The NGK offers a great spark but wears faster. The Bosch is excellent but often twice the price. The Denso 5285 hits the sweet spot for long-life daily driving.
Avoid suspiciously cheap listings on eBay or third-party marketplaces. A fake Denso 5285 will have poor markings, a heavier build, and will fail within 5,000 miles.
Always consult your vehicle’s service manual and confirm fitment before purchasing. Specifications and vehicle applications may change. This article is for informational purposes and does not constitute professional mechanical advice.
At just , Denso’s iridium center electrode is the thinnest available. A smaller electrode requires less voltage to create a spark. This means less strain on your ignition coils and a more reliable spark under high-compression or high-RPM conditions.