L&D Performance Diesel.
Built for the L5P.
L&D Diesel LLC is a North Carolina shop that started the way most of them do — fixing the same factory failures over and over. We got tired of replacing parts that were never going to hold up, so we started building our own. Every kit gets welded, fitted, and run hard in our own trucks before it ever ships in yours. The parts we sell are built for the 6.6L Duramax L5P (2017 and newer Chevy and GMC HD trucks); the custom fab, tuning, and repair side of the shop is open to any diesel.
Built Right
Over-engineered for daily-driven diesels. USA-made hardware, automotive-grade seals, no compromises.
Road Tested
Every part runs on our own trucks first — loaded, hot, and worked. If it can't take it, it doesn't ship.
L5P Focused
Our parts line is 6.6L Duramax L5P, inside and out. In the bay we'll take on any diesel — fab, tuning, or repair.
The Manifesto
- 01Function before fashion. If a part is pretty but weak, it doesn't ship.
- 02No fake reviews. No fake scarcity. No fake anything.
- 03Lifetime warranty on steel. Period.
- 04Customer service answered by humans who actually wrench.
- 05If we wouldn't bolt it to our own rig, we won't sell it to yours.