Fuel & Air Systems
Marine Fuel & Air Systems
Fuel Pumps, Filters, Lines, Fittings & Air Intake Parts
Shop marine fuel pumps, fuel filters, water separators, fuel hoses, tanks, fittings, carburetor parts, fuel injection components, flame arrestors, air filters, and intake hardware for reliable engine performance.
Fitment Check
Ask Parts Desk
Match engine make, model, serial range, fuel type, hose rating, filter thread, flow direction, pressure, and mounting style before ordering.
Fuel systems are safety-critical. Confirm USCG/EPA hose ratings, ignition protection, leak-free fittings, ventilation, filter micron rating, and manufacturer service procedures before installation.
Top OEM Fuel & Air Searches
Fuel & Air Subcategories
Fuel PumpsElectric and mechanical supply pumps Fuel FiltersElements, spin-ons, and filter kits Water SeparatorsWater-removing filter assemblies Fuel Hoses & LinesEPA and marine-rated fuel line Fittings & ConnectorsAdapters, tees, barbs, and connectors Fuel Tanks & VentsTanks, fills, caps, and vent parts Carburetor PartsRebuild kits, gaskets, and linkages Fuel InjectionInjectors, regulators, and throttle parts Air IntakeFilters, flame arrestors, and breathers
Fitment
Start With Engine, Fuel Type, and Part Number
Fuel and air parts can vary by engine family, serial range, pressure, fitting size, flow direction, fuel type, and emissions setup. Use the existing part number or engine data plate whenever possible.
Safety
Fuel Leaks Are Not Guesswork
Replace cracked hoses, leaking fittings, loose clamps, contaminated filters, damaged flame arrestors, and suspect fuel pumps promptly. Use parts rated for marine fuel service.
After any fuel-system work, inspect for leaks, fumes, chafe, clamp security, and proper ventilation before starting the engine.
Fuel Delivery
Pumps, hoses, fittings, tanks, caps, vents, regulators, and connectors move fuel safely from tank to engine.
Filtration
Fuel filters and water separators protect pumps, injectors, carburetors, and engines from water and debris.
Air Intake
Air filters, flame arrestors, breathers, silencers, intake gaskets, and manifolds help the engine breathe properly.
Service
Fuel System Maintenance Prevents Hard Starts
Contaminated fuel, restricted filters, aging hoses, weak pumps, clogged vents, and dirty flame arrestors can cause hard starting, stalling, poor acceleration, and unsafe fuel leaks.
Change filtersReplace filters and water-separator elements on schedule or after contamination.
Inspect hosesLook for cracking, swelling, stiffness, chafe, loose clamps, and outdated fuel line ratings.
Check airflowClean or replace air filters and inspect flame arrestors for damage or oil contamination.
Verify fittingsConfirm threads, seals, clamps, connectors, and routing are correct and leak-free.
FAQ
Fuel & Air System Questions
How often should marine fuel filters be replaced?
Follow the engine manual, but many boaters replace fuel filters at least annually or when contamination, water, hard starting, or performance problems appear.
What does a fuel/water separator do?
A fuel/water separator helps remove water and debris from fuel before it reaches the engine, reducing risk of corrosion, poor running, injector issues, and carburetor problems.
Can I use automotive fuel hose on a boat?
No. Use marine-rated fuel hose that meets the correct fuel, permeation, fire, and installation requirements for the application.
What is a flame arrestor?
A flame arrestor is an intake safety device on gasoline inboard engines that helps prevent flame from escaping the intake in a backfire event while allowing airflow.
Ready to Service Fuel & Air?
Shop Marine Fuel Pumps, Filters, Lines, Fittings & Intake Parts
Search by engine brand, part number, fuel type, filter style, hose rating, fitting size, carburetor part, injector component, or flame arrestor.
PVC Fuel Hose - Fiber Reinforced - Internal Ø9/32" (7mm) x External Ø33/64" (13mm)
Original price
$11.99
Original price
$11.99
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Original price
$11.99
Original price
$11.99
Current price
$8.59
$8.59
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$8.59
Current price
$8.59
In stock
Premium Fiber-Reinforced PVC Fuel Hose - Marine Fuel LineThis professional-grade fiber-reinforced PVC fuel hose features Internal Ø9/32" (7mm) and ...
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Original price
$11.99
Original price
$11.99
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Original price
$11.99
Original price
$11.99
Current price
$8.59
$8.59
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$8.59
Current price
$8.59
Save 28%
2-Way Fuel Valve - 10mm (25/64") Hose - OMC/Johnson/Evinrude Engines
Original price
$112.95
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Original price
$112.95
Original price
$112.95
$112.95
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$112.95
Current price
$112.95
In stock
2-Way Fuel Valve for OMC/Johnson/Evinrude EnginesPremium marine fuel shut-off valve designed specifically for OMC, Johnson, and Evinrude outboard e...
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Original price
$112.95
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Original price
$112.95
Original price
$112.95
$112.95
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$112.95
Current price
$112.95
2-Way Fuel Valve - Ø25/64" (10mm) Hose - Yamaha/Mercury/Honda/Mariner Engines
Original price
$139.99
Original price
$139.99
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Original price
$139.99
Original price
$139.99
Current price
$112.95
$112.95
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$112.95
Current price
$112.95
In stock
Premium 2-Way Marine Fuel Valve - Universal Engine CompatibilityThis professional-grade 2-way fuel shut-off valve is designed for Yamaha, Mercury, ...
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Original price
$139.99
Original price
$139.99
-
Original price
$139.99
Original price
$139.99
Current price
$112.95
$112.95
-
$112.95
Current price
$112.95
Save 19%