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Exhaust

Marine Exhaust Systems & Service Parts

Exhaust Manifolds, Risers, Elbows, Hoses, Mufflers & Hardware

Shop marine exhaust parts for inboard, sterndrive, diesel, and gasoline engine systems. Find manifolds, risers, elbows, spacers, gaskets, wet exhaust hose, clamps, mufflers, waterlocks, exhaust outlets, bellows, thru-hulls, insulation, and replacement hardware.

Shop Exhaust Parts Exhaust Manifolds Exhaust Hose
Fitment Check

Match engine make, model, serial range, cooling layout, hose diameter, gasket style, bolt pattern, and material before ordering exhaust parts.

Ask Parts Desk

Exhaust leaks, water intrusion, overheating, and corrosion can damage engines. Confirm fitment and inspect the whole exhaust path during service.

Find Exhaust Parts Faster

Search by Engine, Hose Size, Part Number, or Exhaust Component

Marine exhaust parts can vary by engine family, serial range, raw-water or closed-cooling layout, riser height, outlet angle, and hose diameter. Search by the existing part number whenever possible.

Fitment

Start With the Engine and Cooling Layout

Manifolds, risers, elbows, and gaskets can change by engine model, serial number, raw-water versus closed-cooling design, riser height, outlet angle, and replacement history.

Raw-Water Cooled Closed Cooling Spacers

Hose & Outlet Size

Measure Exhaust Hose Carefully

Wet exhaust hose is usually selected by inside diameter, bend radius, temperature rating, and system layout. Check the hose stamp, old hose size, muffler ports, elbow outlet, and transom outlet before ordering.

3 Inch Hose 4 Inch Hose 5 Inch Hose
HOT

Engine-Mounted Parts

Manifolds, risers, elbows, spacers, gaskets, plugs, bolts, and studs manage hot exhaust and cooling water at the engine.

WET

Wet Exhaust Runs

Hose, clamps, mufflers, waterlocks, outlets, and flappers route exhaust and cooling water safely out of the boat.

DRV

Sterndrive Exhaust

Bellows, tubes, boots, clamps, gaskets, and transom exhaust parts support sterndrive exhaust service.

Service & Inspection

Inspect for Corrosion, Leaks, Heat Damage, and Backflow Risk

Marine exhaust systems carry hot gas and cooling water. Rust streaks, salt trails, soft hose, cracked bellows, loose clamps, leaking gaskets, restricted elbows, and water intrusion symptoms should be addressed quickly.

Check manifolds and risersLook for corrosion, internal restriction, external leaks, gasket failure, overheating, or water intrusion signs.
Inspect hose runsReplace hose that is soft, blistered, cracked, burned, kinked, oil-soaked, or chafed.
Use proper clampsLarge exhaust hose often needs heavy-duty stainless or T-bolt clamps matched to the hose size.
Protect the engineWater entering cylinders through exhaust can cause severe engine damage, so geometry and backflow protection matter.

Related Engine Service Areas

Complete the Exhaust Service Job

Exhaust work often connects with cooling, hoses, clamps, gaskets, anodes, oils, and engine maintenance parts.

Belts, Hoses & ClampsHose, clamps, belts, and engine service support Thermostats & CoolingCooling parts that affect exhaust temperature and flow ImpellersRaw-water pump impellers and cooling service parts GasketsEngine, manifold, riser, elbow, and service gaskets Anodes & CorrosionCorrosion protection for engines, drives, shafts, and metals Oils & LubricantsEngine oil, gear oil, grease, and service fluids

FAQ

Marine Exhaust Questions

How do I identify the right exhaust manifold or riser?

Use the engine make, model, serial number, existing part number, cooling layout, outlet angle, riser height, and gasket pattern. Photos of the existing part can help narrow the search.

When should wet exhaust hose be replaced?

Replace hose that is cracked, soft, blistered, burned, kinked, oil-soaked, chafed, or no longer holds a clamp securely. Follow the hose maker's inspection and service guidance.

Why are exhaust gaskets so specific?

Gaskets must match the manifold, riser, spacer, cooling passage, bolt pattern, and engine design. The wrong gasket can cause leaks, overheating, or water intrusion.

Can Marisol help match exhaust parts?

