Ray and Sons Auto Repair
“Reasonable and honest, unlike other auto repair shops I have dealt with.”
Best Engine Repair & Rebuild in Rialto, CA
15 technicians listed · 8 in Rialto · 9 open weekends · 14 rated 4.5+
Data verified October 16, 2026
Jack Diesel Repair
“Joel got me in and out fast, really appreciated that and girls in the office were very friendly.”
P & G Auto Parts & Machineshop
“He went above and beyond to rebuild the transmission on my Dodge Ram 1500 and kept me posted throughout the process!”
Manuel's Auto Repair
“Finding out my Toyota FJ Cruiser needed to have its timing chain components replaced was a bit stressful knowing the cost, labor, and experience required but Victor at Manuel's Auto Repair was very reassuring.”
Rialto C .G Electronic and Mechanic Repair
“This gem of a business offers a rare combination of top-notch service, affordable prices, and a team of genuinely honest and knowledgeable professionals.”
Gd Cylinder Head & Auto Repair
“Jose is the guy to go to, good quality work well recommended”
Listed for drivers in and around Rialto, CA, these 15 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
Area overview: Rialto, CA
8 of the 15 technicians we list are based in Rialto; the other 7 serve Rialto from towns including Fontana (4 mi), Riverside (12 mi) and Loma Linda (9 mi). The technicians on this page are rated from 4.2 to 4.9 across 2,439 reviews; 11 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "honest" and "warranty". 9 are open on Saturdays and 1 on Sundays. 4 have a BBB rating of A or A+. 8 have ten or more years of experience, the longest 40 years. 3 offer financing; 1 gives free estimates; 3 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for 10 of the technicians on this page; 8 publish a contact page; 2 list a public email and 2 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Do engine shops listed for Rialto let me spread the cost?
3 of the 15 shops on this page state that they offer financing. An engine is the repair people borrow for, so compare what the credit costs against what a different car would cost you, and get the repair quote in writing first.
Mobile Mechanic
“I cannot express how honest Pete is, he fixed my charger a while ago and it was great priced and perfect work.”
Nick Johnson Performance
“He's done more than I can list; trans replacements, tune ups, air suspension installation etc.”
Brake Masters
“They do a great job always get the warranty it will save you on the back end every time.”
Protrans Automotive & Transmission Specialists
“They gave me a quick update after inspection regarding what the issue was.”
Padilla Tire & Auto Repair
“Been going for years, owner Able is a stand up honest guy.”
Bolger Bros Auto Repair
“So far so good 4 wasn't good enough so I'll give u 6stars there doing a great job!”
Rapid Diesel Repair
“Great experience with them just found my new shop”
Prado's Quality Auto Repair and Smog
“I always bring my Audi whenever I have any type of problem wether a Drive shaft or a brake job and I can confidently say Prados is the best shop to get any kind or work done on any vehicle.”
S & S Inland Star Mercedes and BMW Specialist
“I would highly recommend S&S Inland Star to anyone in need of reliable and trustworthy service.”
Why these companies made our list
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