Mercruiser 7.4 454 & 502 Gaskets and Bolts

Mercruiser 7.4 454 & 502 Gaskets and Bolts

7.4 454 & 502 Gaskets and Bolts

Whether you’re looking for a MerCruiser 454 head gasket set or a few spare bolts to finish an exhaust system replacement job, you’ll find it here at NuWave Marine. When it comes to your MerCruiser exhaust, every part matters. Though gaskets and bolts are small, it could lead to a big problem if they should fail and allow water to seep into your engine.

At NuWave Marine, we recommend inspecting your boat’s engine annually, and replacing the entire exhaust system every five years if it’s a saltwater boat. Freshwater application may last longer, though it’s still smart to replace 7.4-454-502 exhaust parts before they break down. You can purchase complete exhaust kits or pick up a MerCruiser 7.4 head gasket set if other parts like the riser elbow and manifold don’t need to be replaced at this point. Of course, keep in mind that if you notice wear or corrosion on one part, chances are that other parts that were installed around the same time are likely to follow suit.

MerCruiser 502 Exhaust Manifold Gasket

The MerCruiser 502 gasket set from NuWave Marine contains everything you need to make sure your 502 exhaust system stays leak-free. Since we only carry the very best OEM parts and premium aftermarket parts from trusted brands, you know you're getting parts that can perform under stress.

MerCruiser 454 Manifold Gasket

Forming a watertight seal between the exhaust manifold and the riser elbow is extremely important, especially with wet exhaust systems. Gaskets from this collection are precision-crafted from high-quality materials. We wouldn't sell them to you if we didn't use them in our own boats.

Shop With a Trusted Supplier

NuWave Marine has been providing top-of-the-line replacement parts to both recreational boaters and boat mechanics for four decades. We have warehouses across the country, and we ship every part from the warehouse closest to you within 24 hours of purchase. Whether you need gaskets, elbow risers, or Y-pipe parts, our knowledgeable staff is standing by and ready to assist.