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Our Wildwood, FL techs will confirm the right part for your build before you buy.
Call or Text (352) 722-5295About D&J Precision Machine
D&J Precision Machine is a diesel engine builder and machine shop. The company built its name on Cummins work: remanufactured long blocks and short blocks, reman and Stage 1 performance cylinder heads, and billet parts it machines in-house at its own facility in the United States. D&J assembles its engines in a clean room, and each one runs through the shop's in-house engine test equipment before it ships. When a 5.9L or 6.7L Cummins needs a head or a complete long block, this is a brand our techs trust.
What we carry
- Remanufactured cylinder heads for 2003-2007 5.9L, 2007.5-2018 6.7L and 2019-2024 6.7L Cummins
- Stage 1 performance cylinder heads, with fire-ring options for high-cylinder-pressure builds
- Essential long block crate engines for 2004.5-2007 5.9L and 2007.5-2018 6.7L Cummins
- Precision Plus long block crate engines, fully assembled with the oil pan and front timing cover
- Billet tool-steel rocker arm valve bridge sets for 1998.5-2018 5.9L and 6.7L Cummins
Long blocks carry a core charge. D&J inspects the returned core, and it has to be rebuildable to earn the credit.
Shop D&J Precision Machine by engine
Not sure it fits? Use the Fits-your-truck checker on any product page, or text your VIN to (352) 722-5295 and a tech at our Wildwood, FL shop will confirm it.