MerCruiser Exhaust
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OEM MerCruiser 5.0/5.7/6.2 350 Exhaust Manifold 860246Q11 Replaces 860246A10 860246a15 860246-c
Mercury Marine / Quicksilver
$393.25 $336.99OEM MerCruiser 5.0/5.7/6.2 350 Exhaust Manifold 860246Q11 Replaces 860246A10 860246a15 860246-c Exhaust manifold 860246Q11 is for use on the port or starboard (left or right) side of V-8 MerCruiser stern drive and inboard engines made by General...- Part Number:
- 710-860246Q11
- Availability:
- In Stock - Ships same or next business day.
$393.25 $336.99 -
OEM MerCruiser Exhaust Riser Spacer Kit 3" 93320A13 (4x full flow gaskets)
Mercury Marine / Quicksilver
$470.50 $470.49NEW OEM MerCruiser 3 inch spacer kit Exhaust riser kit 93320A13 is for use on MerCruiser V-6 TBI stern drive engines with 2-piece exhaust manifolds (serial number 0M614999 and below). Will also fit on MerCruiser stern drive and inboard tow sports V-8...- Part Number:
- 710-93320A13
- Availability:
- In Stock - Ships same or next business day.
$470.50 $470.49 -
OEM MerCruiser 454 /502/7.4 E-Coated Exhaust Manifold 807078T10 807078T08
Mercury Marine / Quicksilver
$416.58 $356.99OEM MerCruiser 454 / 502 / 7.4 Manifold 807078T08 OEM MerCruiser E-Coated Exhaust Manifold Exhaust manifold 807078T08 is for use on the port or starboard (left or right) side of V-8 MerCruiser engines made by General Motors. It fits 454 or 502 cid...- Part Number:
- 710-807078T08
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- E-Coated
$416.58 $356.99 -
OEM MerCruiser 4.3 V6 Ceramic Coated Exhaust Manifold 99745 99746A17
Mercury Marine / Quicksilver
$396.92 $309.78OEM MerCruiser 4.3 V6 Ceramic Coated Exhaust Manifold 99745 99746A17 Exhaust manifold 99746A17 is for use on the port or starboard (left or right) side of V-6 (220 and 262 cid) MerCruiser stern drive and inboard engines (model year 1985...- Part Number:
- 710-99746A17
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$396.92 $309.78 -
OEM MerCruiser 4.3 Dry Joint Exhaust Manifold (2002+) 864612c 864612T01
Mercury Marine / Quicksilver
$472.07 $471.99OEM MerCruiser 4.3 Dry Joint Exhaust Manifold (2002+) 864612T01 Exhaust manifold 834612T01 is for V-6 MerCruiser stern drive and inboard engines made by General Motors with dry joint exhaust systems (serial number 0M615000 and up, model year 2002 and...- Part Number:
- 710-864612T01
- Availability:
- In Stock - Ships same or next business day.
$472.07 $471.99 -
OEM MerCruiser 4" Ceramic Coated Riser/Elbow 807988A03
Mercury Marine / Quicksilver
$334.75 $286.99OEM MerCruiser 4" Ceramic Coated Riser/Elbow 807988A03 Exhaust elbow 807988A03 is for use on V-6 and V-8 MerCruiser stern drive or inboard engines made by General Motors having a center rise outlet exhaust manifold (model year 2002 and older). It...- Part Number:
- 710-807988A03
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$334.75 $286.99 -
Sierra MerCruiser Big Block V8 Exhaust Manifold 7.4 454 502 807078t10 807078t08 18-19571 18-1957-2
Sierra
$375.19 $272.47Sierra Replacement Manifold Kit for MerCruiser Big Block V8 454 / 502 Engines 18-1957-2 Comparable Part Numbers: • Osco: 9011A • GLM: 51240 • MerCruiser: 89011A8 , 807078T08 , 807078T10 ,...- Part Number:
- 47-19572
- Availability:
- In Stock - Ships same or next business day.
$375.19 $272.47 -
Sierra MerCruiser 3.0 Exhaust Manifold 1990+ 806867A3 860235A03 18-1966 18-1966-1
Sierra
$633.49 $472.75MerCruiser 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.
$633.49 $472.75 -
Sierra MerCruiser 4.3 Liter V6 Exhaust Manifold 99746A17 9975 18-19521
Sierra
$377.79 $273.91Sierra 18-1952-1 Replacement Exhaust Manifold Kit For MerCruiser V6 4.3 Liter 02 and older engines Will not work for dry joint systems Kit Contains: • 1x Exhaust Manifold • 1x Mounting Package • 1x...- Part Number:
- 47-19521
- Availability:
- In Stock - Ships same or next business day.
$377.79 $273.91 -
OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow 864591T02
Mercury Marine / Quicksilver
$451.36OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow 864591T02 These Will only work with Dry Joint systems! Exhaust elbow 864591T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust...- Part Number:
- 710-864591T02
- Availability:
- In Stock - Ships same or next business day.
