MerCruiser Exhaust
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OEM MerCruiser Exhaust Y-Pipe Kit 98-8M0117124
Mercury Marine / Quicksilver
$1,034.00 $879.99OEM MerCruiser Exhaust Pipe Kit 98-8M0117124 For use with Silent Choice type exhaust systems. Also used to convert engines with thru transom exhaust to thru prop exhaust. Standard pipe on all thru prop exhaust gasoline sterndrive models...- Part Number:
- 710-98-8M0117124
- Availability:
- In Stock - Ships same or next business day.
$1,034.00 $879.99 -
OEM MerCruiser 305/350 HD Coated Exhaust Manifold & Riser Kit - 5.7 / 5.0 / 6.2 (1986-2002) 860246A15 807988A03
Mercury Marine / Quicksilver
$1,534.54 $1,389.99OEM MerCruiser HD(Hot dipped) Coated Exhaust Kit for 5.7 350 or the 5.0 305 Small block and 6.2 377 For MerCruiser center riser small block V8 engines approx 1986-2002 (if you have a 2002 or newer you may need dry joint exhaust. Please call us with...- Part Number:
- K-OEM350-HD
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- Small V8 (5.0, 5.7, 6.2)
- Generation:
- Wet Joint (86-2002)
$1,534.54 $1,389.99 -
OEM Quicksilver/Mercury V6/V8 Dry Joint Exhaust Riser 3" Spacer Kit (14 degree risers) (FWC Only) 864929A4
Mercury Marine / Quicksilver
$869.08 $729.99OEM Quicksilver/Mercury V6/V8 Dry Joint Exhaust Riser 3" Spacer Kit (14 degree risers) (FWC Only) For V6 and V8 engines with (14 degree risers)Will work with Dry Joint Exhaust only Includes: • Gaskets • 3 inch spacers •...- Part Number:
- 710-864929A4
- Availability:
- In Stock - Ships same or next business day.
$869.08 $729.99 -
Sold Out, please call for ETA.
OEM MerCruiser V6/V8 Dry Joint 4.7" Exhaust Riser/Spacer Kit 866208A02
Mercury Marine / Quicksilver
$734.79 $629.99OEM MerCruiser V6/V8 Dry Joint 4.7" Exhaust Riser/Spacer Kit 866208A02 Will work with Dry Joint Exhaust only Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be...- Part Number:
- 710-866208A02
- Availability:
- In Stock - Ships same or next business day.
$734.79 $629.99 -
OEM MerCruiser Exhaust Bellows Hose Clamp 710-54-815504372
Mercury Marine / Quicksilver
$15.90 $11.19OEM MerCruiser Exhaust Bellows Hose Clamp 710-54-815504372 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury parts are sold and priced EACH- Part Number:
- 710-54-815504372
- Availability:
- In Stock - Ships same or next business day.
$15.90 $11.19 -
OEM MerCruiser 5.7/350 EC Cat Manifold Port 879288A04 8m0103774 (2010+)
Mercury Marine / Quicksilver
$844.49 $749.99OEM MerCruiser 5.7/350 EC Cat Manifold Port 879288A04 8m0103774 (2010+) Exhaust manifold 8M0103774 is for the port side only on V-8 MerCruiser stern drive and inboard engines (3.5, 350 and 377 cid, model year 2008 and newer).- Part Number:
- 710-8M0103774
- Availability:
- In Stock - Ships same or next business day.
- MPN:
- 8M0103774
$844.49 $749.99 -
OEM MerCruiser 5.7/350 EC Cat Manifold Starboard 879288a01 8m0103773 (2010+)
Mercury Marine / Quicksilver
$844.49 $749.99OEM MerCruiser 5.7/350 EC Cat Manifold Starboard 879288a01 8m0103773 (2010+) Exhaust manifold 8M0103773 is for the starboard side only on V-8 MerCruiser stern drive and inboard engines (3.5, 350 and 377 cid, model year 2008 and newer).- Part Number:
- 710-8M0103773
- Availability:
- In Stock - Ships same or next business day.
- MPN:
- 8M0103773
$844.49 $749.99 -
Sierra MerCruiser 3" Exhaust Riser Elbow MC-20-55538 98504A3 18-1970-1 18-1970-2
Sierra
$342.89 $229.99Sierra replacement 3" Exhaust elbow for MerCruiser MerCruiser 175-205 GM 229/262 CID V6 (1983+) MerCruiser 200-320 GM 305/350/377 CID V8 Small Block (1983+) MerCruiser 330-370 GM 454/502 CID V8 Big Block (1981+) Comparable Part...- Part Number:
- 47-19702
- Availability:
- In Stock - Ships same or next business day.
