Bosch Double Iridium Spark Plugs Pack of 4 — 96302 OE Fine‑Wire, Pre‑Gapped for Ford/Mazda Engines

BOSCH 96302 OE Fine Wire Double Iridium spark plugs are high‑durability, OE‑matched ignition components designed to improve ignitability and extend service life for modern gasoline engines.

These Bosch double iridium plugs combine an ultra‑fine iridium center electrode with an iridium ground inlay and a laser‑welded tapered ground electrode to give reliable spark performance and long life. Engineered to meet original equipment specifications, they arrive pre‑gapped and ready to install, with corrosion‑resistant nickel‑plated rolled threads that remove cleanly and eliminate the need for anti‑seize. The 96302 is suitable for a wide range of Ford, Lincoln, Mazda and Mercury gasoline engines — including many GDI applications — when you confirm fitment for your specific engine.

How do these plugs affect starting and throttle response?

The double iridium design and ultra‑fine center electrode reduce voltage requirements and produce a more consistent spark. That results in quicker ignition of the air‑fuel mixture and can sharpen cold starts and throttle transitions without modifying engine tuning.

• Ultra‑fine iridium center electrode for improved ignitability
• Laser‑welded tapered ground electrode for consistent spark geometry
• Reduced voltage demand — helps reliable starts under load

What makes Bosch 96302 more durable than standard plugs?

Bosch pairs an iridium firing pin with an iridium ground inlay to resist wear far longer than copper or nickel tips. The robust materials plus precision welding keep electrode gaps stable over extended service intervals, delivering predictable performance longer.

• Double iridium electrodes resist erosion and extend service life
• 360° laser welding secures the fine wire against breakage
• Nickel‑plated rolled threads resist corrosion and prevent galling

Are Bosch 96302 plugs ready to install out of the box?

Yes — each plug is factory pre‑gapped to OE specifications so they can be installed immediately. The plated threads remove the need for anti‑seize during installation, which speeds maintenance and helps ensure correct torque application.

• Factory pre‑gapped to OE spark position and gap values
• No anti‑seize required thanks to nickel‑plated rolled threads
• Designed for OE fit, form, and function on modern gasoline engines

Which vehicles and engines commonly use this spark plug?

The 96302 fits many modern gasoline engines, including several GDI applications from Ford, Lincoln, Mazda and Mercury. Always verify the part against your vehicle’s engine code or use the seller’s fitment tool to confirm compatibility before purchase.

• Compatible with many Ford models: Escape, Fusion, Ranger, Transit families, Maverick and others
• Used in select Lincoln models such as Corsair and earlier MKZ variants
• Fits numerous Mazda models including 3, 5, 6, CX‑7 and Tribute from listed years

Who is this for? Bosch 96302 OE Fine Wire Double Iridium spark plugs are aimed at vehicle owners, independent mechanics and fleet managers who want an OEM‑level replacement that prioritizes longevity and consistent ignition performance. Choose these plugs if you need a ready‑to‑install, corrosion‑resistant part that matches manufacturer design requirements and supports modern gasoline and GDI engines without frequent replacement.