Alliance Diesel Truck , RV and Trailer repair - San Jacinto, California

Lily Bell Bernal-Mercado

The guys at Alliance are TOP NOTCH! DERICK and ANTHONY stayed late to do my Brakes and Oil Change, as a CURTISY! Shop is well stocked and Maintained with Tools and Equipment to do the job RIGHT! You will be greeted with Professionalism. Thank you my Dudes.

brian morrell

Brought my 07 Duramax in cause transmission was slipping, ended up being coolant lines, they got me taken care of in a timely manner price was fair and everyone over there was awesome. When I picked my truck up I met the owner Dave, very knowledgeable guy. Will be bringing my truck back for for future work.

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.

Justin Hobgood

They worked on my 1974 Ford F-150 with an '86 6.9L IDI. The engine hadn't seen maintenance in a long time. The staff did a phenomenal job and definitely took good care of me and the truck. Thank you!

ElksLodge 2591

Dave and the guys are the very best! Knowledgeable and thorough. We burned up our brakes coming down the mountain…. Dave and the guys took great care of our RV right away. After diagnosing the problem they called us right away with our options and pricing. Pricing I will add was very fair! Once the plan was agreed to, they got to work and knocked it out in just a few days…. The only delays were waiting for parts from the dealer. They shared pictures of everything they found and did throughout the process. Very impressed! I highly recommend Alliance to everyone! Thank you Alliance Diesel for taking such great care of us.

Deanna Fischermann

We needed two chassis and six house batteries. Alliance Diesel was recommended to us. We were not disappointed! Will took such good care of us. He answered the phone, gave us prices, immediately ordered the batteries and got us in immediately. We had Caleb and Kyle work on the installation and they were very knowledgeable and also personable and kind.
PS..Will also interns from the local high school to help out! We thought that was pretty awesome.
Thank you Alliance Diesel!

Doug-Laurie Rafferty

I can’t even put into words how fair and what an amazing job Kyle the mechanic did in finding my coolant leak and than repairing it. And Kyle’s dispatcher or manager Will was just as awesome to work with. He kept me informed as the job progressed and told it to me straight.
We all know owning a diesel pusher motor home is not cheap and many services providers could easily over charge you or demand you bring the vehicle into their location. Not Alliance Will created a trust with me and knew I had to leave in a few day, so he went out of his way to get a mechanic out TO me, NOT me to him.

I highly recommend Alliance Diesel and the next time I’m in this area, I will schedule my annual maintenance and safety check with them.

Thank you Will and Kyle
God Bless you both

Adam McShane

Great service and communication, they ordered my part and and had me back on the road quickly

Dan Howes

Absolutely, best shop and team around! We travel full time with a truck and camper and were in need of a full service as well as have our transmission looked because of some concerning noises. Thank you to the team at Alliance Diesel for going out of there way to make sure we were in good running order to make it home to Canada. They also allowed us to spend a few nights in our camper at the shop while getting repairs done. If you are in an RV, Motorhome or any big rig. These guys are the go to shop in the area! Thank you, see you next year!