- MPN:
- 18-19701
$342.89 $229.99 -
MerCruiser Down Elbows for 3 and 6 inch spacers 14801A1 14801A 1
Mercury Marine / Quicksilver
$624.43 $529.99MerCruiser Down Elbows for 3 and 6 inch spacers 14801A1 14801A 1 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury parts are sold and priced EACH- Part Number:
- 710-14801A1
- Availability:
- In Stock - Ships same or next business day.
$624.43 $529.99 -
MerCruiser EXHAUST FLAPPER (QUICKSILVER) 12644A1
Mercury Marine / Quicksilver
$42.99 $32.55MerCruiser EXHAUST FLAPPER (QUICKSILVER) 12644A1 Flapper and clamp included Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury parts are sold and...- Part Number:
- 710-12644A1
- Availability:
- In Stock - Ships same or next business day.
$42.99 $32.55 -
OEM MerCruiser Quicksilver Lower Exhaust Tube Y-Pipe Bellow 32-14358001 32-8M0199680
Mercury Marine / Quicksilver
$81.99 $69.99OEM MerCruiser EXHAUST BELLOWS (QUICKSILVER) 32-14358001 32-8M0199680 Exhaust bellows tube 14358001 is for MerCruiser stern drive installations. See your owner's manual or service manual for specific application and instructions.- Part Number:
- 710-32-8M0199680
- Availability:
- In Stock - Ships same or next business day.
$81.99 $69.99 -
OEM MerCruiser Quicksilver Upper Exhaust Tube Y-Pipe Bellow 32-44348001 32-8M0199681
Mercury Marine / Quicksilver
$84.25 $71.99OEM MerCruiser EXHAUST BELLOWS (QUICKSILVER) 32-44348001 32-8M0199681 Exhaust bellows tube 44348001 is for MerCruiser 120, 140 and select V-6 and V-8 MerCruiser stern drive engines. See your owner's manual or service manual for specific application...- Part Number:
- 710-32-8M0199681
- Availability:
- In Stock - Ships same or next business day.
$84.25 $71.99 -
OEM Quicksilver/Mercury Shutter Assembly - Pair 807166A3
Mercury Marine / Quicksilver
$116.99 $100.49OEM Quicksilver/Mercury Shutter Assembly -Pair 807166A3 Water shutter 807166A3 is For use on various and numerous MerCruiser stern drive installations. This shutter is 2.5 inches diameter at the cross pin. Check your owner's manual or parts manual...- Part Number:
- 710-807166A3
- Availability:
- In Stock - Ships same or next business day.
$116.99 $100.49 -
OEM MerCruiser 3.0 Exhaust Riser Elbow 12076A2
Mercury Marine / Quicksilver
$412.49 $334.99OEM MerCruiser 3.0 Exhaust Riser Elbow 12076A2 Exhaust Elbow: 3.0L/3.0LX 1995+,Fits MCM 2.5L & 3.0L/LX (1982 & newer); also MCM 470 (1977-1982) Alternate - SIE 19751 18-1975 47-19751 Please confirm fitment of MerCruiser parts with your serial...- Part Number:
- 710-12076A2
- Availability:
- In Stock - Ships same or next business day.
$412.49 $334.99 -
Sold Out, please call for ETA.
Sierra MerCruiser 2.5 3.0 Liter Exhaust Manifold 860235A04 18-1956-2 18-1956-3
Sierra
$683.39 $522.14MerCruiser 4 cylinder manifold exhaust kit by Sierra Fits most 2.5 & 3.0L earlier than 1990 Replaces: • MerCruiser part#: 860235A04 • Marine Power 600333 Ols • Sierra part#: 18-1956-2 superseded to New...- Part Number:
- 47-19563
- Availability:
- In Stock - Ships same or next business day.
$683.39 $522.14 -
Sold Out, please call for ETA.