Yes. Send the Parts Desk your engine model, serial number, photos, old part numbers, hose sizes, and a description of the exhaust part or symptom.

Ready to Service the Exhaust System?

Shop Marine Exhaust Manifolds, Risers, Elbows, Hoses, Mufflers & Hardware

Search by engine brand, serial range, part number, hose diameter, gasket style, cooling layout, or exhaust system component.

Shop Exhaust Parts Riser Gaskets Exhaust Bellows

Filters

Sierra - Exhaust Elbow Gasket - 18-0305-1

$0.00 - $0.00
$0.00
$18.87
$18.87 - $18.87
$18.87
Only 5 left!

The Sierra Marine 18-0305-1 Exhaust Elbow Gasket is an aftermarket marine exhaust gasket used to seal the joint between the exhaust manifold and ex...

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$0.00 - $0.00
$0.00
$18.87
$18.87 - $18.87
$18.87

PCM - Cover Drain Exhaust Gasket - 96331

$0.00 - $0.00
$0.00
$4.45
$4.45 - $4.45
$4.45
9 in stock

The PCM 96331 Cover Drain Exhaust Gasket is a marine exhaust sealing gasket used on Pleasurecraft Marine / PCM engine applications where the exhaus...

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$0.00 - $0.00
$0.00
$4.45
$4.45 - $4.45
$4.45
Sold out

Volvo Penta - Exhaust Elbow Gasket - 863353

$0.00 - $0.00
$0.00
$95.00
$95.00 - $95.00
$95.00
Out of stock

The Volvo Penta 863353 is a genuine OEM exhaust pipe elbow gasket used on select Volvo Penta heavy-duty marine diesel engines. This gasket seals th...

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$0.00 - $0.00
$0.00
$95.00
$95.00 - $95.00
$95.00
Sold out

Mercury MerCruiser Exhaust Hose - 32-90949T

$0.00 - $0.00
$0.00
$127.48
$127.48 - $127.48
$127.48
Only 1 left!

The Mercury MerCruiser Quicksilver Exhaust Hose 32-90949T is an OEM-style flexible exhaust tube used on select MerCruiser sterndrive and inboard en...

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$0.00 - $0.00
$0.00
$127.48
$127.48 - $127.48
$127.48

Mercury - Exhaust Manifold Gasket - 27-33395

$0.00 - $0.00
$0.00
$20.89
$20.89 - $20.89
$20.89
Only 4 left!

The Mercury Quicksilver Exhaust Manifold Gasket 27-33395 is an OEM-style sealing gasket used between the cylinder head and exhaust manifold on comp...

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$0.00 - $0.00
$0.00
$20.89
$20.89 - $20.89
$20.89

Volvo Penta Brass Pipe Plug 1/4 NPT 3850802

$15.70 - $15.70
$15.70
$15.70 - $15.70
$15.70
Only 1 left!

Volvo Penta 3850802 is a genuine OEM plug used in select Volvo Penta inlet and exhaust system applications. Current parts references place this par...

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$15.70 - $15.70
$15.70
$15.70 - $15.70
$15.70

Volvo Penta Turbocharger Exhaust Plane Gasket 22206133

$9.20 - $9.20
$9.20
$9.20 - $9.20
$9.20
Only 1 left!

Volvo Penta 22206133 is a genuine OEM plane gasket used in select Volvo Penta engine and turbocharger-related assemblies. Current dealer and catalo...

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$9.20 - $9.20
$9.20
$9.20 - $9.20
$9.20

Volvo Penta Exhaust Manifold 3847501

$655.00 - $655.00
$655.00
$655.00 - $655.00
$655.00
Only 2 left!

Volvo Penta 3847501 is a genuine OEM exhaust manifold used on Volvo Penta GM-based small block V8 marine engines. Current parts references consiste...

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$655.00 - $655.00
$655.00
$655.00 - $655.00
$655.00

Volvo Penta Exhaust Bellows Kit 3888916

$83.00 - $83.00
$83.00
$83.00 - $83.00
$83.00
Only 2 left!

Volvo Penta 3888916 is a genuine OEM exhaust bellows kit used in Volvo Penta sterndrive service. Current public Volvo Penta parts sources consisten...