$451.36 -
OEM MerCruiser 4" Dry Joint 7 Degree Riser/Elbow 864309T02
Mercury Marine / Quicksilver
$422.99 $398.99OEM 7 Degree Dry Joint Riser Exhaust elbow 864309T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust manifold (model year 2002 through 2004, serial number 0M600000 through 0W309999). It has a 4"...- Part Number:
- 710-864309T02
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$422.99 $398.99 -
OEM MerCruiser 5.0/5.7 Ceramic Coated Exhaust Manifold 860246A15
Mercury Marine / Quicksilver
$371.36OEM MerCruiser 5.0 or 5.7 Exhaust Manifold Ceramic Coated 860246A15 Exhaust manifold 860246A15 is for use on the port or starboard (left or right) side of V-8 MerCruiser stern drive and inboard engines made by General Motors. It fits 305, 350 and 377...- Part Number:
- 710-860246A15
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$371.36 -
Sierra MerCruiser 350 305 5.0 5.7 Dry Joint Exhaust Manifold 865735A02 18-1843
Sierra
$608.59 $427.39Replacement 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.
$608.59 $427.39 -
Sierra Marine "14 DEGREE" DRY JOINT MerCruiser Riser Elbow 864591T02 18-1845
Sierra
$462.99 $322.2614 degree Riser 18-1845 Replaces: • Barr: MC-2-0864591 • MerCruiser: 864591T02 Includes bolts- Part Number:
- 47-1845
- Availability:
- In Stock - Ships same or next business day.
$462.99 $322.26 -
OEM Mercury MerCruiser 496 6" Spacer Riser Block 866768T 8M0124066
Mercury Marine / Quicksilver
$551.36 $499.99OEM MerCruiser 496 6" Spacer / Riser Block Old Part Number: 866768T New Part Number: 8M0124066 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our...- Part Number:
- MM-8M0124066
- Availability:
- See Special Order Details
$551.36 $499.99 -
OEM MerCruiser 3.0 Exhaust Riser Elbow 12076A2
Mercury Marine / Quicksilver
$412.58 $321.06OEM 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.
$412.58 $321.06 -
Sierra MerCruiser 2.5 3.0 Liter Exhaust Manifold 860235A04 18-1956-2 18-1956-3
Sierra
$703.79 $458.54MerCruiser 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.
$703.79 $458.54 -
Sierra MerCruiser Dry Joint 4.3 V6 Exhaust Manifold 18-1842 864612T01
Sierra
$470.49 $333.73Replaces Mercruiser 864612T01 Application V6 Exhaust Manifold (Dry Joint) 4.3L Alpha/Bravo (02 and newer w/o engine catalyst)- Part Number:
- 47-1842
- Availability:
- In Stock - Ships same or next business day.
$470.49 $333.73 -
OEM MerCruiser 4.3 V6 1-Piece to 2-Piece Conversion Kit 1996 + 864293a02
Mercury Marine / Quicksilver
$391.58 $299.94CONVERSION KIT 864293a02 Includes: • 2x upper rubber tube (elbow to intermediate elbow) - 32-44358001 • 2x lower rubber tube (for original Y pipe) 32-807458T • 2x lower rubber tube (for New style Y...- Part Number:
- 710-864293A02
- Availability:
- In Stock - Ships same or next business day.
$391.58 $299.94 -
OEM MerCruiser EC "No Rise" Exhaust Elbow/Riser Port 8M0154270
Mercury Marine / Quicksilver
$508.50 $451.14Port side, Fits 2008 and newer MCM/MIE V-6 & V-8 (305, 350 & 377 cid) EC engines. Note: This elbow does NOT include an elbow gasket for FWC engines. The FWC elbow gasket 27-8M2004606 will need to be ordered separately- Part Number:
- 710-8M0154270
- Availability:
- In Stock - Ships same or next business day.
$508.50 $451.14
If you want maximum performance over decades of use from your MerCruiser inboard engine, routine maintenance on your exhaust system is essential. Corrosion, plus the normal wear and tear of use, can damage your exhaust system, which could lead to poor performance and even serious engine problems. At NuWave Marine, you’ll find a large selection of MerCruiser exhaust system parts, including MerCruiser exhaust manifolds, risers, bellows, and every other replacement part you need to keep your motor in top shape. We carry OEM parts, as well as high-quality parts by Sierra and other leading names.
MerCruiser Exhaust Riser
The exhaust riser is another key component that needs to be inspected as part of routine maintenance. At NuWave Marine you'll find the latest designs that collect hot gasses from the engine and cool them with a water-filled jacket. The efficient outflow of gasses makes your engine run better and can improve its power and lifespan.
MerCruiser Exhaust Manifolds and More
Whether you’re looking for a new MerCruiser transom assembly, MerCruiser exhaust elbows, gaskets or bolts, NuWave Marine is your one-stop-shop for the highest-quality parts. From MerCruiser exhaust manifolds to complete MerCruiser outdrives and a variety of replacement parts, we have the components you need for yearly maintenance and complete rebuilds. You’ll spend less time in the shop and more time in the water with well-made MerCruiser parts from NuWave Marine. With over 35 years of experience building, servicing, and maintaining marine engines, we know the difference that quality parts can make when you need your boat's engine to perform its best.