MerCruiser Exhaust
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OEM MerCruiser 454 / 7.4 Manifold mounting bolt 10-37612
Mercury Marine / Quicksilver
$2.40 $1.50New OEM MerCruiser Big block manifold mounting bolt 454 /502 Each manifold requires 8 of these bolts- Part Number:
- 710-10-37612
- Availability:
- In Stock - Ships same or next business day.
$2.40 $1.50 -
OEM V6 & V8 Small Block manifold mounting bolt 10-53728 8M0214937
Mercury Marine / Quicksilver
$4.90 $3.06NEW OEM MerCruiser (center riser style) Exhaust manifold mounting bolts Fits V6 and small block engines 5.0-305 , 6.2-377, 383approx 1986+ V6 uses 6 bolts per manifoldV8 uses 4 bolts per manifold- Part Number:
- 710-10-8M0214937
- Availability:
- In Stock - Ships same or next business day.
- Fitment:
- .375-16 x 4.75
$4.90 $3.06 -
OEM MerCruiser 4" Exhaust Riser elbow mounting bolt 10-43749
Mercury Marine / Quicksilver
$8.50 $5.31OEM MerCruiser Exhaust Riser mounting bolts Fits 4.3 , small block, and big block MerCruiser engines with 4" Riser Elbows Will not work for dry joint (2002+) Not for riser mounted remote oil filter! see other listings- Part Number:
- 710-10-43749
- Availability:
- In Stock - Ships same or next business day.
$8.50 $5.31 -
OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726
Mercury Marine / Quicksilver
$19.30 $13.99OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726 Factory gasket that goes between the manifold and riser. Used on GM V6 and V8 engines. This is the Completely open gasket for Full Flow engines only! Exhaust elbow gasket 863726 is the standard...- Part Number:
- 710-27-863726
- Availability:
- In Stock - Ships same or next business day.
$19.30 $13.99 -
OEM MerCruiser 305/350 Exhaust Manifold & Riser Kit - 5.7 / 5.0 / 6.2 E-Coated (1986-2002) 860246Q11 807988Q03
Mercury Marine / Quicksilver
$1,286.34 $1,121.96OEM 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 number)...- 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)
$1,286.34 $1,121.96 -
OEM MerCruiser Restricted Riser Elbow to Manifold Gasket 27-863724
Mercury Marine / Quicksilver
$17.60 $12.49OEM MerCruiser Restricted Riser Elbow Gasket 27-863724 Exhaust elbow gasket 863724 is the standard cooling, restrictor gasket. This gasket is for use on V-6 and V-8 MerCruiser stern drives and inboard engines (1981 through 1997) made by General motors...- Part Number:
- 710-27-863724
- Availability:
- In Stock - Ships same or next business day.
$17.60 $12.49 -
OEM MerCruiser Block off riser elbow Gasket 27-8637251
Mercury Marine / Quicksilver
$18.90 $13.49OEM MerCruiser Block off riser elbow Gasket 27-8637251 Factory gasket that goes between the manifold and riser. Used on GM V6 and V8 engines. This is the Completely blocked off gasket for closed cooling engines only! Exhaust elbow gasket 8637251 is the...- Part Number:
- 710-27-863725 1
- Availability:
- In Stock - Ships same or next business day.
$18.90 $13.49 -
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 Quicksilver/Mercury Exhaust Flapper/Shutter 807166A1
Mercury Marine / Quicksilver
$96.92 $82.99OEM Quicksilver/Mercury Exhaust Flapper/Shutter 807166A1 Stern drive exhaust water shutter 807166A1 is for use on MerCruiser stern drives to keep following seas/water from washing back into the exhaust system and into the engine when engine is not...- Part Number:
- 710-807166A 1
- Availability:
- In Stock - Ships same or next business day.
