MerCruiser Exhaust
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On Sale
OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit (4 inch) 1983-2002 HD Ceramic 99746A17 807988A03
Mercury Marine / Quicksilver
$1,521.96 $1,192.99OEM MerCruiser 4.3 V6 Exhaust Manifold & Riser Kit Hot Dipped Ceramic Coated For MerCruiser 4.3 engines with center riser exhaust and 4 inch risersApprox 1986-2002 with some exceptions Includes: • 2x MerCruiser manifold part number -...- Part Number:
- K-OEM262HDCERAMIC
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic) Manifolds and Risers
- Engine Size:
- 4.3 v6
- Generation:
- Wet Joint (86-2002)
$1,521.96 $1,192.99 -
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 -
OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit (4 inch) 1983-2002 99746A17 807988Q03
Mercury Marine / Quicksilver
$1,293.96 $1,051.38OEM MerCruiser 4.3 V6 Exhaust Manifold & Riser Kit For MerCruiser 4.3 engines with center riser exhaust and 4 inch risersApprox 1986-2002 with some exceptions Includes: • 2x MerCruiser manifold part number - 99746A17 (Replaces 99745,...- Part Number:
- K-OEM262
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Hot Dipped (Ceramic) Manifolds /E-coated Risers
- Engine Size:
- 4.3 v6
- Generation:
- Wet Joint (86-2002)
$1,293.96 $1,051.38 -
OEM MerCruiser 305/350 Exhaust Manifold & Riser Kit - 5.7 / 5.0 / 6.2 E-Coated (1986-2002) 860246Q11 807988Q03
Mercury Marine / Quicksilver
$1,350.95 $1,059.99OEM MerCruiser 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, you may need dry joint exhaust, please call us with your serial...- Part Number:
- K-OEM350
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- E-Coated
- Engine Size:
- Small V8 (5.0, 5.7, 6.2)
- Generation:
- Wet Joint (86-2002)
$1,350.95 $1,059.99 -
OEM MerCruiser 7.4 / 454 / 502 Exhaust Manifold and Riser kit 807078T08 807988Q03
Mercury Marine / Quicksilver
$1,332.96 $1,174.99OEM MerCruiser 454 and 502 Exhaust Kit Fits: • 454 and 502 center riser style engines with 4 inch risers • Approx. 1983-2002 Includes: • 2x OEM MerCriuser Manifold 807078T08 Replaces 807078T10 ...- Part Number:
- K-OEM454
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- E-Coated
- Engine Size:
- Big Block V8 (454 and 502)
- Generation:
- Wet Joint (86-2002)
$1,332.96 $1,174.99
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.