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D&J Precision Machine Brand

58 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.

Regular price $1,133.00
Sale price $1,133.00
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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 6...
Regular price $4,533.00
Sale price $4,533.00
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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...
Regular price $792.00
Sale price $792.00
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D&J Precision Machine manufactures our tool steel wrist pins in-house at our facility in the United States, using the highest quality materials. Leveraging years of experience in high-performan...
Regular price $821.00
Sale price $821.00
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The all-new Billet Cummins Breather Cover is engineered in-house to deliver an optimal balance of form, finish, and function - without inflating cost. Precision-machined from aerospace-grade billet...
Regular price $648.00
Sale price $648.00
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The all-new Billet Cummins Breather Cover is engineered in-house to deliver an optimal balance of form, finish, and function - without inflating cost. Precision-machined from aerospace-grade billet...
Regular price $575.00
Sale price $575.00
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These billet bridges are precision-machined components engineered to significantly increase rigidity in the most critical areas of your valvetrain. Compared to stock components, they are approximat...