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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.

Shop Fuel & Air Systems Fuel/Water Separators Fuel Pumps
Fitment Check

Match engine make, model, serial range, fuel type, hose rating, filter thread, flow direction, pressure, and mounting style before ordering.

Ask Parts Desk

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.

Quick ShopTop OEMFitmentSystemsServiceFAQFlame ArrestorsFuel Hose

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.

Gasoline FuelDiesel FuelFuel Connectors

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.

PMP

Fuel Delivery

Pumps, hoses, fittings, tanks, caps, vents, regulators, and connectors move fuel safely from tank to engine.

FIL

Filtration

Fuel filters and water separators protect pumps, injectors, carburetors, and engines from water and debris.

AIR

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Inspect hosesLook for cracking, swelling, stiffness, chafe, loose clamps, and outdated fuel line ratings.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.

Shop Fuel & Air SystemsFuel FiltersFuel Hose

Filters

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Mercury MerCruiser Fuel Pressure Regulator Kit 861126A1

$295.06 - $295.06
$295.06
$295.06
$295.06 - $295.06
$295.06
Only 1 left!

Mercury MerCruiser Quicksilver 861126A1 is a genuine OEM fuel pressure regulator used on a range of MerCruiser MPI sterndrive and inboard engines. ...

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$295.06 - $295.06
$295.06
$295.06
$295.06 - $295.06
$295.06

Volvo Penta Idle Air Control Valve 3843751

$504.00 - $504.00
$504.00
$504.00
$504.00 - $504.00
$504.00
Only 1 left!

Volvo Penta 3843751 is an idle air control valve used in select Volvo Penta gasoline engine applications. Based on the part naming you provided, th...

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$504.00 - $504.00
$504.00
$504.00
$504.00 - $504.00
$504.00

Volvo Penta Water-in-Fuel Sensor 3808616 – D3 / D4 / D6 Diesel

$181.00 - $181.00
$181.00
$181.00
$181.00 - $181.00
$181.00
Only 1 left!

Volvo Penta 3808616 is a genuine OEM sensor used in select Volvo Penta diesel fuel-system applications. Current parts references place this part in...

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$181.00 - $181.00
$181.00
$181.00
$181.00 - $181.00
$181.00

Volvo Penta Fuel Line O-Ring 3850424

$4.20 - $4.20
$4.20
$4.20 - $4.20
$4.20
Only 3 left!

Volvo Penta 3850424 is a genuine OEM O-ring used in select Volvo Penta fuel-system applications. Current parts references consistently identify thi...

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$4.20 - $4.20
$4.20
$4.20 - $4.20
$4.20

Volvo Penta Intermediate Lever 3580375

$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
Only 1 left!

Volvo Penta 3580375 is a genuine OEM intermediate lever used in Volvo Penta diesel fuel-system regulation service. The strongest current public par...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Volvo Penta Hose Nipple 3825000

$24.30 - $24.30
$24.30
$24.30
$24.30 - $24.30
$24.30
Only 1 left!

Volvo Penta 3825000 is a genuine OEM hose nipple used in Volvo Penta fuel-system service. The strongest current public parts-diagram trail places t...

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$24.30 - $24.30
$24.30
$24.30
$24.30 - $24.30
$24.30

Volvo Penta Hose 3860590

$11.40 - $11.40
$11.40
$11.40
$11.40 - $11.40
$11.40
Only 1 left!

Volvo Penta 3860590 is a genuine OEM hose used in Volvo Penta gasoline-engine cooling and fuel-system service. The strongest current public applica...

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$11.40 - $11.40
$11.40
$11.40
$11.40 - $11.40
$11.40

Volvo Penta Grommet 3858345

$37.30 - $37.30
$37.30
$37.30
$37.30 - $37.30
$37.30
Only 1 left!

Volvo Penta 3858345 is a genuine OEM grommet used in Volvo Penta fuel-system service. The strongest current public application trail places this gr...

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$37.30 - $37.30
$37.30
$37.30
$37.30 - $37.30
$37.30

Volvo Penta Nozzle 829909

$308.00 - $308.00
$308.00
$308.00
$308.00 - $308.00
$308.00
Only 1 left!

