NGK Iridium IX Spark Plug (TR5-1IX)

NGK is well-known for making reliable ignition components, and their Iridium IX spark plugs are a solid choice for anyone looking to get more out of their engine. These plugs are designed to offer improved acceleration, better fuel efficiency, and lasting durability. They feature a fine iridium tip that ensures a consistent spark, which helps with starting, idling, and throttle response. The iridium alloy has a very high melting point, making it well-suited for today's hotter-running engines.

The construction of these plugs includes trivalent metal plating, which helps resist corrosion and makes them easier to remove later on. The ground electrode is tapered, further aiding in reliable ignition. This set comes with four plugs, making it a convenient option for many vehicles that use a V6 or V8 engine, like the Ford Ranger or Mercury Lynx. If you're looking to upgrade from standard nickel alloy plugs, these Iridium IX plugs are a great step up.