Santa Rosa's Top Engine Rebuilding Service
Tristar Automotive provides expert engine diagnostics, servicing, and replacements to vehicle owners across Santa Rosa and Sonoma County.
Why Choose Us for Engine Work?
Engine Diagnostics & Performance Tuning
Tristar Automotive identifies issues like misfires, low compression, or sensor failures using advanced diagnostic tools. Clear reporting and repair recommendations help owners in Santa Rosa and Sonoma County understand what’s needed to restore peak performance while avoiding unnecessary expense.
Engine Repairs & Reconditioning
From gasket replacements to rebuilding, we repair components to OEM standards. This extends engine longevity and prevents future damage. Whether you’ve got a daily commuter or classic vehicle, our repairs keep drivers across the North Bay road-ready.
Complete Engine Replacement
We install Jasper remanufactured engines that meet OEM specifications and include transferable warranty coverage. This turns major engine failure into a long-term investment, offering peace of mind and reliable performance across Sonoma County.
Trust JASPER Remanufactured
3 Year/100,000 Mile Nationwide Warranty!
- A JASPER remanufactured product adds years of life to your vehicle!
- Quality and reliability at a fraction of the cost for a new or newer used car!
- NO monthly car payment means MORE MONEY FOR YOU!
- JASPER remanufactured gas engines are built to meet or exceed original equipment manufacturer measured tolerances.
- 3 year/100,000 mile nationwide, transferable parts and labor warranty on most applications.
Learn more at Jasper Engines or contact Tristar Automotive today!
4.9verified by TrustindexTrustindex verifies that the company has a review score above 4.5, based on reviews collected on Google over the past 12 months, qualifying it to receive the Top Rated Certificate.
More Automotive Services
Be sure to read more about how our Factory Scheduled Maintenance services can save you money. And, be sure to view our complete line-up of Automotive Repair and Services available at Tristar Automotive in Santa Rosa, CA!
Why Santa Rosa Drivers Rely on Us for Engine Service
ASE certification, award-winning customer service, and BAR licensing make Tristar Automotive the trusted choice for engine diagnostics and replacements in the North Bay.
Posted on Google![]()
Robert-Connie Mullan15 October 2026Trustindex verifies that the original source of the review is Google.
needed a certificate for DMV. Charged shop rate for three hours for service I suspect took mich less time.Posted on Google![]()
craig alness4 October 2026Trustindex verifies that the original source of the review is Google.
Great service, quality work, reasonable prices. I bring my grandma's 1972 Chevelle in every year and trust this team to take good care of this very special car.Posted on Google![]()
K Beau29 September 2026Trustindex verifies that the original source of the review is Google.
Wonderful experience all the way around. Did a diagnostic on my older Lexus and provided a detailed report of all its foibles and best way to proceed. From initial phone call to picking up car after, truly an exceptional experience. Thank you!!Posted on Google![]()
Michael Voight27 September 2026Trustindex verifies that the original source of the review is Google.
Easy to tow in car. Called me and asked what the issue seemed to be and fixed the problem. They pushed an oil change and air filter change but was quite a bit overpriced. Over $300 for both. I understand they need to make money but be wary of that. Otherwise they did good and fast work.Posted on Google![]()
Pat Pointer18 September 2026Trustindex verifies that the original source of the review is Google.
Had a great experience and felt well informed about my F-150 EcoBoost repair options for a coolant leak that caused the engine to overheat. I wasn’t feeling my best while facing the consequences of my truck requiring major repairs. The detailed estimate broke down every cost, from clips and hoses to labor, so there were no surprises. My questions were welcomed, and they took the time to explain what to expect. The staff and management were friendly, knowledgeable, and genuinely helpful. I especially appreciated the straightforward, low-pressure approach compared with some of my past dealership experiences. Highly recommend!Posted on Google![]()
shannon stegner11 September 2026Trustindex verifies that the original source of the review is Google.
