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.
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
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.
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.
Filters
Seachoice 50-15554 Reed Switch Fuel Sender – 12 in. (300mm)
Seachoice 50-15554 Reed Switch Fuel Sender – 12 in. (300mm)Accurate fuel level monitoring for shallow to mid-depth marine fuel tanks. The Seachoice...
View full detailsSeachoice 50-15561 Reed Switch Fuel Sender – 14 in. (350mm)
Seachoice 50-15561 Reed Switch Fuel Sender – 14 in. (350mm)Accurate fuel level monitoring for mid-depth marine fuel tanks. The Seachoice 50-15561 i...
View full detailsSeachoice 50-15563 Reed Switch Fuel Sender – 16 in. (400mm)
Seachoice 50-15563 Reed Switch Fuel Sender – 16 in. (400mm)Accurate fuel level monitoring for mid-depth marine fuel tanks. The Seachoice 50-15563 i...
View full detailsSeachoice 50-15571 Reed Switch Fuel Sender – 18 in. (450mm)
Seachoice 50-15571 Reed Switch Fuel Sender – 18 in. (450mm)Accurate fuel level monitoring for mid-depth marine fuel tanks. The Seachoice 50-15571 i...
View full detailsSeachoice 50-15573 Reed Switch Fuel Sender – 24 in. (600mm)
Seachoice 50-15573 Reed Switch Fuel Sender – 24 in. (600mm)Reliable fuel level monitoring for deep marine fuel tanks. The Seachoice 50-15573 is a 2...
View full detailsSeachoice 50-15574 Reed Switch Fuel Sender – 26.4 in. (660mm)
Seachoice 50-15574 Reed Switch Fuel Sender – 26.4 in. (660mm)Accurate fuel level monitoring for deep marine fuel tanks. The Seachoice 50-15574 is a...
View full detailsSeachoice 50-15576 Reed Switch Fuel Sender – 32 in. (800mm)
Seachoice 50-15576 Reed Switch Fuel Sender – 32 in. (800mm)Reliable fuel level monitoring for deep marine fuel tanks. The Seachoice 50-15576 is a 3...
View full detailsSeachoice 50-15577 Reed Switch Fuel Sender – 36 in. (900mm)
Seachoice 50-15577 Reed Switch Fuel Sender – 36 in. (900mm)Accurate fuel level monitoring for the deepest marine fuel tanks. The Seachoice 50-15577...
View full detailsSeachoice 50-15421 Electric Fuel Sender – Float Arm, 6–27 in. Tank
Seachoice 50-15421 Electric Fuel Sender – Float Arm, 6–27 in. TankA versatile float-arm fuel sender that covers a wide range of marine tank depths ...
View full detailsSeachoice 15441 Marine Fuel Gauge – Black Bezel, 12V
Seachoice 15441 Marine Fuel Gauge – Black Bezel, 12VA clean, low-profile fuel gauge built for 12V negative ground marine electrical systems. The Se...
View full detailsSeachoice 50-15461 Electric Fuel Sender – Float Arm, 6–12 in. Tank
Seachoice 50-15461 Electric Fuel Sender – Float Arm, 6–12 in. TankA straightforward sender replacement for shallow marine fuel tanks. The Seachoice...
View full detailsSeachoice 50-15471 Electric Fuel Sender – Float Arm, 4–24 in. Tank
Seachoice 50-15471 Electric Fuel Sender – Float Arm, 4–24 in. TankA reliable, sender-only solution for boats that already have a working fuel gauge...
View full detailsSeachoice 50-15501 Marine Fuel Gauge Kit – Gauge & In-Tank Sender
Seachoice 50-15501 Marine Fuel Gauge Kit – Gauge & In-Tank SenderEverything you need to add or replace a complete fuel monitoring system on you...
View full detailsSeachoice 50-15521 Reed Switch Fuel Sender – 6 in. (150mm)
Seachoice 50-15521 Reed Switch Fuel Sender – 6 in. (150mm)Precise fuel level monitoring for the most compact marine fuel tanks. The Seachoice 50-15...
View full detailsSeachoice 50-15531 Reed Switch Fuel Sender – 7 in. (180mm)
Seachoice 50-15531 Reed Switch Fuel Sender – 7 in. (180mm)Accurate fuel level monitoring for the shallowest marine fuel tanks. The Seachoice 50-155...