Volvo Penta 829909 is a genuine fuel injection nozzle used on selected classic Volvo Penta marine diesel engines. Current Volvo Penta parts listing...

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$308.00 - $308.00
$308.00
$308.00
$308.00 - $308.00
$308.00

Volvo Penta Retaining Clamp 31272772

$88.00 - $88.00
$88.00
$88.00
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$88.00
Only 5 left!

Volvo Penta 31272772 is a genuine OEM retaining clamp used in Volvo Penta fuel-system applications. Volvo Penta's official parts catalog identifies...

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$88.00 - $88.00
$88.00
$88.00
$88.00 - $88.00
$88.00

Mercury Water-Separating Fuel Filter 802893T

$21.06 - $21.06
$21.06
$21.06
$21.06 - $21.06
$21.06
Only 4 left!

Mercury 802893T is a genuine OEM water-separating fuel filter for remote-mount filter systems. Mercury describes it as the replacement filter canis...

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$21.06 - $21.06
$21.06
$21.06
$21.06 - $21.06
$21.06

Mercury Oil Reservoir Connector 18922

$49.34 - $49.34
$49.34
$49.34 - $49.34
$49.34
Only 1 left!

Mercury 18922 is a genuine OEM connector commonly listed in Mercury catalog format as 22-18922. Current dealer listings identify it as an oil reser...

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$49.34 - $49.34
$49.34
$49.34 - $49.34
$49.34

Mercury Gasket 16326

$14.71 - $14.71
$14.71
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$14.71
Only 1 left!

Mercury 16326 is a genuine OEM gasket commonly identified as 27-16326, and catalog listings describe it as a pump body gasket used in selec...

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$14.71 - $14.71
$14.71
$14.71 - $14.71
$14.71

Mercury MerCruiser Quicksilver Reducing Fitting 88517

$28.94 - $28.94
$28.94
$28.94 - $28.94
$28.94
Only 4 left!

Mercury 88517 is a genuine OEM reducing fitting used in selected Mercury MerCruiser fuel and engine-system applications. Dealer listings identify i...

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$28.94 - $28.94
$28.94
$28.94 - $28.94
$28.94

Mercury Fuel Pump Diaphragm 89031A3 (Pack of 2)

$26.95 - $26.95
$26.95
$26.95 - $26.95
$26.95
Only 1 left!

Mercury 89031A3 is a genuine OEM fuel pump diaphragm kit for select Mercury and Mariner outboard applications. Mercury parts sources identify it as...

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$26.95 - $26.95
$26.95
$26.95 - $26.95
$26.95
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Mercury MerCruiser Carburetor Adaptor Kit 807726A2

$121.52 - $121.52
$121.52
$121.52 - $121.52
$121.52
Out of stock

Restore proper carburetor fitment on your MerCruiser carbureted engine with the Mercury MerCruiser Carburetor Adaptor Kit 807726A2 — a genuine OEM ...

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$121.52 - $121.52
$121.52
$121.52 - $121.52
$121.52
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Volvo Penta Fuel Filter Insert – 1147147

$42.50 - $42.50
$42.50
$42.50
$42.50 - $42.50
$42.50
Only 4 left!

Volvo Penta 1147147 is a genuine OEM fuel filter insert used in Volvo Penta fuel filter and water separator applications. Public Volvo Penta and de...

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$42.50 - $42.50
$42.50
$42.50
$42.50 - $42.50
$42.50

Mercury Fuel Pump Assembly – 861155A3

$1,005.28 - $1,005.28
$1,005.28
$1,005.28
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$1,005.28
Only 1 left!

Mercury MerCruiser Quicksilver 861155A3 is a genuine OEM low-pressure electric fuel pump assembly used on select MerCruiser sterndrive and inboard ...

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$1,005.28 - $1,005.28
$1,005.28
$1,005.28
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$1,005.28

Seachoice Yamaha 1/4" NPT Male Fuel Connector SCE-04075

$14.43 - $14.43
$14.43
$14.43
$14.43 - $14.43
$14.43
Only 1 left!