I had to tow my vehicle into Tristar at 4pm the Friday before a holiday weekend. I was stranded in the side of the road and didn’t know who to call so, after a brief google search, I called Tristar. They let me know I’d could have my car towed over and it could stay over the long weekend but that they’d get back to me with an update as quickly as possible upon return from the holiday. As promised they did get back to me and let me know that the situation with my car was something that was actually covered by the maker of my vehicle via a class action lawsuit / extended warranty fix (my car is 1.5 yrs out of manufacture warranty). They told me to go ahead and make an appt with a local dealership and let me know exactly what to ask for re: this extended warranty. Additionally, they didn’t charge me for the diagnostic time it took them to identify the situation. I’m incredibly appreciative of their responsiveness and honesty in a moment that was very unexpected and stressful. They absolutely have my business from here out!Posted on Google![]()
Harold Duncan29 August 2026Trustindex verifies that the original source of the review is Google.
Very efficient and professional work…Staff is very kind and friendly as well…l had a Smog check…Posted on Google![]()
James Fitzgerald22 August 2026Trustindex verifies that the original source of the review is Google.
Great service and communication, thank you Team TriStar! Reliable and always stand behind their work and dedication, delivered with kindness and customer satisfaction!Posted on Google![]()
julie berman19 August 2026Trustindex verifies that the original source of the review is Google.
Left the dealership where I purchased my car and became a new customer of TriStar. They could not have been nicer, and their fees were very reasonable. Color me very pleased with my overall experience.Posted on Google![]()
H P Mechanical14 August 2026Trustindex verifies that the original source of the review is Google.
We have used tri star for many years, for service for our service fleet. We have found them to be honest, fair, efficient and they always keep you in the loop of your repair.Posted on Google![]()
Mark Jones29 July 2026Trustindex verifies that the original source of the review is Google.
There good and fast!Posted on Google![]()
Stephen Riedel28 July 2026Trustindex verifies that the original source of the review is Google.
I have had a couple recent repairs here including the catalytic converter and brake booster on my ‘98 Tacoma. I’ve been impressed by how responsive, timely, knowledgeable and professional the shop owners are! Thank you for all the high quality work you guys have done! It is much appreciated even though the issues have been unanticipated. It’s been a pricey last six months for me with all the vehicle repairs, but I’m trying to keep it running well for at least another 100K miles. 👍🏻 I hope I don’t have to come in anytime soon… :)Posted on Google![]()
MaryLou Herrera26 July 2026Trustindex verifies that the original source of the review is Google.
I received good service. I felt comfortable and confident with the service I received.Posted on Google![]()
Diane Castro15 July 2026Trustindex verifies that the original source of the review is Google.
My first experience was great! Ken was professional and fast. I needed a new catalytic converter in my 2014 Kia so it could pass the smog test - Ken was communicative and friendly. I love that they have a company Uber account so I could be taken home after I dropped my car off.Posted on Google![]()
Chip Smith11 July 2026Trustindex verifies that the original source of the review is Google.
Ken & Zac got me in quickly, diagnosed my issues, and got me back on the road tootsweet - pardon my french. (They even laughed at my corny jokes! Thanks, guys...😇) My problem turned out to be much less serious than I thought, and they were in contact with me the through the entire process. AND they got me a rideshare to and from! If you want a shop with friendly, reliable folks, you won't go wrong with TriStar!Posted on Google![]()
William Keim9 July 2026Trustindex verifies that the original source of the review is Google.
TriStar Automotive began with an oil change. Most recently I received more service to my car. It needed the attention and TriStar Automotive provided exceptional service. I would highly recommend TriStar to anyone looking for quality, honesty, and integrity.
Trusted Engine Service & Replacement in Santa Rosa & Sonoma County
Restore performance and reliability to your vehicle with certified engine services backed by a solid warranty.
For Engine Service in Santa Rosa & Sonoma County
Call (707) 571-8866
Increase the longevity of your vehicle with routine maintenance
Engine Rebuilding Services
For almost thirty years, Tristar Automotive has provided Santa Rosa’s #1 engine rebuilding service for cars, trucks, and vans. Our ASE Certified technicians treat every project as if it were their own vehicle and deliver outstanding engine rebuilding for nearly all makes and models. Come in today to discuss your engine rebuilding needs with our stellar service professionals and get an estimate for your project fast!
Replacement Engines by Jasper
JASPER remanufactured gas engines are built to meet or exceed original equipment manufacturer measured tolerances, and most applications are covered by a 3 year/100,000 mile nationwide, transferable parts and labor warranty. These are completely remanufactured engines with all new wear parts, exacting tolerances, and run-tested reliability. Go to our online catalog to get a price on a gas engine that matches your vehicle today!
