Perko Fuel Fill Kits

Perko Fuel Fill Kits: Decades of Marine Fueling Expertise

When it comes to keeping your boat's fuel system safe, sealed, and compliant, few names carry more authority than Perko. Perko has been manufacturing fuel system components since 1936, producing fuel filters, fuel water separators, fuel system vents, fuel fills and caps — and the fuel system product the brand is best known for: the combination fill vent. That kind of institutional knowledge translates directly into the precision and reliability that boaters depend on every time they pull up to the fuel dock.

What Makes Perko Fuel Fill Kits Stand Out

Perko crafts marine gas caps and diesel deck fills optimized for functionality and safety, available in configurations for both vintage and current fuel systems. This broad compatibility is a hallmark of the brand — whether you're restoring an older vessel or outfitting a new-build, there's a Perko fuel fill solution engineered to fit.

In 2011, the U.S. Environmental Protection Agency mandated that fuel systems on new boats be sealed to protect air quality from hydrocarbon emissions, and Perko responded with a full line of EPA-compliant, replacement sealed gas caps featuring built-in vacuum over pressure relief (VOPR), each proudly made in the USA. The company's packaging makes selecting the right model easy: blue is for pre-2011 vented systems and green is for post-2011 sealed designs. This color-coded system takes the guesswork out of a decision that genuinely matters — using the wrong cap can be dangerous to both the boater and the environment.

Key Features of Perko Fuel Fill Kits

When selecting Perko fuel fill components, key factors to consider include venting needs, angle, material, and lockability. Perko addresses all of these with a thoughtfully engineered product range. Highlights of their fuel fill lineup include:

• Combination Fill Vents — Perko's combination fill vent is a testament to their engineering expertise and attention to detail, integrating fueling and venting into a single deck-mounted unit.
• Vented and Sealed Caps — Polymer and chrome-plated bronze options are available, with O-rings and retaining systems to prevent loss and ensure a secure seal.
• Integral Flame Arrestors & Heightening Rings — Heightening rings raise the opening between the fuel cap and fill an additional 3/8" above the deck surface, reducing the likelihood that splashed water will enter the fuel system through the breathing vent.
• Locking Caps — Built-in lock cylinders with key hole covers add security to deck plate installations.
• EPA-Compliant Gas Fills — Perko has expanded its line to help boat builders properly and safely comply with new diurnal emissions regulations, including carbon canisters and specialized fuel system valves.

Made in the USA, Built for the Marine Environment

Hundreds of thousands of component parts and tens of thousands of high-quality marine hardware pieces are built each year at Perko's Miami facility, all sourced from American-made raw materials. Designed to withstand harsh marine environments, Perko products are favored by professionals for their performance and reliability. That commitment to domestic craftsmanship is why Perko fuel fill kits appear on everything from weekend runabouts to commercial workboats.

Ready to upgrade or replace your boat's deck fill system? Browse all Fuel Fill Kits to find the right Perko solution for your application, or visit the full Perko brand page to explore their complete marine hardware catalog.