Protrans Automotive & Transmission Specialists
“Marc and Bruce checked all of my fluids and inspected the truck.”
Best Radiator Repair in Riverside, CA
22 technicians listed · all 22 in Riverside · 8 open weekends · 19 rated 4.5+ · 2 show a license
Data verified October 16, 2026
GT Pit Stop Automotive Services
“Brother had a stubborn check engine light on his ford ranger and they did all in their power to find the problem and fix it at a reasonable price.”
Burke's Automotive Repair
“He had me go there first and I'm glad he did because they found a tear in my tire and replacing it fixed my problem.”
Csai Auto Service
“As someone who doesn't know a ton about cars, they took the time to explain everything clearly and made the process simple.”
Porters Garage Inc.
“Great guys were more than happy to help me check my car that had been making a noise before I drove back to Phoenix.”
Auto Express
“I have taken him four german vehicles and one being a porsche.”
Listed for drivers in and around Riverside, CA, these 22 shops repair and replace radiators and cooling system parts. What each one says about recoring, warranties and truck work comes from its own website; ratings and quotes come from public reviews.
Area overview: Riverside, CA
All 22 technicians we list here are in Riverside itself. We have 33 technicians in Riverside on file; this page shows the highest-rated 22. The technicians on this page are rated from 4.3 to 5.0 across 2,593 reviews; 16 have 50 or more reviews and 19 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "diagnosis" and "honest". 8 are open on Saturdays. 2 show a license on their websites; 2 list staff certifications (ASE) and 10 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 72 years. 1 offers financing; 1 gives free estimates; 4 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for 12 of the technicians on this page; 9 publish a contact page; 1 lists a public email and 4 take bookings online. We count these figures across the technicians on this page; hours and prices change, so confirm the details with the technician before you visit.
Are the longer-established listed shops a safer bet?
16 of the 22 shops here have been trading ten years or more. Radiator work rewards that, since the places that still recore and pressure test in house tend to be long-established and often run commercial vehicle work alongside cars.
A & R Auto Service LLC
“I called around while they were working on the truck to make sure I was getting a good deal and I have to say their prices were extremely fair compared to other shops, the dealer was more than double!”
Ed Martin Garage
“They do what they say and when the work is done it perfect!!!”
Jurupa Radiator & Auto Repair
“Fixed radiator leak in a fast and timely manner on wife's Mustang!!!”
Top Dawg Auto Repair
“However, Top Dawg made a tremendous effort to keep my quote at around the same price, even though there were additional issues that were left off the initial quote (new tires and alignment).”
US Autocare
“They solved both problems in a reasonable amount of time and the most reasonable price for the labor and parts.”
Omni Auto Repair Inc
“They had fixed my wife's EVAP system in her 2002 Honda Odyssey fair price and great customer service would recommend them to anyone”
LTW Motorsport
“Russell genuinely cares about the work he does which means your gonna have the work done correctly the first time.”
Autotech Bar# Ard00206553
“I feel confident that they are looking out for my safety n keeping n g my car in top condition.”
Riverside Car Clinic
“Bruce is the best mechanic I have ever known ( even better than the one i married long time ago).”
Genuine Tech
“They are very reasonable compared to a dealership and will not try to get you to get work done that's not necessary.”
Vince's Auto Repair
“I recommend you guys to come to his shop when you guys need any maintenance done on your car, he has great service and prices.”
Jay's Auto Air & Heater Specialists
“Jay is very honest, he did my Suv, my husband's old worktruck, and we told our friends about him.”
Ace Auto Service
“I recently brought my BMW to Ace Auto Services in Riverside after a frustrating experience at the dealership, and I couldn't be more impressed with the care, honesty, and professionalism I received from Grace and Jeff.”
Adams Service Auto Repair
“Had a complicated issue clearing my Dodge trucks' intake manifold other places could not fix these guys kept at it until it cleared, all while working on other peoples cars.”
Big J's Auto Repair & Fleet Services
“She needed a specific gas cap from Chevy and they went and bought one for her so she didn't have to do it.”
Inland Auto Tech
“Very professional, and very honest in the prices, if I highly recommend them I give them 5 stars.”
Why these companies made our list
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