

Premier Marine Fuel Systems / 30+ Years of Proven Excellence
Precision. Safety. Performance.
Fuel Tec Key West has built a reputation as the Florida Keys trusted leader in marine fuel system services. We combine deep technical expertise with state-of-the-art equipment.
We provide complete fuel system maintenance to keep your engine running safely and efficiently. Our services include inspection, cleaning, repair, and replacement of fuel lines, tanks, pumps, and filters. We use high-quality, marine-grade components that resist corrosion and meet strict safety standards. Whether you're

Fuel Tank Cleaning
We eliminate sludge, debris, and microbial growth that compromise fuel quality and engine performance.
* Please feel free to read more about are fuel polishing & tank cleaning page.

Routine fuel filter changes are essential for keeping your engine running clean, smooth, and protected from water, sludge, and contaminants. Replacing the filter at regular intervals prevents fuel starvation, rough running, and injector damage, ensuring maximum performance and reliability.
Rebuilding the primary fuel filter—using an OEM-spec rebuild kit—restores the internal seals, O-rings, gaskets, and drain components to like-new condition. A proper rebuild brings the filter housing back to full vacuum integrity, eliminates air leaks, and maintains correct filtration flow rates. Combined with a fresh filter element, the rebuilt primary filter provides clean, stable fuel delivery and long-term protection for any marine fuel system.

Custom onboard fuel polishers give boats a dedicated, built-in system to continuously clean, circulate, and condition diesel right inside the tank. These systems remove water, sludge, and microbial contamination before it reaches the engine, providing cleaner burn, longer filter life, and greater reliability offshore. A properly engineered onboard polisher keeps fuel fresh, prevents injector damage, and ensures your vessel is ready every time you turn the key.

Backup generators are essential during hurricanes, providing reliable power when the grid fails and keeping critical systems—like refrigeration, pumps, and communications—running. Because storms can cause long outages and fuel contamination, maintaining clean, dry fuel is just as important as the generator itself. Regular testing, fresh fuel, and proper storage ensure your generator starts instantly when a hurricane hits and keeps your home or business powered through the storm.

We perform calibrated pressure testing to verify tank integrity, ensuring safety and leak-free operation.

We restore or replace deteriorated or corroded fuel tanks using marine-grade, corrosion-resistant materials. To help prevent external corrosion, we ensure proper ventilation and airflow within the tank locker to minimize trapped moisture and salt air exposure. Each tank installation is carefully grounded and bonded to reduce galvanic corrosion. Our approach extends the life of your fuel system.
* Please read more about are fuel tank replacement page.

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Don't neglect your boat trailer! We can provide routine maintenance and repairs to keep your trailer in top condition.

We perform calibrated pressure testing to verify tank integrity, ensuring safety and leak-free operation.

We restore or replace deteriorated or corroded fuel tanks using marine-grade, corrosion-resistant materials. To help prevent external corrosion, we ensure proper ventilation and airflow within the tank locker to minimize trapped moisture and salt air exposure. Each tank installation is carefully grounded and bonded to reduce galvanic corrosion. Our approach extends the life of your fuel system.
* Please read more about are fuel tank replacement page.

Fuel manifolds allow multiple tanks, filters, and engines to be safely managed from a single controlled point. A properly designed manifold provides clean, balanced fuel flow, easy tank selection, and fast isolation of components for service. Using high-grade valves, stainless fittings, and labeled lines ensures leak-free operation and makes switching tanks or routing fuel simple, reliable, and maintenance-friendly for any marine fuel system.

Fuel transfer systems safely move fuel between tanks, day tanks, and filtration stages using dedicated pumps, valves, and hoses. A properly designed system allows controlled fuel routing, fast tank balancing, and clean transfer through primary filtration. Quality components and clear labeling ensure reliable operation, reduce contamination risk, and make maintenance or emergency fuel management simple and efficient for any marine vessel.

Fuel lab testing—such as DSM analysis and ASTM D975 compliance testing—provides a detailed look at fuel quality, stability, and contamination levels. These tests identify water, sediment, microbial growth, and other issues that can damage engines or fuel systems. By verifying that diesel meets strict ASTM D975 specifications, you ensure proper performance, cleaner combustion, and protection for high-value equipment.

Combustible gas sniffers continuously monitor the bilge and engine compartment for dangerous fuel vapors before they reach explosive levels. Marine-grade sensors detect gasoline fumes, solvent vapors, and other flammables, triggering visual and audible alarms if unsafe concentrations are present. A properly installed sniffer system adds a critical layer of safety by giving early warning, reducing ignition risk, and helping ensure the vessel remains safe during fueling, maintenance, and engine operation.
Whether you're preparing for extended cruising or optimizing a commercial vessel, FUEL TEC Key West delivers unmatched results grounded in safety, expertise, and innovation.
Florida Keys, Florida, USA
305-304-2101 Lee@fuelteckeywest.com steve@fuelteckeywest.com
Mon | 08:00 am – 06:00 pm | |
Tue | 08:00 am – 06:00 pm | |
Wed | 08:00 am – 06:00 pm | |
Thu | 08:00 am – 06:00 pm | |
Fri | 08:00 am – 06:00 pm | |
Sat | 09:00 am – 02:00 pm | |
Sun | Closed |
Privacy Policy:
Sharing of Personal Information:
Fuel Tec Key West will not share, sell, or disclose your personal information or mobile opt-in data to third parties without your explicit consent, except where required by law. Your information is kept confidential and used solely for the purposes you have agreed to. All the above categories exclude text messaging originator opt-in data and consent; this information will not be shared with third parties. Text messaging opt-in data is not being shared with third parties.
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You have the right to opt out of receiving text messages from Fuel Tec Key West at any time. To opt-out, you can reply "STOP" to any text message you receive from us.
Consent and Opt-In:
By providing your phone number and opting in to receive text messages, you consent to the collection and use of your personal information as described in this policy. We ensure that your consent is obtained explicitly and that you are informed about the types of messages you will receive.
SMS Consent Message:
By messaging, you agree to receive messages related to appointment reminders, status updates, and answers to FAQ’s at the provided number from Fuel Tec Key West. Message frequency varies, and standard message and data rates may apply. You have the right to OPT-OUT receiving messages at any time. To OPT-OUT, reply "STOP" to any text message you receive from us. Reply HELP for assistance.
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