Maximum Performance: Tapered ground wire enhances ignitability for improved combustion and performance.

Enhanced Reliability: Proprietary Platinum tipped ground electrode increases durability and resistance to wear for a longer plug life.

Fuel Efficiency: Iridium and ruthenium laser-welded finewire center electrode provides optimal fuel efficiency, increased acceleration, and greater ignitibility.

Maximum Performance: Iridium and ruthenium enhanced center electrode and firewire design increase ignitability and provide more focused ignition for improved engine performance.

Enhanced Reliability: Designed with a proprietary platinum tipped ground electrode for maximum efficiency in all ignition types, including DIS and V-trimmed ground electrodes for improved plug life.

Fuel Efficiency: Finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption.

Maximum Performance: Yttrium-enhanced ground electrode delivers better heat transfer for improved durability under high temperatures and pressure.

Enhanced Reliability: Platinum-to-Platinum designed to prevent gap erosion for a longer plug life.

Engineered for DIS Engines: Providing better performance over copper and platinum plugs, these are used primarily for distributorless ignition system engines.

Enhanced Reliability: Designed with platinum firing tip to prevent gap erosion for increased durability and a longer plug life.

Maximum Performance: Finewire platinum design provides focused ignition power and longer plug life.

Enhanced Reliability: Proprietary ceramic tip improves heat management, fouling resistance, and increased dielectric strength.

Easy Installation: Plugs come pre-gapped and do not require gap adjustments.

Maximum Performance: Sheathed coil heaters provide better pre-heating and quicker starts.

Enhanced Reliability: Designed with a high-heat nickel-chrome metal alloy to fire up diesel engines from a cold start.

Engineered for Diesel Engines: Offers coverage for a variety of diesel applications. Available for diesel engines in passenger cars and light trucks.

Maximum Performance: Copper core electrode provides higher thermal conductivity and improves resistance to fouling.

Enhanced Reliability: Engineered with high nickel alloy center and ground electrode for longer plug life.

Fuel Efficiency: Guaranteed to deliver quick starts, better fuel economy and smooth acceleration.