Sierra MerCruiser 3.0 Exhaust Manifold 1990+ 806867A3 860235A03 18-1966 18-1966-1
Sierra
$651.39 $499.99MerCruiser EXHAUST MANIFOLD by Sierra Manifold for 3.0 Liter Engines 1990 and Newer using the "MERCARB" This has a single idle air adjusting screw Includes: • Gaskets • Pipe plugs • Fuel...- Part Number:
- 47-19661
- Availability:
- In Stock - Ships same or next business day.
$651.39 $499.99 -
Sierra MerCruiser 350 305 5.0 5.7 Dry Joint Exhaust Manifold 865735A02 18-1843
Sierra
$609.19 $459.99Replacement MerCruiser Dry Joint Manifold by Sierra Includes gasket for manifold to head and bolts. Dry Joint Style Exhaust Manifold for MerCruiser Replaces: • MerCruiser-865735A02, 865049T01, 864308T01 Use with: 18-1845 RISER, 18-0720...- Part Number:
- 47-1843
- Availability:
- In Stock - Ships same or next business day.
$609.19 $459.99 -
Sierra MerCruiser 5.7 350 / 5.0 305 V8 Exhaust Manifold & 3 inch Riser Kit 18-1953-2 18-1970-2
Sierra
$1,442.96 $999.99Sierra MerCruiser 5.7 350 V8 Center Riser Exhaust Manifold & Riser Kit Fits Applications: V-8 305, 350 & 377 Engines from Years 1984 and earlier with 3 inch riser outlets 2x Manifold 18-1953-2 Replaces: • MerCrusier: 87114, 87114A19,...- Part Number:
- k-sierra350-3
- Availability:
- In Stock - Ships same or next business day.
$1,442.96 $999.99 -
Sierra MerCruiser 7.4 454 502 Exhaust Manifold & Riser Kit 18-1957-1 18-1957-2 18-1976-2
Sierra
$1,303.16 $999.99Sierra MerCruiser 7.4 454 502 Big Block V8 Center Riser Exhaust Manifold & Riser Kit 2x Manifold 18-1957-1 SS to 18-1957-2 Replaces • Osco: 9011A • GLM: 51240 • MerCruiser: 89011A8 , 807078T08 ,...- Part Number:
- k-sierra454
- Availability:
- In Stock - Ships same or next business day.
$1,303.16 $999.99 -
On Sale
Sierra MerCruiser 5.7 350 / 5.0 305 / 6.2 377 V8 Exhaust Manifold & Riser Kit 18-1953-2 18-1976-2
Sierra
$1,059.96 $939.99Sierra MerCruiser 5.7 350 V8 Center Riser Exhaust Manifold & Riser Kit Fits Applications: V-8 305, 350 & 377 Engines from Years 1983-2002 (Port or Starboard Side) Will not work with Dry Joint! 2x Manifold 18-1953-2 Replaces: •...- Part Number:
- K-SIERRA350
- Availability:
- In Stock - Ships same or next business day.
$1,059.96 $939.99
MerCruiser Exhaust
If you want maximum performance and long-term reliability from your MerCruiser inboard engine, routine maintenance of your exhaust system is essential. Corrosion and normal wear can damage exhaust components, leading to poor performance or even serious engine issues. At PowerBoatSupply.com, you’ll find a wide selection of MerCruiser exhaust system parts—including exhaust manifolds, risers, bellows, and other replacement parts to keep your motor running at its best. We carry OEM MerCruiser parts as well as trusted aftermarket options from Sierra and other leading manufacturers.
MerCruiser Exhaust Risers
The exhaust riser is a critical component that should be inspected regularly as part of routine maintenance. At PowerBoatSupply.com, we stock the latest designs that efficiently collect hot gasses from the engine and cool them with a water-filled jacket. This process improves exhaust flow, boosts engine performance, and extends the lifespan of your motor.
MerCruiser Exhaust Manifolds and Components
Whether you need a new MerCruiser transom assembly, exhaust elbows, gaskets, or bolts, PowerBoatSupply.com is your one-stop shop for high-quality parts. From durable MerCruiser exhaust manifolds to complete MerCruiser outdrives, we provide everything you need for annual maintenance or complete rebuilds. With premium OEM and aftermarket options, you’ll spend less time in the shop and more time on the water. With over 35 years of experience in marine engine parts and service, we know the difference quality makes when you rely on your boat’s engine.
Find Quality MerCruiser Exhaust Parts
Shop our full inventory of MerCruiser exhaust components today and get the parts you need shipped fast, so your boat is always ready for the next adventure.