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Best Auto Repair, Riverside
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Diesel Engine Repair

 243 Verified Review(s)

Hardworking or just hard at play, Protrans Automotive & Transmission Specialists services diesel trucks and jeeps from manufacturers such as GM, Chevy, Dodge, Ford and more. We also specialize in diesel engine repair for DuroMax, Power Stroke and Cummins.

Popular Brands We Repair and Service

  • DuroMax
  • Cummins
  • Power Stroke

Cooling and Lubrication Systems
Avoid high-cost diesel engine repairs down the road with regular maintenance for your diesel engine's cooling system. Maintaining an effective cooling and lubrication in high performance Duromax, Power Stroke and Cummins diesel engines is the key to adding life to glow plugs, injectors, and turbos. Call 951-367-7400 today!

Glow Plug Replacement
Is your glow plug failing to ignite fuel from your fuel injector? Your truck or jeep depends on its glow plug in all types of weather and road conditions to create the heat and electrical resistance needed to start your engine. Come to Protrans Automotive & Transmission Specialists to replace a failing glow plug and get your truck or jeep cranking again. We offer the right glow plug for Duromax, Power Stroke Cummins diesel engines including DieselRX, NGK and more!

Injectors and Turbos
Since 1992, Protrans Automotive & Transmission Specialists is Riverside's best diesel repair shop. We repair worn-out high-performance injectors and turbos in GM, Chevy, Dodge and Ford trucks that create unwanted noise or blow exhaust. A failing injector can cause poor fuel economy, glow plug issues, and sluggish performance that can affect your truck or jeep on and off road.

Jeep and Truck Diesel Exhaust Repair
For any diesel truck or jeep your exhaust system consists of one or more critical pipes that directs exhaust gases away from the internal combustion engine and out into the air. Your exhaust system can be modified to increase engine performance, modify muffler sound, or reduce pollution. To get the most from your diesel GM, Chevy, Dodge or Ford truck or Jeep, you need regular maintenance on your exhaust system. For exhaust repairs to pass an emission test or for mods and upgrades, call 951-367-7400 or visit Protrans Automotive & Transmission Specialists today at 3420 Gato Ct, Riverside, CA, 92507.

Choose Protrans Automotive & Transmission Specialists For Your Truck's Next Diesel Service

Read our reviews and see for yourself that we provide the best, most convenient diesel engine services near you at affordable prices. Come into our repair shop in Riverside today and experience the unmatched expertise of our pro diesel mechanics. Our 5-star reviews make us one of the most recommended diesel repair shops in Riverside!

Discover More About Engine Repair Services At Protrans Automotive & Transmission Specialists in Riverside

4X4 Services
Domestic Car Repair
Undercar Services: Maintenance


what our customers say

Where do i start.. Wednesday afternoon 3pm before Thanksgiving on way home to Phoenix, car goes into limp mode, got referred to Protrans. Called them they agreed to take a look. Diagnosed, parts ordered and Throttle Body replaced and road tested. So very excited to know that there are still Honest shops out there that actually care about their clients. Highly recommend Protrans.
J
, 11/28/2022

Very friendly! They checked our car and gave us professional recommendations for free! Will surely go back to them when next oil change needed.
Y
, 11/19/2022

Went in for transmission repair, after diagnosing the problem they told me I didn't need a full rebuild saving me well over $1,000.00. They found some safety issues I wasn't aware of and I had them take care of all of them. The truck is running great! Thank you Protrans.
R
, 11/18/2022

Professional, clean, courteous, helpful and reasonable.
K
, 11/09/2022

Jeff, Matt and Hayley and the team at Protrans did an incredible job and went above and beyond for us. We had a one of a kind, 1970 Ford Chinook Motor Home that made it down to Joshua Tree from Homer Alaska. It sat during the pandemic and we finally rescued her almost 3 years later. She did not deal with the transition to desert life smoothly and was leaking badly and ran terribly. We had her towed to Riverside and found Protrans from a referral from another shop. The team at Protrans rebuilt the transmission and went through the engine to get us back on the road without breaking our budget. Jeff was good about communicating and Matt even drove over the day after we picked it up to help assess some issues that came up on the way home. Can't say enough about the professionalism, care, and service we received and would recommend them to anyone for all car repairs!
J
, 10/18/2022

Customer service is excellent! Job was completed promptly. Price was reasonable. They were honest and courteous. I would definitely use their services again, and I highly recommend them.
G
, 10/03/2022

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