MerCruiser 4.3 Riser Elbows
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.