Best Engine Repair and Replacement in O'Fallon, MO

The highest-rated Engine Overhaul & Replacement companies out of 197 vetted & reviewed in the O'Fallon area.

Weldon Spring Automotive

Weldon Spring Automotive

(48)
Tire Pressure, Wheel Alignment, Fuel/Air Induction Clean-up
“They discovered the problem, made the corrections, and did not charge me for the unexpected work all while staying after hours in order for me to get my car back.”
Accepts All Major Credit Cards
Coupons & Offers
Licensed, BBB Rating: A+
Family Business
818 O'Fallon Rd, St Charles, MO
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Hillside Auto Repair

Hillside Auto Repair

(46)
000 Mile Warranty, We Back All of Our Work With a 2yr/ 24
“So rather then switching the plates just to switch them back again we decided just to renew them in our home area Las Vegas, but needed an Emissions Test.”
Accepts All Major Credit Cards
Coupons & Offers
Licensed, BBB Rating: A+
In Business Since 1988
400 Church St, O'Fallon, MO
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Sparks Tire & Auto

Sparks Tire & Auto

(46)
Vehicles
“Awesome staff, awesome service, Jessica, Greg, and Zan (I believe) were awesome - service-excellence, consultative, honest prices, and overall solid buying process.”
Accepts All Major Credit Cards
Offers Financing Options
Family Business
ASE Certified
1665 Scherer Pkwy, St Charles, MO
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Western Tire & Auto

Western Tire & Auto

(47)
Scheduled Maintenance & Tune Ups, Emission & Exhaust Systems, Auto Glass
“I didn't realize I needed an emissions test done for my renewal and most places were booked out a week, but they were so kind to tell me to come on in and they'd fit me in!”
Accepts All Major Credit Cards
Offers Financing Options
Family Business
Licensed, BBB Rating: A
668 Jungermann Rd, St Peters, MO
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Autos

Autos

(49)
Transmission and Clutch Repair, Oil and Filter Changes, Engine Repair
“I fancy myself a shade tree mechanic, but every time they touch one of our cars, I'm reminded how important it is to have real pros handle the serious stuff.”
Accepts All Major Credit Cards
Coupons & Offers
Licensed, BBB Accredited
In Business Since 1985
Serving O'Fallon Area
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Coffey Automotive

Coffey Automotive

(48)
  • Fair
  • Inspection
  • Diagnosis
“The shop was able get it removed in a timely manor and perform the other list of repairs I had and reinstall the part so the car could pass inspection.”
Accepts All Major Credit Cards
Offers Financing Options
Licensed, BBB Rating: A+
Coupons & Offers
2060 Exchange Dr, St Charles, MO
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Aamco Transmissions & Total Car Care

Aamco Transmissions & Total Car Care

(46)
Automatic Transmission Repair and Rebuilding, Automatic Transmission Fluid Service, Air Conditioning Services
“We took our daughters van to them with a verbal agreement of it needing a rebuilt transmission and presented him a cashiers check for the half of the quoted cost.”
Coupons & Offers
Locally Owned & Operated
Offers Financing Options
In Business Since 2012
3625 Harvester Rd, St Charles, MO
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Phalanx Performance LLC

Phalanx Performance LLC

(47)
  • Integrity
  • Questions
  • Community
“If ever comes a time where I need work done under the hood I will be bringing my car all the way up from Florida because I KNOW my ride will be in the right hands.”
Transparent Fees & Pricing
In Business Since 2018
1565 Cornerstone Dr Suite #104, St Charles, MO
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Arvin Auto Service

Arvin Auto Service

(47)
  • Honest
  • Diagnostic
  • Mechanic
“I have since had to return because my car wasn't starting and needed a starter replaced, and they fixed my car up good as new and were very nice and patient with my lack of car knowledge.”
Accepts All Major Credit Cards
Licensed, BBB Rating: A+
In Business Since 1989
Serving O'Fallon Area
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Madagascar Auto Dealership

Madagascar Auto Dealership

(45)
  • 2011
  • Chevy
  • Truck
“I've went through their business numerous times and each time I've had a phenomenal experience and couldn't be more thankful for the people who work there butts off at the establishment.”
Transparent Fees & Pricing
In Business Since 1992
2889 MO-94, St Charles, MO
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Bills Diesel Performance and Auto Repair

Bills Diesel Performance and Auto Repair

(39)
Napa Peace of Mind Warranty, Napa Autocare Center Benefits, Schedule A Repair
“Well Bill looked at it called me and said he saw an exaust leak well he fixed it he also suggested 3" down pipe and upgrade the up pipe and said it will be a different truck”
Coupons & Offers
Family Business
Offers Financing Options
In Business Since 2021
Serving O'Fallon Area
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Kar Tech