$96.92 $82.99 -
OEM MerCruiser 7.4 / 454 / 502 Exhaust Manifold and Riser kit 807078T08 807988Q03
Mercury Marine / Quicksilver
$1,333.00 $1,161.96OEM 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 (manifold...- 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)
$1,333.00 $1,161.96 -
OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02
Mercury Marine / Quicksilver
$58.25 $49.99OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02 Exhaust elbow gasket 864850A02 is for use on 2002 and newer V-6 and V-8 MerCruiser stern drive and inboard engines with dry joint exhaust manifolds. This is a restrictor style gasket...- Part Number:
- 710-27-864850A02
- Availability:
- In Stock - Ships same or next business day.
$58.25 $49.99 -
OEM MerCruiser V8 Small Block Manifold to Head Gasket 27-33395
Mercury Marine / Quicksilver
$13.70 $9.99OEM MerCruiser V8 Small Block Manifold to Head Gasket 27-33395 Exhaust manifold gasket 33395 is for use on V-8 (283, 305, 350 and 377 CID) engines made by General Motors for MerCruiser stern drives and inboards . See your owner's manual or service manual...- Part Number:
- 710-27-33395
- Availability:
- In Stock - Ships same or next business day.
$13.70 $9.99 -
OEM MerCruiser 496 Exhaust Riser Gasket 27-862356
Mercury Marine / Quicksilver
$13.10 $9.49NEW Factory MerCruiser Exhaust Riser Gasket This gasket is used between the riser and the manifold on MerCruiser 496 engine Exhaust elbow gasket 862356 is for use on 496 Magnum and 8.1S MerCruiser stern drives and inboard engines. See your owner's manual...- Part Number:
- 710-27-862356
- Availability:
- In Stock - Ships same or next business day.
$13.10 $9.49 -
OEM MerCruiser 4" E-Coated 7 Degree Riser/Elbow 807988Q03
Mercury Marine / Quicksilver
$249.92 $213.99OEM MerCruiser 4" E-Coated 7 Degree Riser/Elbow 807988Q03 Fits MerCruiser GM V6 & V8 engines with center rise outlet exhaust manifold (approx 2002 & older) Replaces OEM#:807988A2 , 807988q03, 807988-c, 807988A03, 807988A 2, 807988A2,...- Part Number:
- 710-807988Q03
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- E-Coated
$249.92 $213.99 -
Sierra MerCruiser 5.7 350 / 5.0 305 / 6.2 377 V8 Exhaust Manifold & Riser Kit 18-1953-2 18-1976-2
Sierra
$1,027.16 $899.52Sierra 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.
$1,027.16 $899.52 -
OEM MerCruiser 496 / 8.1 Mag Exhaust Manifold Kit With Parts 866178A02
Mercury Marine / Quicksilver
$889.64 $787.12OEM MerCruiser 496 Mag Exhaust Manifold 866178A02 Converts water rail manifolds to regular, but also replaces all parts for non water rail manifolds. Includes turbulator and necessary hoses and parts! Fits MCM/MIE...- Part Number:
- 710-866178A02
- Availability:
- In Stock - Ships same or next business day.
$889.64 $787.12 -
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 DRY JOINT riser elbow Full Flow Gasket 27-864547a02
Mercury Marine / Quicksilver
$58.17 $49.99OEM MerCruiser DRY JOINT riser elbow Full Flow Gasket 27-864547a02 Exhaust elbow gasket 864547A02 is for use on 2002 and newer V-6 and V-8 MerCruiser stern drive and inboard engines with dry joint exhaust manifolds. See your owner's manual or service...- Part Number:
- 710-27-864547A02
- Availability:
- In Stock - Ships same or next business day.
$58.17 $49.99 -
OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting 22-862210a01
Mercury Marine / Quicksilver
$28.00 $23.99OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting 22-862210a01 Stainless Steel Exhaust Manifold Drain Elbow Kit 862210A01 is for use on V-6 and V-8 MerCruiser stern drive and inboard engines with center rise manifolds. Kit includes the...- Part Number:
- 710-22-862210A01
- Availability:
- In Stock - Ships same or next business day.
- Manufacturer Part Number:
- 22-862210a01
$28.00 $23.99
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.