ProSource Diesel, Fairfield CA

Excellent service and fast shipping. Had everything I needed in stock! I did not initially receive tracking info for an item that was drop shipped from the manufacturer. Customer service quickly provided the information when I called.

ONLY COMPANY IVE FOUND THAT HAD THE FACTORY REPLACEMENT PART THAT I NEEDED FOR THE 97 OBS THAT I WAS WORKING ON. ORDERED PART AND RECIEVED 2 DAYS LATER. EASY SITE TO NAVIGATE AND SHIPPING WAS FAST AND EASY.

ProSource Diesel had the fuel rail pressure sensor in stock & shipped quickly. The price was excellent! Because of the quality of the part I'm going to be purchasing parts when I need from ProSource. Highly recommend this company! Updates & tracking was on point as well. Thank you!
Derek D.

Bought some head studs from prosource diesel. The item arrived quick, but didn't have the required assembly lube. Not a big deal. I emailed them and called them (left a message) and received NO response. It's only a few dollars. They could have refunded a few dollars or just had some sent to me.

I'm not mad about forgetting something small. I'm annoyed about being ignored. It shows they only care when they make a sale. Due to that, I will never do business with this company again.

Edit: They did respond later on and take care of it. I probably over reacted at the time. Still iffy about the company, but they did offer some solutions.

Evry time i need diesel parts they're the first place i go and haven't let me down yet!

Great product, quick shipping, got what I needed. Had I user error and they helped me figure it out.

Would order parts from here every time. Shipped fast, protected and working perfectly on the truck. Prices are competitive, and parts are usually in stock here.

I order most of my 6.0 parts from Prosource Diesel, from gaskets to sensors they work great

Fast and great people to deal with, have ordered a few times now, have had one order where I had placed a order for x2 components and they hadn’t got both put in the box, called them about it and I had the part the next day.

After looking everywhere across a few towns I was able to find the part I needed, for less, here on Prosource Diesel. They received and shipped my order in a timely manner. Very happy with my experience and will likely shop with them again!

I had a real good experience, I called and the phone rep helped me decide what part I needed and it came two days later! Good stuff

Every good business to work with, they had the exact parts I needed. The parts was delivered in a timely manner.

The up pipes came over in amazing shape. Solid welds and fitment across the board. Parts were difficult to install, but the fit and finish of these pipes made it possible even with the tight space available in the OBS 7.3.
Product would have received a 5-star, but I was missing some hardware, and the hardware that was with the kit wouldn’t thread together. ProSource Diesel quickly remedied this with a hardware kit and we got it all wrapped up in a weekend.

Great product and great fit. Would buy again.

ProSource was very prompt with my orders, I ended up ordering stuff then the next day ordering more and they were quick to ship both out together.