MerCruiser Exhaust
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OEM MerCruiser HD-coated 7.4 / 454 / 502 Exhaust Manifold and Riser kit 807078T10 807988A03
Mercury Marine / Quicksilver
$1,757.96 $1,661.96OEM MerCruiser 454 and 502 Exhaust Kit Hot Dipped and coated OEM parts. Fits: • 454 and 502 center riser style engines with 4 inch risers • Approx. 1983-2002 Includes: • 2x OEM MerCriuser Manifold...- Part Number:
- K-OEM454-HD-CERAMIC
- Availability:
- Same Or Next Business Day
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- Big Block V8 (454 and 502)
- Generation:
- Wet Joint (86-2002)
$1,757.96 $1,661.96 -
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 -
(14 Degree) Dry Joint OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit 864612T01 864591T02
Mercury Marine / Quicksilver
$1,869.99OEM MerCruiser 4.3 V6 Exhaust Kit For MerCruiser 4.3 engines with DRY JOINT center riser exhaust and 14 degree 4 inch risers (if you are not sure of the angle of your risers, please call us with your serial number) 2002+ with some...- Part Number:
- K-OEM262DRY14
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- 4.3 v6
- Generation:
- Dry Joint (02-2010)
$1,869.99 -
(7 Degree) DRY JOINT OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit 864612T01 864309T02
Mercury Marine / Quicksilver
$1,821.99 $1,799.99OEM MerCruiser 4.3 V6 Exhaust Kit For MerCruiser 4.3 engines with DRY JOINT center riser exhaust and 7 degree 4 inch risers (if you are not sure of the angle of your risers, please call us with your serial number) 2002+ with some...- Part Number:
- K-OEM262DRY7
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- 4.3 v6
- Generation:
- Dry Joint (02-2010)
$1,821.99 $1,799.99 -
(7 Degree) Dry Joint OEM MerCruiser V8 350/305 Exhaust Manifold Kit (2002-04) 8M0185794 864309T02
Mercury Marine / Quicksilver
$1,825.96New OEM Dry Joint exhaust kit 7 Degree For MCM Serial numbers (OM600000-OW309999) approx 2002-2004 (some early 2005) with 7 degree risers! Includes: • 2x Part Number: 864309T02 riser (7 Degree) • 2x...- Part Number:
- K-OEM350DRY7
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- Small V8 (5.0, 5.7, 6.2)
- Generation:
- Dry Joint (02-2010)
$1,825.96 -
OEM MerCruiser 350/5.7/5.0/6.2 dry joint SB V8 Exhaust Manifold & Riser Kit (14 Degree) 8M0185794 864591T02
Mercury Marine / Quicksilver
$1,941.96OEM MerCruiser 350/5.7/5.0/6.2 dry joint SB V8 Exhaust Manifold & Riser Kit (14 Degree) Fits:• 2004 and newer MCM GM V-6 & V8 (305 350 & 377 cid) engines with dry joint exhaust manifold (s/n 0W310000 and up)• 2002 and...- Part Number:
- K-OEM350DRY14
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic)
- Engine Size:
- Small V8 (5.0, 5.7, 6.2)
- Generation:
- Dry Joint (02-2010)
$1,941.96
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.