Seachoice SCE-04075 male fuel line connector, 1/4" NPT, compatible with Yamaha outboard fuel systems. Direct replacement for Yamaha-style fuel line...

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$14.43 - $14.43
$14.43
$14.43
$14.43 - $14.43
$14.43

Yanmar Fuel Filter – 129574-55711

$0.00 - $0.00
$0.00
$66.58
$66.58 - $66.58
$66.58
Only 1 left!

Yanmar OEM Fuel Filter – 129574-55711Genuine Yanmar OEM fuel filter with water separation for marine diesel engines. Removes contaminants and water...

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$0.00 - $0.00
$0.00
$66.58
$66.58 - $66.58
$66.58

Yanmar OEM Fuel Filter Strainer Element 1GM 2GM 3GM Series 165000-13840

$18.65 - $18.65
$18.65
$18.65
$18.65 - $18.65
$18.65
Only 1 left!

The Yanmar 165000-13840 is a genuine OEM fuel filter strainer element for select Yanmar marine diesel engines. It is used in the fuel strainer asse...

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$18.65 - $18.65
$18.65
$18.65
$18.65 - $18.65
$18.65

Yanmar OEM Fuel Filter Water Separator Assembly 41650-502330-12

$85.21 - $85.21
$85.21
$85.21
$85.21 - $85.21
$85.21
in stock

The Yanmar 41650-502330-12 is a genuine OEM fuel filter / water separator assembly for select Yanmar marine diesel applications. Current parts refe...

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$85.21 - $85.21
$85.21
$85.21
$85.21 - $85.21
$85.21
Sold out

Yanmar OEM Fuel Filter Element 8LV Series 119798-55110

$241.88 - $241.88
$241.88
$241.88
$241.88 - $241.88
$241.88
Out of stock

The Yanmar 119798-55110 is a genuine OEM fuel filter element for select 8LV series marine diesel engines. Current parts references identify it as E...

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$241.88 - $241.88
$241.88
$241.88
$241.88 - $241.88
$241.88
Sold out

Volvo Penta Check Valve 872438

$57.30 - $57.30
$57.30
$57.30
$57.30 - $57.30
$57.30
Only 1 left!

The Volvo Penta 872438 is a genuine OEM non-return (check) valve, commonly used in sterndrive exhaust systems to prevent water from flowing back in...

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$57.30 - $57.30
$57.30
$57.30
$57.30 - $57.30
$57.30

Mercury MerCruiser Quicksilver Carburetor Float Kit 8M0120190

$35.25 - $35.25
$35.25
$35.25
$35.25 - $35.25
$35.25
Only 4 left!

Mercury / MerCruiser Quicksilver Carburetor Float Kit — 8M0120190 The Mercury Quicksilver 8M0120190 is a genuine OEM carburetor float kit used in ...

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$35.25 - $35.25
$35.25
$35.25
$35.25 - $35.25
$35.25

Mercury MerCruiser Quicksilver Quickleen Fuel Treatment 8M0048211

$23.29 - $23.29
$23.29
$23.29
$23.29 - $23.29
$23.29
in stock

Mercury / MerCruiser Quicksilver Quickleen Fuel Treatment — 8M0048211 The Mercury Quicksilver Quickleen 8M0048211 is an OEM engine and fuel system...

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$23.29 - $23.29
$23.29
$23.29
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$23.29

Mercury MerCruiser Quicksilver Fuel Pump Kit 892267A51

$926.01 - $926.01
$926.01
$926.01
$926.01 - $926.01
$926.01
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Pump Kit – 892267A51 Restore proper fuel delivery and engine performance with the genuine Mercury Marine ...

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$926.01 - $926.01
$926.01
$926.01
$926.01 - $926.01
$926.01

Mercury MerCruiser Quicksilver Fuel Filter 879885Q

$13.12 - $13.12
$13.12
$13.12
$13.12 - $13.12
$13.12
Only 3 left!

Mercury 879885Q is a genuine Quicksilver under-cowl in-line fuel filter for selected Mercury and Mariner outboards. Mercury describes it as a r...

