Brake Masters
“Norberto, the mechanic that worked on my car, was very friendly as well and did a fantastic job.”
Best Engine Repair & Rebuild in Fontana, CA
18 technicians listed · all 18 in Fontana · 13 open weekends · 13 rated 4.5+
Data verified October 16, 2026
Padilla Tire
“Whenever I need to replace my tires, this is the I think of first.”
Bolger Bros Auto Repair
“Converted to disc brakes and the upper and lower control arm and bushings replaced in my 1967 Buick Skylark .”
Diesel Injection Service
“Took my 2011 f350 for some major repairs,Anthony was more than helpful walking me through all repairs and keeping me updated throughout the repair process .”
Diesel Camshaft Repair
“I brought the camshaft to be repaired and very good service and very good attention and very good prices, also economical because I recommend this workshop 100 percent 👍🏿 …”
Rodriguez Auto Mobile Mechanic Repair Shop Electric
“We have had him work on my two cars many times, every single time he has been polite and professional!”
Listed for drivers in and around Fontana, CA, these 18 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: Fontana, CA
All 18 technicians we list here are in Fontana itself. The technicians on this page are rated from 4.0 to 5.0 across 1,448 reviews; 8 have 50 or more reviews and 13 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". 13 are open on Saturdays and 2 on Sundays. 1 has a BBB rating of A or A+. Domain records put 2 websites of the technicians on this page at ten or more years old; the oldest dates from 2010. 2 offer financing; 1 gives free estimates; 1 is 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; 4 list a public email and 3 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.
Do engine shops listed for Fontana let me spread the cost?
2 of the 18 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.
Route 66 Automotive
“Very good mechanic got my truck running took it to another mechanic all he did was charge me is 660$ but route 66 Automotive got it going thanks fellas..”
Team GMD Truck & Trailer Repair
“Excellent service, I had a problem with my truck and they solved it immediately, very professional”
24 Hours Mobile Diesel Truck Mechanic
“These guys came out in 30mins and got my truck started in 1hr”
IND Diesel Injection
“I've been working with this company for over eight years one of the best reputable injector and turbo shop in Fontana they also have air dryer's air dryer filters and anything you need for the truck as well as compressors They have the best rates in Fontana and if the product happened to fail they stand behind the product and give you a new one on the Spot”
RV & Motorhome Repair Center
M & C Diesel Road Service
“Great place fair prices really nice guys have work done really quick”
Sergios Used Engines & Auto Repair
“Shop i recommend people to bring in there car for any type of service 1000% …”
Jr's Auto Lab
“Been nothing but profecionalism with his work straight down to the point no runing around on serious mechanical work got fuel pump done matter of minutes on my vehicle top notch quality of work”
United Diesel Repair Llc.
“They get the job done, been coming here for years.”
High Tech Machine Shop
“Awesome place for Diesel great customer service very reliable company ,,đź‘Ťđź‘Ťđź‘Ť …”
Legacy Truck Radiator
“Very satisfied with the price they gave me and they delivered to me with a one year warranty!”
T&B Unlimited Incorporated
“Great, professional service, with the patience to explain in depth what was being repaired.”
Why these companies made our list
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