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$83.00 - $83.00
$83.00
$83.00 - $83.00
$83.00

Volvo Penta Water & Exhaust Block-Off Kit 3862566

$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00
Only 2 left!

Volvo Penta 3862566 is a genuine OEM kit used in Volvo Penta sterndrive transom-shield and water/exhaust block-off service. The strongest current p...

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$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00

Volvo Penta Insulation 3817196

$393.00 - $393.00
$393.00
$393.00 - $393.00
$393.00
Only 1 left!

Volvo Penta 3817196 is a genuine OEM insulation component used in Volvo Penta diesel exhaust-system service. The strongest current public parts-dia...

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$393.00 - $393.00
$393.00
$393.00 - $393.00
$393.00

Volvo Penta Hose Connection 3583622

$93.00 - $93.00
$93.00
$93.00
$93.00 - $93.00
$93.00
Only 1 left!

Volvo Penta 3583622 is a genuine OEM hose connection used in Volvo Penta diesel inlet and exhaust system service. The strongest current public part...

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$93.00 - $93.00
$93.00
$93.00
$93.00 - $93.00
$93.00

Volvo Penta Hose Clamp 22274885

$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90
Only 2 left!

Volvo Penta 22274885 is a genuine OEM hose clamp used in Volvo Penta marine propulsion service. The strongest current public parts-diagram trail pl...

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$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90

Volvo Penta Hose 24509844

$243.00 - $243.00
$243.00
$243.00
$243.00 - $243.00
$243.00
Only 1 left!

Volvo Penta 24509844 is a genuine OEM hose used in Volvo Penta D4 and D6 raw-water cooling and exhaust-side service. Current Volvo Penta parts refe...

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$243.00 - $243.00
$243.00
$243.00
$243.00 - $243.00
$243.00

Volvo Penta Hose 23845352

$79.00 - $79.00
$79.00
$79.00
$79.00 - $79.00
$79.00
Only 2 left!

Volvo Penta 23845352 is a genuine OEM hose used in Volvo Penta diesel turbo and exhaust-side service. The strongest current public parts-diagram tr...

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$79.00 - $79.00
$79.00
$79.00
$79.00 - $79.00
$79.00

Volvo Penta Hose 23388896

$294.00 - $294.00
$294.00
$294.00
$294.00 - $294.00
$294.00
Only 2 left!

Volvo Penta 23388896 is a genuine OEM hose used in Volvo Penta D6 diesel inlet and exhaust system service. The strongest current public parts-diagr...

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$294.00 - $294.00
$294.00
$294.00
$294.00 - $294.00
$294.00

Volvo Penta Gasket Kit 3863191

$63.30 - $63.30
$63.30
$63.30
$63.30 - $63.30
$63.30
Only 1 left!

Volvo Penta 3863191 is a genuine OEM gasket kit used in Volvo Penta exhaust riser and elbow service. Current public parts references identify it as...

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$63.30 - $63.30
$63.30
$63.30
$63.30 - $63.30
$63.30

Volvo Penta Exhaust Elbow 3863189

$352.00 - $352.00
$352.00
$352.00
$352.00 - $352.00
$352.00
Only 3 left!

Volvo Penta 3863189 is a genuine exhaust elbow used on Volvo Penta gasoline sterndrive applications in the SX-A marine propulsion family. Current V...

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$352.00 - $352.00
$352.00
$352.00
$352.00 - $352.00
$352.00

Volvo Penta Exhaust Manifold Gasket 855967

$19.10 - $19.10
$19.10
$19.10
$19.10 - $19.10
$19.10
Only 4 left!

Volvo Penta 855967 is a genuine gasket used in the exhaust manifold sealing group on older Volvo Penta gasoline engines. Current references identif...

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$19.10 - $19.10
$19.10
$19.10
$19.10 - $19.10
$19.10

Volvo Penta Exhaust Riser 856891

$334.00 - $334.00
$334.00
$334.00
$334.00 - $334.00
$334.00
Only 1 left!

Volvo Penta 856891 is a genuine exhaust riser used on older Volvo Penta GM-based V8 marine applications with the center-riser exhaust layout. Curre...

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$334.00 - $334.00
$334.00
$334.00
$334.00 - $334.00
$334.00

Volvo Penta Gasket 20557208

$7.90 - $7.90
$7.90
$7.90
$7.90 - $7.90
$7.90
Only 4 left!

