// The Story
L&D Performance Diesel.
Built for the L5P.
Our focus is high quality parts and services, backed by dependable customer support. L&D Diesel LLC is a North Carolina shop — every kit gets welded, fitted, and run hard in our own trucks before it ever ships in yours.
Our parts line fits 2017–2026 Chevy Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD with the 6.6L Duramax L5P. 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.