Kar Tech

(49)
  • Fair
  • Mechanic
  • Team
“I usually take my car in with a list of things that I think needs to be done and Randy and his team check all items out and then recommend what they think needs to be done.”
Family Business
In Business Since 1996
4600 Central School Rd, St Charles, MO
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Nocturnal Motorworks

Nocturnal Motorworks

(50)
  • Job
  • Mechanics
  • Fair
“Extremely friendly and answered every question I had and I got to watch the entire thing, something I've never been able to do at any other shop I've been to.”
In Business Since 2007
1427 N 4th St, St Charles, MO
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The Garage

The Garage

(49)
  • Job
  • Inspection
  • Vehicle
“If you've not had the pleasure of experiencing their outstanding service I highly recommend stopping in the next time you need something for your vehicle!”
In Business Since 1999
Serving O'Fallon Area
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Lunds Engine

Lunds Engine

(43)
  • GMC
  • Head
  • Work
“After the work was done, I did notice a little squeak in one of the pulleys after driving for a bit, so I mentioned to him and he had that fixed shy of 2 days.”
ASE Certified
In Business Since 1979
206 Clearview Dr, St Charles, MO
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Honest Affordable Auto Repair

Honest Affordable Auto Repair

(49)
  • Sound
  • Sunday
  • Name
“Like all good mechanics Joe tried the simple solutions first, spark plugs and ignition coils and when that failed started looking deeper and diagnosed a very serious compression problem in one of the cylinders.”
In Business Since 2017
570 St Peters Howell Rd, St Peters, MO
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LPS Motorwerks

LPS Motorwerks

(30)
  • Porsche Boxster
  • Cost
  • Vehicle
“They went through the car I purchased in detail and provided an assessment of what was needed vs what could be safely addressed later - no pressure and made sure all repairs were done with quality parts”
Coupons & Offers
In Business Since 2021
Serving O'Fallon Area
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Jason Walters Motorsports

Jason Walters Motorsports

(19)
Auto Maintenance, Auto Performance, Auto Repair
“I had my truck in with him last month and it was in and out in a few hours instead of a couple days that I would have been without it if I had taken it to the dealership for the same repairs.”
Family Business
Free Initial Consultation
In Business Since 2023
Serving O'Fallon Area
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Century Dodge Chrysler Jeep RAM Service Center

Century Dodge Chrysler Jeep RAM Service Center

(6)
  • Vehicle
“Bow has been keeping me updated on everything that we have been working on getting the car running smoothly and getting rid of all the problems that keep popping up.”
Coupons & Offers
Family Business
Offers Financing Options
In Business Since 2011
Serving O'Fallon Area
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CNC Automotive & Diesel Repair

CNC Automotive & Diesel Repair

(27)
  • Vehicles
  • Price
“Replaced my motor rebuilt my moms motor new or old makes no difference Casey and crew will take care of your problems very politely and on time Services Air & cabin filter replacement, General repairs & maintenance, Electrical, Auto engine diagnostic...”
Family Business
In Business Since 2020
Serving O'Fallon Area
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Waterson Motorsports

Waterson Motorsports

(23)
  • Price
  • Truck
  • Job
“Check them out you won't be disappointed Services Tires, Auto battery replacement, Auto A/C replacement, Auto battery maintenance, Auto maintenance, Battery, Service not listed”
3761 Mexico Rd, St Charles, MO
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RJB Truck & Auto Repair

RJB Truck & Auto Repair

(15)
  • Oil
  • Mechanics
“Prompt and courteous service.”
In Business Since 2022
Serving O'Fallon Area
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Cartech Automotive

Cartech Automotive

(20)
  • Vehicle
  • Mechanic
  • Price
“I have three high mileage cars that are in need of constant TLC, the guy I bought my Lexus from referred me to Anthony about 3 years ago and he's been on my speed dial ever since.”
Serving O'Fallon Area
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Precision Engine Rebuilders

Precision Engine Rebuilders

(13)
  • Bearings
  • Price
“Meaning it didn't get nasty all over my car (I always put cardboard down and bring plastic because most places make me carry it and its usually very dirty).”
Serving O'Fallon Area
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Engine Repair Services in O'Fallon, MO Cost Estimates

Minimum cost
$687
Maximum cost
$5151
National Average
$2061
Avg Per Hour Rates
$101
$1775
$2862
Typical price range is based on 441 cost profiles
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Average Cost $2061
Minimum cost $687
Maximum cost $5151
Avg Per Hour Rates $101

Typical range $1775 to $2862 is based on 441 cost profiles.

Why these companies made our list

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