Ideal Auto Body Services
“The owner Josef came out and took his time to walk me through the process.”
Best Engine Repair & Rebuild in El Monte, CA
15 technicians listed · 9 in El Monte · 9 open weekends · 12 rated 4.5+
Data verified November 11, 2026
JMS Racing Engines
“Having a lifetime of knowledge passed down through three generations of family owned business, makes all the difference in the world.”
G4 Collision Center
“I would highly recommend G4 Collision Center to anyone looking for quality collision repairs, professional service, and a team that truly takes pride in what they do”
United Diesel Service Inc
“The team was knowledgeable, efficient, and went above and beyond to ensure everything was running smoothly.”
Durfee Auto Transmissions
“Man you have no idea how much you saved me and all the work you did was amazing.”
Davila's Auto Repair
“Juan the mechanic is honest & will advice you what part(s) needs to be replaced & you can buy it & have him installed in your car plus labor is very reasonable.”
Listed for drivers in and around El Monte, 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: El Monte, CA
9 of the 15 technicians we list are based in El Monte; the other 6 serve El Monte from towns including South El Monte (2 mi), Monrovia (5 mi) and Monterey Park (6 mi). The technicians on this page are rated from 3.5 to 5.0 across 1,458 reviews; 6 have 50 or more reviews and 12 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "fair" and "honest". 8 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 69 years. 1 gives free estimates and 1 lists coupons or special offers. We have a website on file for 7 of the technicians on this page; 4 publish a contact page; 5 list a public email and 1 takes 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.
Why do some listings show another city?
9 of the 15 shops are in El Monte 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.
Durfee Auto Service
“Definitely recommend this place they are fast and very professional Roberto was great help and nice he got my oil change done in 10 min and very great prices for tuning up your vehicle I found my new mechanic”
Autorepair GT
“It is an excellent service, something recommended, very friendly, excellent work 😍🤩😎 …”
Roque's Auto Repair Shop
B&R Diesel Services
“Would definitely recommend using them in an emergency situation or when you just need some repairs.”
Lubianmechanicservices
A's Garage
“I usually do my own maintenance and repairs but when it comes to the difficult jobs I can't do myself I always take my e46 here.”
Luxury Motorworks
“He also made sure to follow up with me two days after my car was picked up, which demonstrates his genuine care and interest in building relationships as a business owner.”
R & N Complete Auto Repair
“From potential what might be the problem, to breaking it down to only one issue, fixing the issue, and how much longer I had to wait each time.”
Hye Tech Auto Repair
“John, the owner takes the time to know his customers and has you feeling like a friend quickly.”
Why these companies made our list
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