Volvo Penta 20557208 is a genuine OEM gasket used in selected Volvo Penta intake and exhaust system applications. Volvo Penta's official parts shop...

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$7.90 - $7.90
$7.90
$7.90
$7.90 - $7.90
$7.90

Volvo Penta Exhaust Manifold Anode 21403633

$33.00 - $33.00
$33.00
$33.00
$33.00 - $33.00
$33.00
Only 4 left!

Volvo Penta 21403633 is a genuine OEM aluminum anode used as an exhaust manifold anode on selected Volvo Penta gasoline marine engines. Volvo Penta...

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$33.00 - $33.00
$33.00
$33.00
$33.00 - $33.00
$33.00

Volvo Penta Connector 21450768

$51.70 - $51.70
$51.70
$51.70
$51.70 - $51.70
$51.70
Only 4 left!

Volvo Penta 21450768 is a genuine OEM connector used in the inlet and exhaust system on selected Volvo Penta marine diesel applications. Volvo Pent...

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$51.70 - $51.70
$51.70
$51.70
$51.70 - $51.70
$51.70

Volvo Penta Exhaust Elbow 21751640

$482.00 - $482.00
$482.00
$482.00
$482.00 - $482.00
$482.00
Only 4 left!

Volvo Penta 21751640 is a genuine OEM exhaust pipe elbow / wet exhaust elbow used in selected Volvo Penta marine diesel exhaust systems. Current pa...

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$482.00 - $482.00
$482.00
$482.00
$482.00 - $482.00
$482.00

Yanmar OEM Exhaust Manifold Gasket 4-Inch 119175-33380

$10.75 - $10.75
$10.75
$10.75
$10.75 - $10.75
$10.75
Only 1 left!

Yanmar OEM exhaust manifold gasket (part #119175-33380), 4-inch bore. Genuine replacement gasket for the exhaust manifold connection on Yanmar mari...

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$10.75 - $10.75
$10.75
$10.75
$10.75 - $10.75
$10.75

Yanmar OEM Exhaust Manifold Gasket 4-Inch 119175-33370

$10.00 - $10.00
$10.00
$10.00
$10.00 - $10.00
$10.00
Only 1 left!

Yanmar OEM exhaust manifold gasket (part #119175-33370), 4-inch bore. Genuine replacement gasket for the exhaust manifold connection on Yanmar mari...

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$10.00 - $10.00
$10.00
$10.00
$10.00 - $10.00
$10.00

PCM Catalytic Converter Corner/Crossover Gasket RM0299

$10.94 - $10.94
$10.94
$10.94
$10.94 - $10.94
$10.94
Only 2 left!

Seal the exhaust system connection and prevent leaks with the PCM Catalytic Converter Corner / Crossover Gasket RM0299. This genuine Pleasurecraft ...

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$10.94 - $10.94
$10.94
$10.94
$10.94 - $10.94
$10.94

PCM Catalytic Converter Corner/Crossover Gasket RM0286

$93.53 - $93.53
$93.53
$93.53
$93.53 - $93.53
$93.53
Only 2 left!

Seal the exhaust system connection and prevent leaks with the PCM Catalytic Converter Corner / Crossover Gasket RM0286. This genuine Pleasurecraft ...

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$93.53 - $93.53
$93.53
$93.53
$93.53 - $93.53
$93.53

PCM Catalytic Converter Corner/Manifold Gasket RM0285

$10.37 - $10.37
$10.37
$10.37
$10.37 - $10.37
$10.37
Only 2 left!

Seal the connection between the exhaust manifold and catalytic converter with the PCM Catalytic Converter Corner / Manifold Gasket RM0285. This gen...

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$10.37 - $10.37
$10.37
$10.37
$10.37 - $10.37
$10.37

Indmar Big Block Exhaust Riser Gasket - Marine Engine Seal

$8.63 - $8.63
$8.63
$8.63
$8.63 - $8.63
$8.63
Only 3 left!

Premium OEM exhaust riser gasket engineered for Indmar big block marine engines. This high-temperature gasket creates a reliable seal between the e...

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$8.63 - $8.63
$8.63
$8.63
$8.63 - $8.63
$8.63