MerCruiser Exhaust
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Sold Out, please call for ETA.
Sierra MerCruiser "14 Degree" dry joint V8 Exhaust Manifold & Riser Kit
Sierra
$1,686.28 $1,229.99New Sierra marine dry joint exhaust Kit with 14 Degree Riser Fits: • 2004 and newer MCM GM V-6 & V-8 (305 350 & 377 cid) engines with dry joint exhaust manifold (s/n 0W310000 and up) • 2002 and newer MIE GM V-8 (350 &...- Part Number:
- k-sierra350dry
- Availability:
- Limited Stock - Please call before ordering.
$1,686.28 $1,229.99 -
(14 Degree) Dry Joint OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit 864612T01 864591T02
Mercury Marine / Quicksilver
$1,920.95OEM 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 exceptions Includes:...- 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)
$1,920.95 -
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& 3.0L earlier than 1990 Replaces: • MerCruiser part#: 860235A04 • Marine Power 600333 Ols • Sierra part#: 18-1956-2 superseded to New...- Part Number: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 -
(7 Degree) DRY JOINT OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit 864612T01 864309T02
Mercury Marine / Quicksilver
$1,794.95OEM 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)
$1,794.95 -
2X " T " fitting 22-863786A 1
Mercury Marine / Quicksilver
$96.98 $72.48MerCruiser " T " fitting for under manifold 22-863786A1 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:
- K-2-710-22-863786A 1
- Availability:
- Same Or Next Business Day
$96.98 $72.48 -
OEM MerCruiser 3.0 Manifold to Head Gasket 1968-1982
Mercury Marine / Quicksilver
$17.30 $12.06OEM MerCruiser 3.0 Manifold to Head Gasket 1968-1982 Factory gasket that goes between the head and manifold. used from years 1968-1982 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not...- Part Number:
- 710-27-53354
- Availability:
- In Stock - Ships same or next business day.
$17.30 $12.06 -
MerCruiser Down Elbows for 3 and 6 inch spacers 14801A1 14801A 1
Mercury Marine / Quicksilver
$600.43 $511.28MerCruiser 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:
- 710-14801A 1
- Availability:
- In Stock - Ships same or next business day.
$600.43 $511.28 -
SEA-DOG LINE EXHAUST THRU-HULL 3" SS 521130
SEA-DOG LINE
$122.95 $91.91Sea-Dog Line - 521130 EXHAUST THRU-HULL 3 SS EXHAUST THRU-HULL (SEA-DOG LINE) Stainless flap with rubber seal Cast 316 Stainless Hose 3" Length 5-7/8" Alternate - SDG 521130 24-2491 354-521130- Part Number:
- 354-521130
- Availability:
- In Stock - Ships same or next business day.
- A:
- 2-9/16"
- B:
- 5"
- C:
- 5-7/8"
- D:
- 4-1/2"
- E:
- 3"
$122.95 $91.91 -
Sierra EXHAUST FLAPPER 4 INCH 18-4457
Sierra
$39.39 $29.85Sierra_47 - 18-4457 EXHAUST FLAPPER 4 INCH EXHAUST PROTECTOR VALVE (Sierra) Includes: • Stainless steel hose clamp. • Weather resistant rubber flapper valve Replaces: MerCruiser 12644A Size 4" Alternate - SIE 4457 18-4457...- Part Number:
- 47-4457
- Availability:
- In Stock - Ships same or next business day.
$39.39 $29.85 -
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:
- 710-12644A 1
- Availability:
- In Stock - Ships same or next business day.
$42.99 $32.55 -
2X OEM DRY JOINT Block Off riser elbow Gaskets 864549A02
Mercury Marine / Quicksilver
$107.98 $91.98- Part Number:
- K-2-710-27-864549A02
- Availability:
- Same Or Next Business Day
$107.98 $91.98 -
SEACHOICE EXHAUST GARD COVER-4 (2/CARD 28361
Seachoice
$32.99 $27.04Seachoice - 28361 EXHAUST GARD COVER-4 (2/CARD EXHAUST GUARD COVER) Black rubber with adjustable stainless steel clamp. Flap valve prevents following seas from entering exhaust outlet when stopping or moving slowly. All stainless steel clamps included. ...- Part Number:
- 50-28361
- Availability:
- In Stock - Ships same or next business day.
$32.99 $27.04 -
OEM Quicksilver/Mercury V6/V8 Dry Joint Exhaust Riser 3" Spacer Kit (14 degree risers) (FWC Only)
Mercury Marine / Quicksilver
$835.64 $717.38OEM 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:
- 710-864929A 4
- Availability:
- In Stock - Ships same or next business day.
$835.64 $717.38 -
Sold Out, please call for ETA.
Sierra MerCruiser Dry Joint 4.3 V6 Exhaust Manifold 18-1842 864612T01
Sierra
$464.69 $384.21Replaces 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.
$464.69 $384.21 -
OEM MerCruiser 4.3 V6 1-Piece to 2-Piece Conversion Kit 1996 + 864293a02
Mercury Marine / Quicksilver
$391.58 $297.30CONVERSION 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 $297.30 -
2X OEM DRY JOINT Full Flow riser elbow Gaskets 864547A02
Mercury Marine / Quicksilver
$116.98 $99.98- Part Number:
- K-2-710-27-864547A02
- Availability:
- Same Or Next Business Day
$116.98 $99.98 -
2X OEM Dry Joint Restricted riser elbow Gaskets 864850A02
Mercury Marine / Quicksilver
$122.98 $105.98OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02 • Factory gasket that goes between the manifold and riser• Used on GM V6 and V8 engines 2002+• This is the partially open gasket for restricted flow engines...- Part Number:
- K-2-710-27-864850A02
- Availability:
- Same Or Next Business Day
$122.98 $105.98 -
OEM MerCruiser EC "No Rise" Exhaust Elbow/Riser Pair 8M0154270 8M0154271
Mercury Marine / Quicksilver
$1,123.98 $946.36- Part Number:
- K-8M0154270-8M0154271
- Availability:
- In Stock - Ships same or next business day.
$1,123.98 $946.36 -
OEM MerCruiser 496 / 8.1 Mag Exhaust Manifold & Riser Kit 866178A02
Mercury Marine / Quicksilver
$3,165.46OEM MerCruiser 496 / 8.1 Mag Exhaust Manifold & Riser Kit 866178A02 • Converts water rail manifolds to regular Includes turbulator and necessary hoses and parts! Fits MCM/MIE 496 MAG & 8.1S engines Part fits port or starboard- Part Number:
- K-OEM496
- Availability:
- In Stock - Ships same or next business day.
$3,165.46 -
Sierra EXHAUST FLAPPER 3 INCH 18-4456
Sierra
$40.59 $31.42Sierra_47 - 18-4456 EXHAUST FLAPPER 3 INCH EXHAUST PROTECTOR VALVE (Sierra) Includes: • Stainless steel hose clamp • Weather resistant rubber flapper valve Replaces: MerCruiser 34565A1, A2 Size 3" Alternate - SIE 4456...- Part Number:
- 47-4456
- Availability:
- In Stock - Ships same or next business day.
$40.59 $31.42
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 PowerBoatSupply.com, 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 PowerBoatSupply.com 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, PowerBoatSupply.com 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 PowerBoatSupply.com. 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.