Tri State Engine Service

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Tri State Engine Service Tri State Engine Service
Your Engine Solution Center
Repair, Rebuild or Replace

30+ Years of Experience in Parts and Service

Equipment Service Team

Tri State Engine provides expert engine rebuilding, including parts, service, and repair in the Davenport, IA and surrounding area. We offer sales and service the all the top brands of both gasoline and diesel engines, and we are authorized dealer of Duetz diesel engines. We also offer a convenient mobile service for those "difficult to deliver" projects. Tri State Engine Offers:
Engine rebuilding
Engine replacement
Engine repair
Engine sales - including brand names like Lombardini, Mitsubishi, Yanmar, Kubota, Hatz, and Perkins engines
Mobile service

Our equipment service team and friendly staff is here to answer any questions you may have about our products and services.

Don’t risk your uptime on knock-off parts. When your fleet is on the line, we always recommend using genuine Vanguard® p...
10/20/2026

Don’t risk your uptime on knock-off parts. When your fleet is on the line, we always recommend using genuine Vanguard® parts.
✅ Exact fit, every time
✅ Commercial-grade durability
✅ Protects your equipment's warranty
Keep your engines running the way they were built to.
Stop in Tri State Engine Service for more info on Vanguard engines.

Spilled oil on the shop floor? Not anymore. 🛑Vanguard’s Oil Guard System is a 100% tool-free, mess-free oil change. Just...
10/13/2026

Spilled oil on the shop floor? Not anymore. 🛑
Vanguard’s Oil Guard System is a 100% tool-free, mess-free oil change. Just twist, swap, and pour. Best part? You only have to do it every 500 hours.
Stop in Tri State Engine Service to upgrade your fleet today.

Trusted by turf pros.Vanguard® V-twin engines deliver the power and reliability crews count on, no matter the conditions...
10/06/2026

Trusted by turf pros.
Vanguard® V-twin engines deliver the power and reliability crews count on, no matter the conditions.
Stop in Tri State Engine Service for more info on Vanguard engines.

Stop letting heavy dust slow your crew down. The Briggs & Stratton® CXi features a Cyclonic Debris Management system tha...
09/29/2026

Stop letting heavy dust slow your crew down. The Briggs & Stratton® CXi features a Cyclonic Debris Management system that forces dirt out early so your engine lasts longer.
Stop in Tri State Engine Service to upgrade your fleet.

Don't gamble your uptime on aftermarket parts. 🚫We always recommend Vanguard® Genuine Parts for a reason. They are engin...
09/22/2026

Don't gamble your uptime on aftermarket parts. 🚫
We always recommend Vanguard® Genuine Parts for a reason. They are engineered specifically for your engine, which means you get an exact fit, zero guesswork, and the lasting performance your mower was designed for.
Stock up at Tri State Engine Service.

09/15/2026

Downtime costs you money. That's why we stock Vanguard-powered equipment. The engines survive factory torture tests so they won't quit on your toughest job sites.
Stop in Tri State Engine Service for more info on Vanguard engines.

Bogging down in thick grass? Not anymore. The Briggs & Stratton® CXi Series V-Twin is available with EFI/ETC technology....
09/08/2026

Bogging down in thick grass? Not anymore.
The Briggs & Stratton® CXi Series V-Twin is available with EFI/ETC technology. What does that mean for your crew?
⚡ Smoother, instant power
⛽ Better fuel efficiency
⚡ Consistent blade speed in the thickest turf
Never drop RPMs again.
Stop in Tri State Engine Service for more info on CXi engines.

Thick, wet grass slowing down your crew? Cut the double-cuts. 🛑The Vanguard BIG BLOCK™ V-Twin is built to maintain blade...
09/01/2026

Thick, wet grass slowing down your crew? Cut the double-cuts. 🛑
The Vanguard BIG BLOCK™ V-Twin is built to maintain blade speed even in the heaviest turf. Get a clean cut on the first pass, every time.
Stop in Tri State Engine Service for more info Vanguard-powered ZTR's.

Tired of pulling your mowers off the job every 100 hours? The Vanguard® Oil Guard™ system stretches those intervals to u...
08/25/2026

Tired of pulling your mowers off the job every 100 hours? The Vanguard® Oil Guard™ system stretches those intervals to up to 500 hours. Plus, you'll save about 60% on maintenance costs*.
Stop in Tri State Engine Service for more info on Vanguard Oil Guard.

*Per season, per unit on oil maintenance.

Dust, dirt, and clippings slowing you down? The Briggs & Stratton® CXi Series V-Twin engines are built for high-debris c...
08/18/2026

Dust, dirt, and clippings slowing you down?
The Briggs & Stratton® CXi Series V-Twin engines are built for high-debris conditions. Thanks to a patented 5-Step Debris Management System, your crew stays out cutting instead of stopping to clean.
Stop in Tri State Engine Service for more info on Briggs & Stratton engines.

Address

3139 W 73rd Street
Davenport, IA
52806

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+15634454414

Website

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