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$13.12 - $13.12
$13.12
$13.12
$13.12 - $13.12
$13.12

Mercury MerCruiser Quicksilver Fuel Filter 879885K

$26.82 - $26.82
$26.82
$26.82
$26.82 - $26.82
$26.82
Only 3 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 879885K Maintain clean fuel delivery and protect your engine with the genuine Mercury Marine / Q...

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$26.82 - $26.82
$26.82
$26.82
$26.82 - $26.82
$26.82

Mercury MerCruiser Quicksilver Fuel Pump Kit 866170A01

$565.35 - $565.35
$565.35
$565.35
$565.35 - $565.35
$565.35
Only 1 left!

Mercury MerCruiser / Quicksilver Fuel Pump Kit – 866170A01 Restore reliable fuel delivery with the genuine Mercury Marine / Quicksilver 866170A01 F...

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$565.35 - $565.35
$565.35
$565.35
$565.35 - $565.35
$565.35

Mercury MerCruiser Quicksilver Fuel Filter 864572

$103.40 - $103.40
$103.40
$103.40
$103.40 - $103.40
$103.40
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 864572 Maintain clean fuel delivery and protect your engine’s fuel system with the genuine Mercury M...

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$103.40 - $103.40
$103.40
$103.40
$103.40 - $103.40
$103.40

Mercury MerCruiser Quicksilver Fuel Filter 834011133

$17.12 - $17.12
$17.12
$17.12
$17.12 - $17.12
$17.12
Only 1 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 834011133 Maintain clean fuel delivery and protect your engine with the genuine Mercury Marine / Qui...

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$17.12 - $17.12
$17.12
$17.12
$17.12 - $17.12
$17.12

Mercury MerCruiser Quicksilver Fuel Filter 53336T

$16.33 - $16.33
$16.33
$16.33
$16.33 - $16.33
$16.33
Only 3 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 53336T Maintain clean fuel delivery and protect your carburetor with the genuine Mercury Ma...

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$16.33 - $16.33
$16.33
$16.33
$16.33 - $16.33
$16.33

Mercury MerCruiser Quicksilver Fuel Filter 53336Q

$16.00 - $16.00
$16.00
$16.00
$16.00 - $16.00
$16.00
Only 4 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 53336Q Maintain clean fuel flow and reliable engine performance with the genuine Mercury Marine / Qu...

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$16.00 - $16.00
$16.00
$16.00
$16.00 - $16.00
$16.00

Mercury MerCruiser Quicksilver Fuel Filter 8M0157616

$60.86 - $60.86
$60.86
$60.86
$60.86 - $60.86
$60.86
Only 4 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 8M0157616 Protect your engine from fuel contamination with the genuine Mercury Marine / Quicksilver ...

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$60.86 - $60.86
$60.86
$60.86
$60.86 - $60.86
$60.86

Mercury Outboard Water Separating Fuel Filter Kit 18458Q4

$48.39 - $48.39
$48.39
$48.39
$48.39 - $48.39
$48.39
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 18458Q4 Protect your engine from fuel contamination with the genuine Mercury Marine / Quicksilver 18...

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$48.39 - $48.39
$48.39
$48.39
$48.39 - $48.39
$48.39

Mercury MerCruiser Quicksilver Fuel Filter 805406

$10.31 - $10.31
$10.31
$10.31
$10.31 - $10.31
$10.31
Only 1 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 805406 Maintain clean fuel delivery and protect critical engine components with the genuine Mercury ...

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$10.31 - $10.31
$10.31
$10.31
$10.31 - $10.31
$10.31

Mercury MerCruiser Quicksilver Carburetor Repair Kit 804844002

$144.97 - $144.97
$144.97
$144.97
$144.97 - $144.97
$144.97
Only 1 left!

Mercury MerCruiser Quicksilver 804844002 is a genuine carburetor repair kit for select MerCruiser engines using the newer MerCarb two-barrel carbur...

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$144.97 - $144.97
$144.97
$144.97
$144.97 - $144.97
$144.97

Mercury MerCruiser Quicksilver Fuel Filter 802893Q01

$24.74 - $24.74
$24.74
$24.74
$24.74 - $24.74
$24.74
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 802893Q01 Protect your engine from fuel contamination with the genuine Mercury Marine / Quicksilver ...