View full detailsSeachoice 50-15541 Reed Switch Fuel Sender – 8 in. (200mm)
Seachoice 50-15541 Reed Switch Fuel Sender – 8 in. (200mm)Reliable fuel level monitoring for shallow-tank boats. The Seachoice 50-15541 is an 8-inc...
View full detailsSeachoice 50-15543 Reed Switch Fuel Sender – 9.2 in. (230mm)
Seachoice 50-15543 Reed Switch Fuel Sender – 9.2 in. (230mm)Keep your fuel readings accurate and your sender reliable. The Seachoice 50-15543 is a ...
View full detailsSeachoice 50-15551 Reed Switch Fuel Sender – 10 in. (250mm)
Seachoice 50-15551 Reed Switch Fuel Sender – 10 in. (250mm)Accurate fuel level monitoring starts with a reliable sender. The Seachoice 50-15551 is ...
View full detailsSeachoice 50-15553 Reed Switch Fuel Sender – 11 in. (270mm)
Seachoice 50-15553 Reed Switch Fuel Sender – 11 in. (270mm)Get accurate, reliable fuel level readings without the headaches of mechanical failure. ...
View full detailsSierra 64082 Fuel Gauge Sender Replacement Gasket
Sierra 64082 – Fuel Gauge Sender Replacement GasketKeep your fuel system sealed and your readings accurate. The Sierra 64082 is a direct-fit replac...
View full detailsPCM Stainless Steel Fuel Line – Obsolete Stock | 21045
PCM Stainless Steel Fuel Line — Part #21045 | Obsolete Stock This is a genuine PCM stainless steel fuel line for Pleasurecraft Marine inboard engin...
View full detailsPCM Stainless Steel Fuel Line – Obsolete Stock | 98113
PCM Stainless Steel Fuel Line – Obsolete Stock | 98113A genuine PCM stainless steel fuel line for inboard engine fuel systems. This part (98113) ha...
View full detailsPCM Fuel Line – Obsolete Stock | 98114
PCM Fuel Line – Obsolete Stock | 98114A genuine PCM fuel line for inboard engine fuel systems. This part (98114) has been discontinued by the manuf...
View full detailsPCM Electric Low-Pressure Fuel Pump Assembly – FCC | RA080018B
PCM Electric Low-Pressure Fuel Pump Assembly – FCC | RA080018BKeep fuel moving reliably from tank to engine with this OEM-specification low-pressur...
View full detailsPCM High Pressure Fuel Pump – FCC | RA080025A
PCM High Pressure Fuel Pump – FCC | RA080025ARestore consistent fuel pressure and reliable engine performance with a genuine OEM-specification high...
View full detailsPCM Modular Returnless Fuel System – 5.0/5.7L Closed Cooling | RA080034A
PCM Modular Returnless Fuel System – 5.0/5.7L Closed Cooling | RA080034AA complete modular returnless fuel system assembly for PCM 5.0L and 5.7L cl...
View full detailsMercury Gen III Cool Fuel Filter Disc | 35-892665 / 8M0204703
Mercury Gen III Cool Fuel Filter Disc — 35-892665 / 8M0204703Keep your Mercury or MerCruiser fuel system clean and protected with this OEM replacem...
View full detailsScepter Yamaha Female Fuel Connector – 5/16" SCE-05813
A direct-fit female fuel connector for Yamaha outboard engines. This Scepter connector mates with the standard Yamaha-style male fitting on your en...
View full detailsFuel Element with Bail Handle - PF986
The Baldwin PF986 Fuel Filter Element is a cartridge-style diesel fuel filter designed for compatible marine, industrial, and equipment fuel filter...
View full detailsCaterpillar 5I-7951 Advanced Efficiency Secondary Fuel Filter
The Caterpillar 5I-7951 Advanced Efficiency Secondary Fuel Filter is a heavy-duty spin-on fuel filter designed for compatible Caterpillar diesel en...
View full detailsParker Racor 500 Turbine Series Replacement Filter Element — 2010PM-OR 30 Micron
The Racor 2010PM-OR is a genuine replacement cartridge filter element for Racor 500 Turbine Series fuel filter and water separator housings. This 3...
