Why Diesel Fuel Matters More Than You Think

Contaminated fuel is the #1 cause of diesel engine shutdowns—and it usually starts long before you notice a problem. Whether you're prepping for a long offshore passage or managing backup power, fuel reliability is non-negotiable.

What most boaters don’t realize?

Dirty fuel isn’t just about water or sludge in the tank. It’s what happens when microbes grow between water and diesel, or when filters clog quietly while the engine’s running—until it’s not.

That’s where Keenan Filters come in.

Not Just a Filter. A Full Fuel Management System.

We didn’t set out to build another fuel filter. We built the system we wished we had when our own diesel engine kept shutting down unexpectedly.

Every Keenan system is a complete fuel management solution—designed to filter, polish, warn, prime, and protect. All in one compact, easy-to-service package.

Whether your vessel uses 60 gallons per hour or 1500, we make a model engineered to match your engine's needs.

Dual Filter Design with Electric Filter Switching (EFS)

Switch from a clogged filter to a clean one—without ever shutting down your engine.

Top-Loading Filters

No more crawling into the bilge or spilling fuel. Just lift the lid, swap the element, and go.

Built-In Fuel Polishing

Cleans stored fuel, removes sludge and microbial growth, and extends filter life.

Remote Monitoring & Alerts

Stay ahead of problems with early warnings—placed where you can actually see them.

Self-Priming Internal Fuel Paths

No tools. No mess. No external pumps needed to bleed or refill your filters.

Uses Genuine Racor® Elements

Easily replaceable, globally available filter cartridges.

The Cost of Ignoring Your Fuel

If you've ever had to troubleshoot a shutdown in rough seas—or trust a backup generator that doesn’t start—you know how critical clean fuel is. Keenan systems are designed to solve these problems before they start.

  • No More

    Guessing

    if your Filters Clogged

  • No More

    Scrambling

    to bleed the system

  • No More

    Wondering

    whats really in your fuel tank

Trusted by Sailors, Cruisers & Powerboat Owners

From bluewater sailors to liveaboards, catamaran owners to commercial operators—boaters around the world rely on Keenan systems for one simple reason: they work.

We’ve built these systems to meet ABYC, USCG, and ISO standards—and to solve the real-world frustrations we experienced ourselves.

Choose the Right System for Your Vessel

No matter your setup—single engine, twin engine, or onboard generator—we have a system that fits.