MerCruiser 4.3 Exhaust Parts
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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 4.3 V6 Ceramic Coated Exhaust Manifold 99745 99746A17
Mercury Marine / Quicksilver
$396.92 $309.78OEM MerCruiser 4.3 V6 Ceramic Coated Exhaust Manifold 99745 99746A17 Exhaust manifold 99746A17 is for use on the port or starboard (left or right) side of V-6 (220 and 262 cid) MerCruiser stern drive and inboard engines (model year 1985...- Part Number:
- 710-99746A17
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$396.92 $309.78 -
OEM MerCruiser 4.3 Dry Joint Exhaust Manifold (2002+) 864612c 864612T01
Mercury Marine / Quicksilver
$472.07 $471.99OEM MerCruiser 4.3 Dry Joint Exhaust Manifold (2002+) 864612T01 Exhaust manifold 834612T01 is for V-6 MerCruiser stern drive and inboard engines made by General Motors with dry joint exhaust systems (serial number 0M615000 and up, model year 2002 and...- Part Number:
- 710-864612T01
- Availability:
- In Stock - Ships same or next business day.
$472.07 $471.99 -
OEM MerCruiser 4" Ceramic Coated Riser/Elbow 807988A03
Mercury Marine / Quicksilver
$334.75 $286.99OEM MerCruiser 4" Ceramic Coated Riser/Elbow 807988A03 Exhaust elbow 807988A03 is for use on V-6 and V-8 MerCruiser stern drive or inboard engines made by General Motors having a center rise outlet exhaust manifold (model year 2002 and older). It...- Part Number:
- 710-807988A03
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$334.75 $286.99 -
Sierra MerCruiser 4.3 Liter V6 Exhaust Manifold 99746A17 9975 18-19521
Sierra
$377.79 $273.91Sierra 18-1952-1 Replacement Exhaust Manifold Kit For MerCruiser V6 4.3 Liter 02 and older engines Will not work for dry joint systems Kit Contains: • 1x Exhaust Manifold • 1x Mounting Package • 1x...- Part Number:
- 47-19521
- Availability:
- In Stock - Ships same or next business day.
$377.79 $273.91 -
OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow 864591T02
Mercury Marine / Quicksilver
$451.36OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow 864591T02 These Will only work with Dry Joint systems! Exhaust elbow 864591T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust...- Part Number:
- 710-864591T02
- Availability:
- In Stock - Ships same or next business day.
$451.36 -
OEM MerCruiser 4" Dry Joint 7 Degree Riser/Elbow 864309T02
Mercury Marine / Quicksilver
$422.99 $398.99OEM 7 Degree Dry Joint Riser Exhaust elbow 864309T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust manifold (model year 2002 through 2004, serial number 0M600000 through 0W309999). It has a 4"...- Part Number:
- 710-864309T02
- Availability:
- In Stock - Ships same or next business day.
- Coating:
- Ceramic
$422.99 $398.99 -
Sierra Marine "14 DEGREE" DRY JOINT MerCruiser Riser Elbow 864591T02 18-1845
Sierra
$462.99 $322.2614 degree Riser 18-1845 Replaces: • Barr: MC-2-0864591 • MerCruiser: 864591T02 Includes bolts- Part Number:
- 47-1845
- Availability:
- In Stock - Ships same or next business day.
$462.99 $322.26 -
Sierra MerCruiser Dry Joint 4.3 V6 Exhaust Manifold 18-1842 864612T01
Sierra
$470.49 $333.73Replaces 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.
$470.49 $333.73 -
OEM MerCruiser 4.3 V6 1-Piece to 2-Piece Conversion Kit 1996 + 864293a02
Mercury Marine / Quicksilver
$391.58 $299.94CONVERSION 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 $299.94 -
OEM MerCruiser Exhaust Riser Spacer Kit 3" 93320A14 (for SS elbows only)
Mercury Marine / Quicksilver
$388.50 $344.34NEW OEM MerCruiser 3 inch spacer kit ONLY WORKS WITH Stainless Steel ELBOWS! Includes everything in the photo: • bolts • gaskets • 3 inch riser blocks • nuts and washers- Part Number:
- 710-93320A14
- Availability:
- In Stock - Ships same or next business day.
$388.50 $344.34
4.3 Exhaust Parts
PowerBoatSupply.com 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. PowerBoatSupply.com 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 PowerBoatSupply.com 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.
PowerBoatSupply.com 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.