MerCruiser 4.3 Exhaust Parts
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OEM V6 & V8 Small Block manifold mounting bolt 10-53728 8M0214937
Mercury Marine / Quicksilver
$4.90 $3.80NEW 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 $3.80 -
OEM MerCruiser 4" Exhaust Riser elbow mounting bolt 10-43749
Mercury Marine / Quicksilver
$8.50 $6.59OEM 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 $6.59 -
OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726
Mercury Marine / Quicksilver
$19.30 $14.38OEM 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 $14.38 -
OEM MerCruiser Restricted Riser Elbow to Manifold Gasket 27-863724
Mercury Marine / Quicksilver
$17.60 $13.11OEM 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 $13.11 -
OEM MerCruiser Block off riser elbow Gasket 27-8637251
Mercury Marine / Quicksilver
$18.90 $14.08OEM 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...- Part Number:
- 710-27-863725 1
- Availability:
- In Stock - Ships same or next business day.
$18.90 $14.08 -
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 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 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 -
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 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
4.3 Exhaust Parts
NuWave Marine has a full stock of MerCruiser 4.3 exhaust parts for boat owners and mechanics who need to replace a faulty or worn-out component or take on an entire rebuild. Come to us for all the replacement parts you need to get maximum power from your engine and keep it in top condition.
We suggest changing your OEM exhaust system every 5 years, just to be safe. It’s possible that it could last for longer, but you’re really taking a risk that water will seep into your motor and cause serious damage. For fresh water applications, exhaust parts might last much longer, but routine maintenance is still necessary. If you have a 4.3L MerCruiser engine, you’ll need 4.3 exhaust kits or individual components from our large inventory. NuWave Marine is proud to carry only premium OEM parts and high-quality Sierra aftermarket parts. Stop a small problem from becoming a big one with these exhaust system replacement parts.
MerCruiser 4.3 Exhaust Manifold
Venting hot gasses from the cylinders is an important job and it all starts with your manifold. Exhaust manifolds from NuWave Marine are precision-engineered to be efficient, durable, and easy to install. Made to handle the outflow of gasses from these powerful engines, a new manifold is a must if you notice any sort of corrosion or leakage.
MerCruiser 4.3 Exhaust Y Pipe
In addition to riser elbows, MerCruiser 4.3 Y pipes play an important role in venting gas collected by the manifold outward. Y pipes take exhaust from two separate manifolds and combine it into one transom assembly. Just like with the manifolds, if you notice any seepage, leakage, or corrosion, the best course of action is to replace the part entirely.
We also carry other essentials for 4.3 liter MerCruiser motors. MerCruiser 4.3 spacer kits contain the parts you need to make sure your exhaust system sits at the right height. We also offer riser elbows, and smaller spare MerCruiser 4.3 exhaust parts like gaskets and bolts. If you need an entire new system, or just a new gasket, we’ve got all the MerCruiser exhaust replacement parts you require.
NuWave Marine has been fixing, building, and maintaining marine engines since 1987. If you have a question, drop us a line and let our experience work for you.