Bosch 0242135529 9619 Double Iridium Spark Plugs – Up to 4x Life, Pack of 4

Overview

The Bosch 0242135529 9619 double iridium spark plugs combine high ignition efficiency with exceptional longevity, designed for modern gasoline engines, including those using Gasoline Direct Injection (GDI). With an ultra-fine wire and a laser welded tapered ground electrode, these plugs are built to sustain stable ignition and reliable performance across a wide range of driving conditions. They arrive pre-gapped from the factory and feature nickel-plated rolled threads, making the installation straightforward right out of the box.

What makes these plugs stand out is the pairing of an iridium center electrode with an iridium ground electrode inlay. This advanced design supports consistent spark delivery and enhanced durability, helping your engine maintain smooth operation over time. While results can vary, the engineering aims to support dependable ignition under typical daily commuting, highway cruising, and occasional spirited drives.

Key benefits

• Up to 4x longer life than standard copper plugs, thanks to iridium design.
• 360-degree laser welded ultra-fine wire firing pin improves ignitability and may reduce ignition voltage by up to 24%.
• Nickel-plated rolled threads offer corrosion resistance and eliminate the need for anti-seize during installation.
• Factory pre-gapped and ready to install, saving setup time and guesswork.
• OE fit with Gasoline Direct Injection (GDI) engines, designed to meet modern vehicle requirements.
• Compatible with a broad range of models from Infiniti, Lexus, Mazda, Nissan, Pontiac, Scion, and Toyota.

What you get

• Pack of four Bosch double iridium spark plugs
• Factory pre-gap and user-friendly packaging for straightforward installation

Installation tips

• Verify fitment for your exact vehicle using the model year and engine information.
• Install as received—no anti-seize needed due to the nickel-plated threads.
• Keep a clean thread area and torque to spec to ensure a reliable seal and proper spark delivery.

In real-world driving, these plugs are designed to support reliable ignition performance and long service life in a variety of conditions. They offer a balance of efficiency, durability, and ease of installation that can complement many modern engines without promising specific results for every vehicle.