Young's Auto Repair
“They have repaired stuff that other mechanics had a chance to repair but just didn't do it right.”
Best Engine Repair & Rebuild in Harlingen, TX
14 technicians listed · 11 in Harlingen · 5 open weekends · 9 rated 4.5+
Data verified October 16, 2026
Paisano Diesel Repair
“They showed up right on time, were very professional and quickly fixed the issue!”
Ace Auto & Engine
“This shop took on a difficult job for us on a Mercedes that no one else wanted to touch - and did it for a fair price too.”
Maldonado Automotive Repair
“And just so you know I had 3 mechanics and all 3 can't compare to Maldonados services.”
Wb&c Motor Techs
“I took it to WB&c motor techs and in 2 hours they had my car going I highly recommend this place if you want your vehicle going.”
El Torito Diesel Repair
“Hands down good mechanics in and out fast sometimes there is a wait line but where isn't there 10/10 recommend 0 complaints”
Listed for drivers in and around Harlingen, TX, these 14 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: Harlingen, TX
11 of the 14 technicians we list are based in Harlingen; the other 3 serve Harlingen from San Benito (6 mi) and La Feria (11 mi). The technicians on this page are rated from 3.9 to 5.0 across 284 reviews; 1 has 50 or more reviews and 9 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price" and "honest". 5 are open on Saturdays. 3 have ten or more years of experience, the longest 32 years. 1 is family- or locally-owned. We have a website on file for 2 of the technicians on this page; 2 publish a contact page and 1 lists 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?
11 of the 14 shops are in Harlingen itself and the rest come from other towns within 15 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
Popeyes Automotive
“He is kind and does a good job, I took care of the problem.”
United Diesel and Lift Service
“One cylinder was very problematic but they hung with it and were able to combat the rust so they could get it repaired as well.”
Untamed Diesel Performance
“Roy and his crew converted it to a cp3 fuel pump.”
508 Motors and Service
“I will definitely be going there for any other Automotive needs I have”
F & N Auto A/C Specialists
“Have had both my vehicles serviced by Flavio and never had a problem with his work.”
Flacos Alternators and Starters
“He showed exactly at what time he offered and was able to fix my alternator in 2 hours!”
Solis Engine Parts
“Honest and reliable gets the job done and it's very inexpensive for a good job”
Generation Diesel & Tire Shop
Why these companies made our list
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