Best Engine Repair & Rebuild in San Marcos, TX
10 technicians listed · 4 in San Marcos · 1 open 24/7 · 5 open weekends · 7 rated 4.5+
Data verified October 16, 2026
B & M Automotive
Larson's Automotive
Texas Diesel Injection
Ellison's Discount Auto Repair
Red's Truck & Trailer Repair LLC
Listed for drivers in and around San Marcos, TX, these 10 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: San Marcos, TX
4 of the 10 technicians we list are based in San Marcos; the other 6 serve San Marcos from San Antonio (45 mi). The technicians on this page are rated from 4.0 to 5.0 across 1,147 reviews; 7 have 50 or more reviews and 7 are rated 4.5 or higher. 1 is open around the clock; 5 are open on Saturdays and 1 on Sundays. 1 lists staff certifications (ASE). 5 have ten or more years of experience, the longest 41 years. 1 offers emergency or roadside call-outs; 1 offers financing; 2 give free estimates; 1 is family- or locally-owned and 2 list coupons or special offers. We have a website on file for 6 of the technicians on this page; 5 publish a contact page; 1 lists 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?
4 of the 10 shops are in San Marcos itself and the rest come from other towns within 50 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.


