Do You Have A Problem? Let Us Help You Fix It.

About Us

We started up in 2013 with a love in Diesel and RV work. With this in mind we quickly worked our way up to where we are now, fully servicing all RV’s and Diesel Trucks. We are located in San Jacinto CA, and service people from all around Southern California.

Here at Alliance Diesel, we are here to help you with any automotive problems you might have. We have unique solutuions for our customers that minimize downtime and save you money over the long haul. We form an alliance with our clients, for a lasting business relationship.

From preventative maintenance programs for your truck or fleet of trucks, to custom maintenance schedules, Alliance Diesel will get you in compliance with BIT and Terminal Inspections for California Highway Patrol (CHP).

Expert Partners Agree

“Well I can’t say enough good things about the crew over here at Alliance Diesel and RV repair. Brought my truck in to do some modifications they installed a WC Fab EGR delete kit with Y bridge, up pipes turbo downpipe and an EFI live tune, and new Bosch fuel injectors among other miscellaneous stuff that should be done when you tear your motor apart that much. The owner Dave and everyone over there was easy to work with, they are definitely my go-to shop. Thanks again Alliance Diesel and RV repair.”

Brian Morell, Morell Electric

“Very good service and very reliable people”

Tony Elliot, Arizona Propane

“Thanks everyone at Alliance Diesel for your quick response road service call. I was stranded in the trench with heavy equipment failure and your personnel showed and worked in the trenches to resolve my situation getting me back on the job in time to finish same day..The professionalism demonstrated will warrant further calls when needed and have asked supervisory personnel to add Alliance as a preferred service provider, welcome aboard.”

Aaron Idle, Motion Repossessors

Trusted Partners

Here are just a few of the companies that we have or currently do work with frequently.