MerCruiser 4.3 Gaskets and Bolts
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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 $11.87OEM 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 $11.87 -
OEM MerCruiser Restricted Riser Elbow to Manifold Gasket 27-863724
Mercury Marine / Quicksilver
$17.60 $10.82OEM 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 $10.82 -
OEM MerCruiser Block off riser elbow Gasket 27-8637251
Mercury Marine / Quicksilver
$18.90 $11.62OEM 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 $11.62 -
OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02
Mercury Marine / Quicksilver
$58.25 $41.59OEM 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 $41.59 -
OEM MerCruiser DRY JOINT riser elbow Full Flow Gasket 27-864547a02
Mercury Marine / Quicksilver
$58.17 $41.53OEM 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 $41.53 -
OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting 22-862210a01
Mercury Marine / Quicksilver
$28.00 $20.16OEM 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 $20.16 -
MerCruiser " T " fitting for under manifold 22-863786A1
Mercury Marine / Quicksilver
$48.25 $34.45MerCruiser " T " fitting for under manifold 22-863786A1 Exhaust manifold drain t-fitting 863786A1 is for use on MerCruiser V-6 and V-8 (305, 350 and 377 CID) engines with water drain systems. See your owner's manual, parts listing or service manual for...- Part Number:
- 710-22-863786A 1
- Availability:
- In Stock - Ships same or next business day.
$48.25 $34.45 -
OEM MerCruiser DRY JOINT riser elbow block off Gasket 27-864549a02
Mercury Marine / Quicksilver
$53.92 $38.50OEM MerCruiser DRY JOINT riser elbow block off Gasket 27-864549a02 Exhaust elbow gasket 864549A02 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 block off style gasket. See...- Part Number:
- 710-27-864549A02
- Availability:
- In Stock - Ships same or next business day.
$53.92 $38.50 -
OEM MerCruiser 4.3 V6 Manifold to Head Gasket 27-99757 27-8M0215011
Mercury Marine / Quicksilver
$14.40 $8.86OEM MerCruiser 4.3 V6 Manifold to Head Gasket 27-99757 / 8M0215011 Factory gasket that goes between the head and manifold. Used on all center riser 4.3 engines Exhaust manifold gasket 99757 is for use on V-6 engines made by General Motors for MerCruiser...- Part Number:
- 710-27-8M0215011
- Availability:
- In Stock - Ships same or next business day.
$14.40 $8.86 -
OEM MerCruiser Exhaust Center Riser mounting bolt (REMOTE OIL FILTER)
Mercury Marine / Quicksilver
$16.92 $12.18OEM MerCruiser Exhaust Riser mounting bolts (extended) (63/4") Fits 4.3 , small block, and big block MerCruiser engines with 4" Riser Elbows Will not work for dry joint (2002+) ONLY for riser mounted remote oil filter!usually 2x per engine You will need...- Part Number:
- 710-10-44387
- Availability:
- In Stock - Ships same or next business day.
- Fitment:
- .376-16 x 6.750
$16.92 $12.18 -
MerCruiser straight hose fitting 22-866725 22-863804
Mercury Marine / Quicksilver
$17.60 $10.82MerCruiser straight hose fitting 22-866725 22-863804 22-866725 replaces 22-863804 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...- Part Number:
- 710-22-866725
- Availability:
- In Stock - Ships same or next business day.
$17.60 $10.82 -
2X OEM Dry Joint Restricted riser elbow Gaskets 864850A02
Mercury Marine / Quicksilver
$116.50 $83.18OEM 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
$116.50 $83.18 -
2X " T " fitting 22-863786A 1
Mercury Marine / Quicksilver
$96.50 $68.90MerCruiser " 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
$96.50 $68.90 -
OEM MerCruiser Dry Joint Riser mounting bolt 865982057 8M0214977
Mercury Marine / Quicksilver
$17.17 $12.36NEW Factory OEM MerCruiser Dry Joint Riser mounting bolt 10-865982057 865982057 8M0214977 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be...- Part Number:
- 710-10-8M0214977
- Availability:
- In Stock - Ships same or next business day.
- Fitment:
- .375-16 x 7.50
$17.17 $12.36 -
2X OEM DRY JOINT Block Off riser elbow Gaskets 864549A02
Mercury Marine / Quicksilver
$107.84 $77.00- Part Number:
- K-2-710-27-864549A02
- Availability:
- Same Or Next Business Day
$107.84 $77.00 -
OEM MerCruiser 4.3 V6 1-Piece to 2-Piece Conversion Kit 1996 + 864293a02
Mercury Marine / Quicksilver
$391.58 $292.44CONVERSION 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 $292.44 -
2X OEM DRY JOINT Full Flow riser elbow Gaskets 864547A02
Mercury Marine / Quicksilver
$116.34 $83.06- Part Number:
- K-2-710-27-864547A02
- Availability:
- Same Or Next Business Day
$116.34 $83.06
PowerBoatSupply.com carries the MerCruiser 4.3 gaskets and bolts you need to properly maintain your boat's engines. We recommend inspecting these parts yearly and replacing the entire exhaust system every 5 years for saltwater applications. Whether you're a veteran mechanic or servicing a motor for the first time, you know that a MerCruiser exhaust has a lot of moving parts. It’s very important to pay attention to the big parts like exhaust manifolds and risers, but don’t overlook smaller components. It’s imperative that your gaskets and bolts are in good shape if you want to prevent water from leaking into the engine. Replacing a simple gasket before it fails can be the difference between keeping your engine running perfectly, and major water leakage.
MerCruiser 4.3 Gasket Set
The MerCruiser 4.3 gasket set from PowerBoatSupply.com has all the parts you need to replace the gaskets on your MerCruiser 4.3 exhaust. If you're redoing all your gaskets, it makes sense to buy the full set. If you're just looking for a single gasket, we carry those, too. Keep in mind that when one gasket is starting to wear out, the others probably aren’t far behind. Given that gaskets are relatively inexpensive, it’s usually a good idea to replace them all at once when you start to notice any signs of degradation.
MerCruiser 4.3 Riser Gasket and Bolts
MerCruiser 4.3 manifold bolts and riser gaskets are essential parts that will keep cooling seawater or lake water out of your engine. Of course, they do handle a lot of stress due to the demands of a powerful 4.3L engine and the unique demands of a marine environment. As you’re checking gaskets, remember to also closely inspect your bolts.
Repair Your Boat’s Exhaust with Premium Parts
NuWave carries only OEM and premium aftermarket parts from trusted companies like Sierra. Whether you’re looking for MerCruiser 4.3 Y-pipes, MerCruiser 4.3 manifolds, MerCruiser 4.3 spacer kits, or simply need a few spare gaskets and bolts, our inventory has it all. Don’t hesitate to contact our team if you have any questions.