NGK Standard Spark Plug, Marine, Copper Core, Corrosion-Resistant Plating

Reliable performance for marine use, with steady ignition and easier service.

OE approved and built for the long haul.

Product Overview:

When your engine needs a clean, steady spark, this NGK standard spark plug keeps things simple. It is made for marine use, so you get a part that fits the job without any fuss. The solid copper core helps carry heat and conductivity the way you want, and the corrosion resistant plating makes install and removal feel less like a wrestling match. If you are keeping a boat running smooth, that matters. Picture a calmer start, a cleaner idle, and less second guessing when you are out on the water.

Key Features:

• Solid Copper Core gives you better heat control and a broad range of use, so the engine stays more settled.
• Corrosion Resistant Plating helps the plug go in and come out with less drama, which is a small mercy on service day.
• 5 Rib Insulator Design helps prevent flashover, so the spark stays where it should and the engine runs with less mischief.
• Cold Rolled Threads protect the cylinder head during install, which saves you from that ugly, expensive mistake.
• Triple Gasket Sealing helps keep gas leakage down past the shell, so sealing stays tight and dependable.

Quick Specs:

• Brand: NGK
• Manufacturer: NGK
• Model Number: 1503
• Format/Type: Marine Spark Plug
• Warranty: 60 Day

Set it in place and you get a plug that supports smoother running, easier maintenance, and a more dependable feel when the motor fires. If you want that kind of quiet confidence, this is a sensible pick. Shall we take the next step?