Best Engine Repair and Replacement in Thornton, CO
The highest-rated Engine Overhaul & Replacement companies out of 114 vetted & reviewed in the Thornton area.
Learn how we score.
Prominent finalists A-Z in Thornton
Advanced Transmission Center
Andersen’s Foreign Car Service
Arapahoe Collision & Mechanical LLC
Arvada Automotive Center
Avalon Motorsports
Colchin Automotive
Colorado Engine
Colorado Fleetworks Inc
Diesel Forward
Euro Motors Inc
Eurosport Automotive Repair
Fahrenheit Motors
German Motors
I&E Diesel Repairs
Loyalty’s Automotive
Marini Diesel Inc.
Pickering’s Auto Service
Russell Auto Service
S&R Powerstroke
Schroeder Truck Repair
Shaus Motorsports
Superior Engines
USA Performance Engines
Wesley Automotive
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I&E Diesel Repairs
(4)
“Experience with good price as well the cheapest in town they don't rip you off good people and they treat you very well if you find this company you are in luck”
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Schroeder Truck Repair
(12)
Company
“Every person that works here cares about the customers and the quality of work that rolls out the bay doors, we are a team here and want everyone that walks thru our doors to know we care about getting the job done in a timely manner and making sure ...”
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USA Performance Engines
(11)
“They are straightforward, lots of experience and they will help you as much as you let them.”
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Wesley Automotive
(28)
Engine Repair, Brake Repair, Transmission Repair
“I tried 4 other auto mechanics and even though my appointment was only going to take 15-20 minutes, everyone else wanted me to wait a week or declined to help.”
i
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Fahrenheit Motors
(9)
Mechanic
Audi
VW
“I repeat anyone who has a Audi or VW this is your go to shop on the north end of denver..”
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Arvada Automotive Center
(30)
Oil Change, Brake Repair, Tire and Alignment
“When I first arrived, Noone looked at me and said, with out saying, why in the he'll are you coming up in here, you N, I didn't receive that, kind of welcoming.”
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Pickering's Auto Service
(24)
Periodic Services, Vehicles, Fluid Services
“They did a 60,000 recommended maintenance on my 2016 Ford Fiesta, as well as replace a leaky valve cover gasket, and service/adjust my brakes, and emergency brake.”
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Colorado Fleetworks Inc
(30)
Engine Swaps & Rebuilds, Custom van Builds, Sprinter van Repair
“They got her in on a same-day appointment, worked after hours, and ended up scavenging a part from one of their own vans as they didn't have the part on hand.”
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Euro Motors Inc
(29)
Job
BMW
Price
“He isn't the type of person who is looking to make a quick buck and overcharge you, but instead is very reasonable, takes the time to explain things to you and cares about his Customers.”
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Colchin Automotive
(29)
Mechanic
Professional
Honest
“Not only did they diagnose it quickly and free of charge, but they ordered special oil to try to prolong its life as we can't afford to replace it now.”
i
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Colorado Engine
(29)
Transmissions, Parts, Fleet Maintenance
“I had Colorado Engine put a new engine, rack and pinion, catalytic converter, O2 sensors and a few other small things in my 2001 Dodge truck in 2020 and all I can say is...”
“I'm a former technician, and have seen all of the classic misogynist "mechanic" behavior before, but not here: She asked questions, they answered, explained and gave her helpful tips.”
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Avalon Motorsports
(29)
Diagnosis
Communication
Work
“Very helpful and fast service.”
i
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Arapahoe Collision & Mechanical LLC
(27)
Business
Family
Price
“Even with some surprises during the jobs, they contacted me with several options prior to initiating the work, and ultimately I was pleased with their advice.”
i
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Eurosport Automotive Repair
(29)
Porsche
Professional
Honest
“After explaining our situation to Eurosport Automotive Repair, they squeezed us in first thing at 8am, diagnosed the problem, and had it solved by 2:30pm to keep us on our way.”
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German Motors
(15)
Certification, Equipment, Service A and B
“It's always been pleasure with their excellent service, genuine & transparent discussion with ZERO exploitation.”
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Shaus Motorsports
(27)
Auto Repairs
“While everyone else in town couldn't help us until Wednesday, Chris and Aaron at Shaus Motorsports got us fixed up and back on the road in about 4 hours total.”
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Superior Engines
(28)
Rebuilt, Replacement and Recycled Cylinder Heads, Rebuilt and Recycled transmissions, Rebuilt, Crate, Custom and Recycled engines
“They've taken such amazing care of us and his truck they've kept us up to date the entire way and Scott has gone above and beyond to make sure everything is running smooth and properly.”
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Russell Auto Service
(29)
Preventive Maintenance, Napa Peace of Mind Warranty, Brake Repair
“They provided the list, did not attempt any repairs without permission, told me exactly what to look out for to know when each part would need repairs, AND weather they thought each repair was worth it (my car is not the newest or the nicest).”
i
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Andersen's Foreign Car Service
(27)
Diesel Fuel
“We were stuck, brakes leaking while traveling through to Colorado, Jim fit us in, repaired the leaking cylinder and got us in our way in under 2 hours!”
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S&R Powerstroke
(29)
f350
Prices
Diagnose
“This fall my water pump failed and Sonny suggested it was time for the ARP headstuds and new headgaskets along with other things while in there (245k on the engine).”
i
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Marini Diesel Inc.
(24)
Cummins
Mechanics
Job
“They are definitely the best, honest, professional, with all the knowledge needed for any type of truck, don't waste your time going anywhere else, they'll always service your truck the right way.”
i
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Loyalty's Automotive
(19)
Family
Prices
“They allowed me to turn down certain services and were open about whether some were absolutely necessary or just recommended while they have it on the lift.”
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Diesel Forward
(18)
Injector
Business
Price
“After searching the web for a few days looking for a replacement turbo for my duramax and finding outrageous prices online I came across diesel forward and I'm truly impressed with the staff and service.”
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Engine Repair Services in Thornton, CO Cost Estimates