Commercial Truck Repair in Yuba City

“Best guys in town! As another local business in town, it is great to have a trustworthy and honest shop for our needs. They are quick, courteous and reliable. Thanks team!“

“Awesome service. First time owning a diesel they were great took time with me on the phone to see exactly what I wanted my 12v to do and said "we got you, Bring it up and we'll get you set up".I'll never need to go anywhere else with my cummins ????????????????“

“Went Harmonic Diesel after the dealer charged me $600 to tell me I might need a new turbo and NOx sensor and was not sure if that will fix the problem. Got my truck out of there and call Salvador. He diagnosed the turbo being bad as soon as the hood was open. He explained that it was starting to blow oil back into the input and demonstrated how you can easily tell. Cause was leaking seals. Then plugged into the trucks computer and sure enough the NOx sensor showed bad. Less than five minuets. Had him do a lot of other work and he completed it in three days. Cost for all the work was just about what the dealer was going to charge me for a turbo and NOx sensor. Salvador is honest, hard working and knowledgeable. His prices are very fair. Worked performed was a new Garett turbo, OEM NOx sensor, change transfer case fluid, change oil and filter, change transmission fluid and filter, air filter and cabin filter, new brake fluid, change out the OEM fuel filter for a .5 micron CAT filter, and drain and change the coolant.“