Engine Diagnostic Services
If your vehicle is giving you trouble you need to bring it into Tristar Automotive today for a thorough engine diagnostic check. Our ASE Certified technicians will use the latest technology to determine what your issue is and provide you with your options for service. You’ll get straight answers to your engine questions at a price you can easily afford!
High Performance Engines Services
Our ASE Certified technicians at Tristar Automotive love nothing more than working on high performance engines. It’s a real passion of ours and we specialize in servicing these unique vehicles year round. There’s no better muscle car service center in Northern California, so make your way to Tristar whenever you need the finest in high performance engine service – including rebuilds and replacements!
Our Customer Reviews
These are just a few reviews from our valued car service & repair customers throughout Sonoma County.
Posted on Google![]()
Robert-Connie Mullan15 October 2026
needed a certificate for DMV. Charged shop rate for three hours for service I suspect took mich less time.Posted on Google![]()
craig alness4 October 2026
Great service, quality work, reasonable prices. I bring my grandma's 1972 Chevelle in every year and trust this team to take good care of this very special car.Posted on Google![]()
K Beau29 September 2026
Wonderful experience all the way around. Did a diagnostic on my older Lexus and provided a detailed report of all its foibles and best way to proceed. From initial phone call to picking up car after, truly an exceptional experience. Thank you!!Posted on Google![]()
Michael Voight27 September 2026
Easy to tow in car. Called me and asked what the issue seemed to be and fixed the problem. They pushed an oil change and air filter change but was quite a bit overpriced. Over $300 for both. I understand they need to make money but be wary of that. Otherwise they did good and fast work.Posted on Google![]()
Pat Pointer18 September 2026
Had a great experience and felt well informed about my F-150 EcoBoost repair options for a coolant leak that caused the engine to overheat. I wasn’t feeling my best while facing the consequences of my truck requiring major repairs. The detailed estimate broke down every cost, from clips and hoses to labor, so there were no surprises. My questions were welcomed, and they took the time to explain what to expect. The staff and management were friendly, knowledgeable, and genuinely helpful. I especially appreciated the straightforward, low-pressure approach compared with some of my past dealership experiences. Highly recommend!Posted on Google![]()
shannon stegner11 September 2026
I had to tow my vehicle into Tristar at 4pm the Friday before a holiday weekend. I was stranded in the side of the road and didn’t know who to call so, after a brief google search, I called Tristar. They let me know I’d could have my car towed over and it could stay over the long weekend but that they’d get back to me with an update as quickly as possible upon return from the holiday. As promised they did get back to me and let me know that the situation with my car was something that was actually covered by the maker of my vehicle via a class action lawsuit / extended warranty fix (my car is 1.5 yrs out of manufacture warranty). They told me to go ahead and make an appt with a local dealership and let me know exactly what to ask for re: this extended warranty. Additionally, they didn’t charge me for the diagnostic time it took them to identify the situation. I’m incredibly appreciative of their responsiveness and honesty in a moment that was very unexpected and stressful. They absolutely have my business from here out!Posted on Google![]()
Harold Duncan29 August 2026
Very efficient and professional work…Staff is very kind and friendly as well…l had a Smog check…Posted on Google![]()
James Fitzgerald22 August 2026
Great service and communication, thank you Team TriStar! Reliable and always stand behind their work and dedication, delivered with kindness and customer satisfaction!Posted on Google![]()
julie berman19 August 2026
Left the dealership where I purchased my car and became a new customer of TriStar. They could not have been nicer, and their fees were very reasonable. Color me very pleased with my overall experience.Posted on Google![]()
H P Mechanical14 August 2026
We have used tri star for many years, for service for our service fleet. We have found them to be honest, fair, efficient and they always keep you in the loop of your repair.Posted on Google![]()
Mark Jones29 July 2026
There good and fast!Posted on Google![]()
Stephen Riedel28 July 2026
I have had a couple recent repairs here including the catalytic converter and brake booster on my ‘98 Tacoma. I’ve been impressed by how responsive, timely, knowledgeable and professional the shop owners are! Thank you for all the high quality work you guys have done! It is much appreciated even though the issues have been unanticipated. It’s been a pricey last six months for me with all the vehicle repairs, but I’m trying to keep it running well for at least another 100K miles. 👍🏻 I hope I don’t have to come in anytime soon… :)