MerCruiser 4.3 Riser Elbows
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Mercury Marine / Quicksilver$224.92 $192.79OEM 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,...$224.92 $192.79
Sierra$263.29 $250.99Sierra MerCruiser 4 inch Exhaust Riser Elbow For most MerCruiser engines V6 and V8 ( 4.3 5.0 5.7 6.2 7.4 ) Applications 7" (4" O.D. Riser) Comes as shown in the pictures with bolts and gaskets...$263.29 $250.99
Mercury Marine / Quicksilver$334.75 $286.93OEM 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...$334.75 $286.93
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...$451.36
Mercury Marine / Quicksilver$422.99 $398.93OEM 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"...$422.99 $398.93
Sierra$312.09 $214.12Sierra replacement 3" Exhaust elbow for MerCruiser MerCruiser 175-205 GM 229/262 CID V6 (1983+) MerCruiser 200-320 GM 305/350/377 CID V8 Small Block (1983+) MerCruiser 330-370 GM 454/502 CID V8 Big Block (1981+) Comparable Part...$312.09 $214.12
Sierra$462.99 $322.2614 degree Riser 18-1845 Replaces: • Barr: MC-2-0864591 • MerCruiser: 864591T02 Includes bolts$462.99 $322.26
Mercury Marine / Quicksilver$215.17 $158.63MerCruiser down Elbow Tube 14478T01 Used for converting the 1 peice manifolds!Elbow tube for MerCruiser MODEL 175-205 - V6, GM 229/262 CID (1983 up to 0M SN #) Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions...$215.17 $158.63
Get your boat’s engine in top condition with a new MerCruiser 4.3 riser elbow and other quality replacement parts from NuWave Marine. We recommend replacing your MerCruiser 4.3 riser elbows with new parts every five years, or whenever you notice significant wear, as part of your routine MerCruiser exhaust maintenance. Well cared for parts might last for longer than five years in saltwater applications, but you’re really gambling with your engine’s health at that point. After all, it only takes a small leak to cause a catastrophic engine failure. Freshwater exhausts will likely last longer, but it still pays to inspect them thoroughly every year.
4.3 MerCruiser Exhaust Elbow Riser
The elbow riser takes hot gasses from the exhaust manifold, cools them, and passes them along to the rest of the system. Risers are one of the places in a MerCruiser 4.3 Exhaust where water can seep into your engine if the seals are not appropriately watertight.
MerCruiser 4.3 Riser Gasket
A new riser will also need a new MerCruiser 4.3 riser gasket. While replacing your old ones, make sure to take notice of the wear on each of them. If your engine is functioning properly, the wear and tear on each side’s riser gasket should look very similar. If one is damaged and the other isn’t, it implies there’s a problem with your exhaust manifold, or the engine itself.
4.3 MerCruiser Elbow Tube
To connect your risers to MerCruiser 4.3 exhaust Y-pipes, you’ll need an elbow tube. Get a 4.3 MerCruiser down elbow tube from NuWave Marine that is designed to bridge the gap between your riser’s output and the rest of your exhaust system. Though these parts are simple and extremely durable, it still makes sense to replace them as part of an exhaust overhaul.
Get High Quality MerCruiser Replacement Parts
NuWave Marine only carries high-quality OEM parts and premium aftermarket parts from trusted manufacturers like Sierra. Whether you're a professional boat mechanic or doing a little DIY maintenance on your own marine engine, you'll want the peace of mind that comes from using only the best replacement parts. From MerCruiser 4.3 manifolds to MerCruiser 4.3 Spacer Kits, and smaller parts like gasket and bolt sets, our large inventory has the parts you need for routine maintenance and complex projects.