Watsonville Diesel Parts & Service - Watsonville (CA)

5 /5 NorCal Knockouts: This place saved me. I was stranded in my Mercedes van 7hrs from home and Watsonville diesel came through. Francesca is the absolute sweetest, even contacted me after hours to make sure I was okay and really went the extra mile to make sure I got back on the road safely. A+ work A+ shop. Please check them out!

5 /5 Fae Gershenson: Five stars isn’t enough. Our family has been planning this bus-based vacation for a year. The day before our familys huge trip that we planned for a year, the fridge broke. With 100 ° heat on the menu for the week long trip, the refrigerator quitting was a trip killer. We limped into the shop without an appointment, expecting a long wait, our trip to be cancelled, and a big bill. Instead, the crew jumped on it right away, stayed past 8 p.m., and kept us in the loop the whole time. By morning they’d found the only workable fix: pull the entire windshield, widen the opening, and slide a new fridge straight through the front of the bus. Wild, but they handled every step: sourcing the unit, coordinating glass removal, custom-cutting the frame, reinstalling the windshield, and cleaning up so our children wouldn’t step on a rogue metal shaving. The new fridge is running cold, the windshield is sealed tight, and our trip is back on track. They didn’t just repair a rig; they saved a long-awaited family adventure. If you need a shop that says “yes” and figures out the hard parts later, go here.

5 /5 Betty Plante: We had a suspension problem on our RV and we were stuck on the side of the road. Called many RV repair shop, no one could do anything for us. One of them told me to try Watson diesel parts and service. Best decision I made to call them! Even if they were already all booked, they found a solution to help us and Luis us, working overtime and he made the repair on the spot. The conditions were far from ideal (dark and rainy). They’ve been awesome! A special thanks to Johny too, who has been very kind!

1 /5 Doug Miller: We had a break down on my 2002 F250 7.3 diesel on the way from Southern California to a family reunion at the KOA campground near this shop. Had our 5th wheel towed to the campground and had the truck towed to Watsonville Diesel. Truck sat for the weekend at their shop. Went to the shop Monday and spoke with the owner. I voiced my concerns about what I believed to be the issue with the truck more than once, clogged filters in the fuel tank. He explained to me that the fuel pump had failed and assured me that the repair would solve our problem. Being that we so far from home and up against a reservation timeline in Morro Bay. I paid him $1235.00 for a $130 fuel pump and left.We left the next morning after hooking up our 5th wheel and headed to Morro Bay. After about 80 miles into our 100 mile trip the exact thing happened. The truck quit running just as it had before on the initial break down. My first call was to the shop that "repaired" my truck and told them of my break down. Receptionist took a message and I never got a return call. Went to the auto parts store and purchased another fuel pump. Installed it in a grocery store parking lot and left to continue the remainder of our trip. 10 minutes and 5 or 6 miles down the road the same thing happened again, except this time on a hilly windy two lane road. I was barely able to get it into an emergency turn off and worked on a solution to my fuel problem. Sent my wife in her car to buy fuel cans and 15 gallons of diesel and some 3/8" fuel line. Ran the fuel lines from the fuel pump to the gas cans in the bed of the truck bypassing the trucks fuel tank. Turned the key and the truck fired up and ran fair the rest of the journey to our campsite. The next morning, I removed the fuel tank in my campsite from the truck and removed the fuel pickup from the tank and disassembled. Guess what I found, two in the tank filter/ strainers more than 100% clogged. Cleaned the strainers with some brake cleaner and reinstalled the fuel tank. We left the next morning to return home. Truck ran less than perfect 300 miles home although without incident. To my dismay the continued fuel starvation over the course of our trip to Morro caused the fuel injectors to incur damage. The repair bill will be around $3000 because a "diesel mechanic" didnt know how to diagnose a fuel system problem. Several phone calls and texts have gone unanswered. I got a response after I threatened a lawsuit. They blamed the fuel pump not the inaccurate diagnoses. This business owner does not need to be in business and not leaving me any alternative than to take him to court. He needs to return my money for the initial repair and pay for my injectors due to his missed diagnoses. LESS THAN ONE STAR!!!!!!!!!!!!!!!!!!!! I fixed it myself! See you in court! Update. 8/1/2025 Receptionist contacted me with an offer to refund the charges for the initial repair if I would remove my review from Google. I said not unless you repair my vehicle for the thousands of dollars worth of damage caused by your faulty repair. She said she would text me the owners number so it could be discussed. Never heard from her. I guess we are still going to court. Please stay far away from these people. Most reviews are good. But if they make a mistake they wont make it right.