY DUTY 7/16″ .168 WALL PUSH TUBES

    D&J PRECISON MACHINE

    $313.20
    Our 7/16″ .168 wall push rods for 24V 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,...
    $313.20
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    $313.20
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  • D&J PRECISION MACHINE 24V CUMMINS TITANIUM RETAINERS D&J PRECISION MACHINE 24V CUMMINS TITANIUM RETAINERS

    D&J PRECISION MACHINE 24V CUMMINS TITANIUM RETAINERS

    D&J PRECISON MACHINE

    $368.00
    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 stock retainers. Our Cummins Titanium...
    $368.00
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    $368.00
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  • D&J PRECISION MACHINE BILLET TIMING COVER CR (03-18 CUMMINS)

    D&J PRECISION MACHINE BILLET TIMING COVER CR (03-18 CUMMINS)

    D&J PRECISON MACHINE

    $425.00
    CUMMINS BILLET TIMING COVER Our Cummins Billet Timing cover is machined in-house from 6061 aluminum. It is designed to use factory fan with stock dampener and belt without modification. Our Cummins billet timing cover kits come standard with stainless...
    $425.00
    Qty in Cart: 0
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    $425.00
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