Longboat Key, FL
Diesel Generator Repair in Longboat Key, FL
Trusted diesel engine and generator service for the boats, generators, and RVs that keep this barrier island running.
We send ASE certified diesel mechanics straight to your dock, garage, or storage lot.
Our Services
Diesel Generator Repair and Engine Service Along Gulf of Mexico Drive
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Longboat Key runs the length of Gulf of Mexico Drive, from the bridge at Anna Maria Sound down through Bay Isles to the Longboat Pass at the island's south end. Along that stretch sit private docks, gated condo communities, and marinas that all depend on diesel power staying reliable, whether it's a boat generator at Longboat Key Moorings or a backup generator serving a beachfront tower.
Gulf Coast Power Inc has served this part of Manatee and Sarasota counties since 1999. We know that a diesel issue on a barrier island rarely waits for a convenient time, so our mobile diesel repair trucks come to you instead of asking you to haul a boat or generator off the key. That means service anywhere between Longbeach Village and the Longboat Key Club, dock to driveway.
Whether you own a home near Sleepy Lagoon, manage a condo association's generator maintenance agreement, or keep a cruiser docked behind your house, our team treats every call with the same urgency. We diagnose the problem on site and carry the parts inventory to finish most repairs the same day.
Our Services
Diesel Repair Services Available in Longboat Key
From engine repair to full drivetrain work, our Cummins certified mechanics and ASE certified diesel technicians handle the diesel equipment that keeps Longboat Key's boats, generators, and vehicles moving.
- Diesel AC Repair
Diesel AC Repair
Keep your diesel-powered AC system running through the humid Gulf Coast summer with diagnostics and repairs from technicians who know marine and residential systems alike.
- Diesel Drivetrain and Brake Repair
Diesel Drivetrain and Brake Repair
Comprehensive drivetrain and brake service for diesel trucks and equipment that spend their days hauling boats or gear across the island.
- Diesel Engine Maintenance
Diesel Engine Maintenance
Scheduled diesel engine maintenance and diesel generator maintenance plans built around the salt air and storm season that Longboat Key property owners face every year.
- Diesel Engine Repair
Diesel Engine Repair
Full diesel engine repair and diesel diagnostics for boats, generators, RVs, and trucks, performed dockside or at your property whenever possible.
- Diesel Suspension Repair
Diesel Suspension Repair
Suspension repair for diesel trucks and RVs that handle the causeway crossings and coastal roads leading on and off the key.
- Diesel Transmission Repair
Diesel Transmission Repair
Transmission diagnostics and repair to keep your diesel truck or RV shifting smoothly, whether you're commuting to the mainland or towing a boat to Cannons Marina.
- Mobile Diesel Repair
Mobile Diesel Repair
On site diesel repair delivered straight to your dock, driveway, or storage lot anywhere on Longboat Key, no towing required.
- Truck Diagnostics
Truck Diagnostics
Advanced truck diagnostics to pinpoint issues in diesel trucks used for towing, hauling, or commercial work throughout the barrier islands.
Local considerations
Salt Air, Storm Season, and Longboat Key's Diesel Equipment Needs
Living on a barrier island means diesel equipment works harder than it would inland. Salt air accelerates corrosion on marine diesel engines and generator components, and hurricane season puts real demand on generator upkeep for the condo towers and homes that line the Gulf side of the key.
Boat owners docked near Longbeach Village or the Moorings often need marine diesel engine repair after long stretches of saltwater use, while snowbird residents returning each fall frequently need generator diagnostics on units that sat idle through the summer. RV owners staging at mainland storage lots before a trip also count on mobile RV repair to catch small issues before they become breakdowns on the road.
Our technicians build maintenance plans around this reality, focusing on corrosion prevention, fuel system checks, and load testing that matches how hard Longboat Key equipment actually gets used.
Why Choose Us
Why Longboat Key Residents Choose Gulf Coast Power
Property owners and boaters on the key choose us because we combine certified expertise with the flexibility a barrier island demands.
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Cummins Certified and ASE Certified Technicians
Our team holds Cummins certification and ASE certification, giving you factory-level expertise for diesel generator repair, engine service, and diagnostics on nearly any make or model.
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Mobile Service to Your Dock or Driveway
We bring diesel diagnostics and repair equipment directly to Longboat Key properties, saving you the trouble of transporting a boat, generator, or RV off the island.
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Locally Owned Since 1999
Gulf Coast Power Inc has served Manatee and Sarasota county communities, including Longboat Key, for more than two decades, with a large parts inventory and prompt estimates.
Maintenance checklist
Diesel Generator Maintenance Checklist for Longboat Key Property Owners
Before the next storm season or boating trip, run through a few basics that keep diesel equipment reliable on the island.
- Inspect fuel tanks for water intrusion after heavy rain or storm surge
- Check battery connections and cables for salt corrosion
- Test automatic transfer switches on backup generators
- Change fuel filters and diesel oil on the recommended schedule
- Run a load test on standby generators before hurricane season begins
- Inspect marine diesel engines for saltwater cooling system buildup
Our Services
Diesel Service Across Sarasota and Manatee County Barrier Islands
Gulf Coast Power Inc also serves the surrounding communities that share Longboat Key's waterfront lifestyle and seasonal population.
Common questions
Answers before you call
The questions we are asked most, answered by the team that does the work.
Read all our FAQsCan you work on my boat's engine and generator, or just one or the other?
Both. We handle diesel marine engine repair and diesel boat generator repair as part of our marine diesel services, checking your engine and onboard generator together whenever possible. Many of our Longboat Key and Anna Maria customers have us check both systems during the same visit to save a second trip.
Do you offer mobile diesel repair, or do I need to bring my boat or RV to you?
We run a mobile diesel repair service across Anna Maria, Bradenton, Bradenton Beach, Holmes Beach, Longboat Key, North Port, Palmetto, Sarasota, and Venice. On site diesel repair means we come to your marina slip, driveway, or job site with the tools and parts to handle most diesel engine repair and diesel generator service calls without you needing to haul anything.
Do you sell and install generators, or only repair them?
We do both. Our Cummins generator sales program covers residential generator service for homeowners who want reliable backup power, along with industrial generator service for businesses that can't afford downtime. Once your unit is installed, we also handle generator installation follow-up and ongoing diesel generator maintenance to keep it running.
Local service
Serving Longboat Key from our Palmetto shop
- Shop
1316 18th Avenue Drive East, Palmetto, FL 34221
Get directions - Hours
Mon to Fri, 8:30am to 5:00pm
- Phone
Get Started
Schedule Diesel Generator Repair in Longboat Key Today
Whether your backup generator needs a load test before the next storm rolls in or your boat's diesel engine needs attention before the next trip out through Longboat Pass, our team is ready to help. Call Gulf Coast Power Inc and we'll send an ASE certified diesel mechanic straight to your Longboat Key address.
Request service