View full detailsParker Racor Turbine Series Replacement Filter Element — 2040V30 30 Micron
Racor 30-Micron Turbine Series Replacement Filter Element (RAC-2040V30) Keep your marine fuel system running clean with the Racor 2040V30 replaceme...
View full detailsParker Racor Marine Fuel Filter Water Separator — 230RMAM
The Parker Racor 230RMAM Marine Fuel Filter Water Separator is a compact diesel fuel filtration assembly designed for compatible marine propulsion ...
View full detailsSierra 18-7789 Fuel/Water Separating Filter | 21 Micron | Volvo Penta OMC
Sierra 18-7789 Fuel/Water Separating Filter Part Number: 18-7789 Brand: Sierra Official Product Type: Spin-on Fuel/Water Separating Filter Fi...
View full detailsSierra Marine Fuel/Water Separating Filter — 18-7845 Long 21 Micron
The Sierra 18-7845 is a marine fuel/water separating spin-on filter designed for gasoline applications and built to help protect the fuel system fr...
View full detailsSierra Marine Fuel/Water Separating Filter — 18-7846
The Sierra Marine 18-7846 Fuel Water Separating Filter, also cross-referenced as Aqua Power AP-6040, is a marine spin-on replacement filter designe...
View full detailsAqua Power Fuel/Water Separating Filter — AP-6012
The Sierra / Aqua Power AP-6012 Fuel Water Separating Filter, commonly cross-referenced with Sierra Marine 18-7846, is a heavy-duty marine replacem...
View full detailsSierra Marine - Fuel Water Separator Filter - 18-7862
The AP-1647 Fuel Water Separator Filter Element is a marine replacement filter element commonly cross-referenced with Sierra Marine 18-7862. It is ...
View full detailsMercury Quicksilver Under-Cowl Fuel Filter Kit 35-87946Q04 | 6–60HP Outboard
Mercury Quicksilver Under-Cowl Fuel Filter Kit 35-87946Q04 Part Number: 87946Q04 | Also listed as: 35-87946Q04 / 35-87946K04 Brand: Mercury / Qui...
View full detailsMercury MerCruiser 3.0L Fuel Pump Gasket - 27-8M0108647
The Mercury MerCruiser Quicksilver 27-8M0108647 is a genuine Mercury Marine OEM fuel pump gasket used on select MerCruiser gasoline engines where t...
View full detailsMercury MerCruiser 2BBL Carburetor Base Mounting Gasket - 27-8079821
The Mercury MerCruiser Quicksilver 27-8079821 is a genuine Mercury Marine OEM carburetor base mounting gasket used on select MerCruiser carbureted ...
View full detailsMercury MerCruiser Fuel Cooler Quad Ring Seal - 26-8M0214975
The Mercury MerCruiser Quicksilver 26-8M0214975 is a genuine Mercury Marine OEM fuel cooler quad ring seal used in select Mercury and MerCruiser fu...
View full detailsMercury MerCruiser Fuel Pump Mounting Plate Gasket - 27-42457
The Mercury MerCruiser Quicksilver 27-42457 is a genuine Mercury Marine OEM fuel pump mounting plate gasket used on select GM-based MerCruiser V6 s...
View full detailsMercury Quicksilver Fuel Line Connector 22-33821 | 1/4" NPT x 3/8" Inverted Flare Brass Fitting
OEM Brass Fuel Line Connector for Mercury & MerCruiser Fuel SystemsThe Mercury Quicksilver 22-33821 is an OEM brass fuel-system adapter fitting...
View full detailsMercury - Brass Tee Fitting - 286241
The Mercury MerCruiser Quicksilver Brass Tee Fitting 22-286241 is a genuine OEM-style 3-way brass intersection fitting used in select Mercury outbo...
View full detailsYanmar Fuel Feed Pump Assembly 129158-52101 - Special Order
The Yanmar 129158-52101 Fuel Feed Pump Assembly is a diesel fuel supply/lift pump used on compatible Yanmar marine and industrial diesel engines. I...
View full detailsCummins Fuel System Filter Kit CUMFS1009
The Cummins CUMFS1009 Fuel System Filter Kit is intended for servicing the fuel filtration system on compatible Cummins diesel engine applications....
View full detailsCummins Propane Solenoid Valve A121R
The Cummins A121R Propane Solenoid Valve is a replacement fuel shutoff/control solenoid valve for compatible Cummins Onan propane generator fuel sy...
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