Subaru WRX 2.0L 2004-2005, Iridium XP Enhanced Alloy™ Spark Plug Set (XP3923) by Autolite®, 4 Piece Set, Gap: 0.03. These high-tech spark plugs feature iridium-enhanced 0.6mm finewire design and proprietary platinum sidewire technology to provide superior durability and a more focused ignition for better overall ignitability. These spark plugs also have a nickel-plated shell for improved corrosion protection.
Fitment Notes: You need 4 spark plugs for your vehicle. Please specify quantity in the cart.
- One of the most high-tech spark plugs on the market
- Designed for better durability and overall ignitability, and optimum performance
- Provide improved throttle response
- Increase engine power and fuel economy
- Reduce emissions
- Ribbed ceramic design prevents flash overs
- Iridium-enhanced center electrode for reliable performance
- Patented, platinum sidewire technology for improved durability and longer life
- 0.6-mm finewire design and V-trimmed platinum sidewire for improved ignitability
- Nickel-plated shell for improved corrosion protection
- Last up to ten times the life of a standard plug
- Backed by a 7-year warranty
The spark plug is the last step in the ignition circuit. It takes a voltage surge from the coil and creates a high voltage spark that ignites the compressed air fuel mixture within each cylinder. If everything operates properly, the engine runs efficiently providing maximum fuel economy and the lowest exhaust emissions. Spark plugs are available in different materials, heat ranges, reach, thread diameter, and seat type, with features to suit engine requirements. Always use the spark plug that is specified for your engine. If the wrong plug is used, it could come into contact with a piston or valve within the engine and break causing serious damage to the engine.
With these spark plugs by Autolite, you are guaranteed that they will not only fit perfectly but meet all the requirements of your engine as Autolite uses what is called a "rating engine" to match up OE plugs. Autolite engineers carefully measure OE spark plugs and then match the physical qualities with several Autolite plugs. Then they run the OE plug in their rating engine, which provides data that indicates the heat range of the OE plug. They use this data to precisely match every Autolite spark plug to both the heat range and dimensions of the OE product. Engineered, designed, and manufactured with professional care, these spark plugs meet all OE standards and specifications.
With an iridium-enhanced 0.6 mm finewire design and proprietary platinum sidewire technology, these spark plugs by Autolite deliver a larger flame kernel and more complete burn providing improved throttle response, engine power, and fuel efficiency. The plugs ensure faster starts, prevents fouling, and provide increased durability. Their ribbed ceramic design prevents flash overs, while nickel-plated shell provides extra corrosion protection.10.30Brand: Autolite Part Number: XP3923 UPC: 009100044341
An innovation leader since 1936, Autolite creates the highest quality ignition products for a wide variety of engines. Established in 1911, the company started manufacturing buggy lamps and became a thriving automotive parts manufacturer by the 1930's. Still the first Autolite spark plug saw the world in 1936 and had instant success on the market. Today, the company is known as the manufacturer of America's best-selling spark plug and offers a number of spark plug series such as Autolite XP Xtreme Performance, Autolite Platinum, Autolite Revolution HT, Autolite Double Platinum, etc.
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