Fullerton Auto Repair Clinic & Body Shop
“Excellent customer service professional repair work at a great price this is a go to shop cause its all about honesty”
Best Engine Repair & Rebuild in Fullerton, CA
15 technicians listed · 14 in Fullerton · 8 open weekends · 13 rated 4.5+
Data verified October 16, 2026
Baughman & Turner Automotive
“Mark's schedule was full but heard my story fully for the need of my geting back on the road ASAP.”
Fisk Automotive
“Most importantly, did a comprehensive evaluation of my car and gave me a full picture of what was going on before I decided on repairs.”
Discount Transmission & Auto Care
“They diagnosed the issue quickly, kept me informed, and didn't try to upsell unnecessary repairs.”
Chief Mobile Mechanic
“Ali responded quickly and showed up within an hour to run a diagnostic on my car and check my battery.”
Orange County Fleet Services
“Took my school bus to OCFS for maintenance and repairs and everything was taken care of in a timely manner.”
Listed for drivers in and around Fullerton, 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: Fullerton, CA
14 of the 15 technicians we list are based in Fullerton; the other one serves Fullerton from Anaheim (5 mi). The technicians on this page are rated from 4.3 to 5.0 across 1,677 reviews; 6 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", "diagnosis" and "estimates". 8 are open on Saturdays and 2 on Sundays. 2 list staff certifications (ASE) and 4 have a BBB rating of A or A+. Domain records put 3 websites of the technicians on this page at ten or more years old; the oldest dates from 2008. 2 give free estimates; 3 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 10 of the technicians on this page; 4 publish a contact page and 4 list a public email. 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.
Why do some listings show another city?
14 of the 15 shops are in Fullerton itself and the rest come from other towns within 10 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
Orange County Tires
“From finding/fixing a leak in my tire to installing my tpms sensors, they got it done with excellence, speed and no overselling/add on pitches.”
Sal's Auto Service
“This is my go-to spot for any of my car needs, which are a lot as I drive a piece of plastic.”
S&K Auto Repair
“Honest and efficient even checked in on me to make sure everything was working fine the next day”
Westerfield Motor Sports
Tecnicar Auto Service
“Eric got me up on the rack, found the problem, ran out, got the part, worked some magic, and had my vehicle purring like a kitten in less than and hour.”
JMO
“If you want quality work on your Japanese brand vehicles this is the place to go.”
Fullerton Diesel Electric
“Best spot to go hands down they welcome you like they've known you for years and the prices are very reasonable”
Wholesale Engine and Auto Repair
“They treat their costumers with respect and really professional when it comes to their work”
Stress-Free Auto Care
“There was no pressure to do unnecessary work and they helped us reach the best possible outcome, which was an engine replacement completely covered by warranty.”
Why these companies made our list
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