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$24.74 - $24.74
$24.74
$24.74
$24.74 - $24.74
$24.74

Mercury MerCruiser Quicksilver Fuel Pump Rod 35377

$71.41 - $71.41
$71.41
$71.41
$71.41 - $71.41
$71.41
Only 1 left!

Maintain reliable fuel delivery with the genuine Mercury Marine / Quicksilver 35377 Fuel Pump Rod. This OEM push rod is used in engines equipped wi...

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$71.41 - $71.41
$71.41
$71.41
$71.41 - $71.41
$71.41

Mercury MerCruiser Quicksilver Fuel System Connector 8M2010476

$13.04 - $13.04
$13.04
$13.04
$13.04 - $13.04
$13.04
Only 4 left!

MerCruiser OEM connector fitting used in fuel module and fuel system assemblies on various MerCruiser engines. This precision-engineered component ...

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$13.04 - $13.04
$13.04
$13.04
$13.04 - $13.04
$13.04

Mercury MerCruiser Fuel Pump - 8M0112244

$119.99 - $119.99
$119.99
$119.99
$119.99 - $119.99
$119.99
Only 4 left!

Mercury MerCruiser / Quicksilver Fuel Pump – 8M0112244 Maintain reliable fuel delivery and engine performance with the genuine Mercury Marine / Qui...

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$119.99 - $119.99
$119.99
$119.99
$119.99 - $119.99
$119.99

Mercury MerCruiser Fuel Cooler Kit - 8M0125846

$1,542.84 - $1,542.84
$1,542.84
$1,542.84
$1,542.84 - $1,542.84
$1,542.84
Only 1 left!

Mercury MerCruiser / Quicksilver Fuel Cooler Kit – 8M0125846 Maintain proper fuel temperature and reliable engine performance with the genuine Merc...

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$1,542.84 - $1,542.84
$1,542.84
$1,542.84
$1,542.84 - $1,542.84
$1,542.84

Mercury MerCruiser Fuel Filter - 898101093

$98.50 - $98.50
$98.50
$98.50
$98.50 - $98.50
$98.50
Only 1 left!

Premium OEM Mercury MerCruiser fuel filter for marine engine fuel systems. This high-quality filter ensures clean fuel delivery, protecting your en...

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$98.50 - $98.50
$98.50
$98.50
$98.50 - $98.50
$98.50

Mercury MerCruiser Fuel Filter - 8M0046752

$27.66 - $27.66
$27.66
$27.66
$27.66 - $27.66
$27.66
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 8M0046752 Maintain clean fuel delivery and protect your engine with the genuine Mercury Marine / Qui...

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$27.66 - $27.66
$27.66
$27.66
$27.66 - $27.66
$27.66

Mercury MerCruiser Fuel Filter Kit - 8M0088825

$145.33 - $145.33
$145.33
$145.33
$145.33 - $145.33
$145.33
Only 4 left!

Mercury MerCruiser / Quicksilver Fuel Filter Kit – 8M0088825 Maintain clean fuel delivery and protect your outboard engine with the genuine Mercury...

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$145.33 - $145.33
$145.33
$145.33
$145.33 - $145.33
$145.33

Mercury MerCruiser Fuel Filter - 8M0090809

$10.89 - $10.89
$10.89
$10.89
$10.89 - $10.89
$10.89
Only 2 left!

Mercury MerCruiser / Quicksilver Fuel Filter – 8M0090809 Maintain clean fuel delivery and protect your engine with the genuine Mercury Marine / Qui...

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$10.89 - $10.89
$10.89
$10.89
$10.89 - $10.89
$10.89
Sold out

Mercury MerCruiser Fuel Filter - 8M0093688

$93.62 - $93.62
$93.62
$93.62
$93.62 - $93.62
$93.62
Out of stock

Mercury MerCruiser / Quicksilver Fuel Filter – 8M0093688 Maintain clean fuel delivery and protect your engine with the genuine Mercury Marine / Qui...

View full details
$93.62 - $93.62
$93.62
$93.62
$93.62 - $93.62
$93.62
Sold out