Monday through Friday: 8:00am – 5:00pm
On lunch from 12:30pm – 1:30pm
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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?

Our ASE-certified technicians offer everything from diagnostics to Jasper remanufactured engines under a 3yr/100k-mile warranty. Combined with our BBB A+ rating and BAR licensed facility, we’re trusted across the North Bay for engine service that meets high manufacturer standards.

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!

Learn more at Jasper Engines or contact Tristar Automotive today!

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.

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.

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.

Schedule Service with Tristar Automotive

To schedule an appointment with Tristar Automotive, give us a call at (707) 571-8866 or fill out the form below with your contact information and requested service(s). One of our team members will get back to you as soon as possible!

Appointment Form