Engines and installation is our specialty and has been for over 30 years. We have the best prices in the industry, and superior sourcing to get you the engine you need, at the price you deserve. From oil changes to complete drive train replacement, our expert and friendly service provides you with quality auto repair. Free diagnosis, towing services available.

The best maintenance for your fleet vehicles is preventative maintenance. Find out why so many Metro Denver area fleets trust Colorado Engine for all their auto repair shop needs.

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About Us Report

Colorado Engine is one of the Denver area's largest independent crate engine and transmission warehouse and installation center. Founded in 1983, we have matured as a company to become THE area engine experts. We have high quality products, a huge inventory, the quick delivery and core pick-up and some of the most professional and cordial service in the Denver engine sales and installation business. We stock and install all types of import and domestic automotive and marine engines including gas, cng and diesel.

Diesel Engines Report

Colorado Engine specializes in the repair, maintenance and installation of precision remanufactured diesel engines for Ford Powerstroke, Chevrolet and GMC Duramax, and Dodge Cummins. All complete engines (longblocks) come with 1yr unlimited mile warranty All running complete engines (fully accessorized) come with 2 yr unlimited mile warranty.

Parts Listings Report

We Proudly use only the best parts in the business. Below is a listing of the brands we use most frequently. If you are looking for a brand that is not listed, please contact us, and we'll almost certainly be able to help.

Transmissions Report

We have a full line of factory remanufactured automatic transmissions with a 3 year, unlimited mile national warranty. Due to our high volume of engine and transmission installations, we have an advanced degree of experience in replacing transmissions. All of our transmissions are built with a complete system correction to address and upgrade all known OE flaws.

Kimberly Encinias

Jun 15, 2022

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Great service and friendly staff! I had gotten a less than satisfactory engine swap and CO Engine replaced and have had no problems since. The wait and slightly higher cost is well worth the results.

Ellie Abney

Jun 12, 2022

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Colorado Engine is top tier when it comes to mechanics. Everyone in the shop is always so friendly and helpful, and I love that they take the time to explain to me what is going on with my vehicle. This will definitely be my new place to go to in the future for any repairs or basic maintenance! Thank you Colorado Engine! : Services: Auto glass replacement, Steering & suspension repair, Brakes, Oil change

Debbie Martinez

May 13, 2022

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This company was referred to me by a friend. They are knowledgeable, did a great job on my repairs, timely maner. They also checked other things and informed me. I will be taking my vehicles to them for repairs. Services: General repairs & maintenance, Auto engine diagnostic

Ted Garcia

May 09, 2022

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I had ColoradoEngine 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. Tony, Terry and the entire staff is Fantastic! They are friendly, knowledgable and for me most importantly they have great customer service. I highly recommend them for all your automobile needs!

Drew Juinta

Feb 22, 2022

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Great experience. Had to do an engine swap and new clutch on my Dodge 2500. Friendly service and knowledgeable staff. Great communication and timely service. Definitely will be returning for any future work for my truck. Services: Transmission, Engine repair

Ian K.

Feb 06, 2022

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These guys are absolutely great, they are very patient, professional. They did an awesome job replacing the engine in my Jeep Grand Cherokee. Their staff are very friendly and easy to talk to. I would probably not go anywhere else in the Denver area for an engine after working with them.

Deslie Hamersky

Dec 04, 2021

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Love the people at Colorado Engine! They were professional, timely, and honest. Loved the ease of making the appointment, getting the reminder texts, and being able to pay right from the text thread on my phone! What more could you want from a car repair shop?! Won't go to anyone else. Services: Brakes, Air & cabin filter replacement, Oil change

Heyzeus Chris

Jul 10, 2021

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Came in for a quote on service based on reccomendations from Malaise Motors Facebook group. George and Terry were great at instilling confidence in their ability to do the work needed on my car. Great customer service, I will update this review after the service is done and let the work reflect my rating. So far so good.

Jb Woods

Jan 22, 2021

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I brought my car to Co Engine after blowing my engine due to a tune up gone wrong (my fault!) I waited to review this business to allow time (9 months) and miles on the used engine to see if it was a lemon. Somewhat concerned with a used harvested engine. But, just completed trip to east coast. Engine was driven 48 hours straight for 3,000 miles. No problems.

Engine runs extremely well. Strong and smooth. Valvetrain is clean. Bottom end appeared new. Ran diagnostics after engine was installed. These guys have a good source for used engines and know how to install them.

Colorado Engine District