BDFHYK Iridium Spark Plugs for Honda Accord 3.0L V6 (2003-2007) — 6-Pack, Fine Iridium Electrodes

BDFHYK 4504 iridium spark plugs are a six-pack replacement set engineered to restore consistent ignition and reliable performance for Honda Accord 3.0L V6 models from 2003 to 2007.

These BDFHYK iridium spark plugs use fine iridium center electrodes and high-density ceramic insulators to deliver stable spark delivery and long service life. Manufactured to meet OE standards and produced by a TS16949 certified facility, the 4504 (PK20TT equivalent) plugs are offered as direct-fit replacements for compatible vehicles. Verify fitment with your vehicle year, make, model and OE part number before purchasing.

How do these plugs improve ignition compared to worn originals?

The ultra-fine iridium center electrode requires less voltage to create a strong, concentrated spark, which helps ignition occur more quickly and consistently. High-density ceramic insulators maintain electrical isolation and resist heat-related breakdown, preserving spark quality over time.

• Iridium center electrode for focused, reliable sparks
• Isostatic ceramic insulator for better heat tolerance and insulation
• Manufactured to OE specifications for fit and function
• Sold in a 6-pack to replace all cylinders in a V6 engine

Will these fit my vehicle and how do I confirm compatibility?

The BDFHYK 4504 plugs are compatible with Honda Accord 3.0L V6 models from 2003–2007 and are comparable to OE part numbers like PK20TT. However, several other vehicles use related part numbers, so it's important to confirm before installation.

• Check your vehicle's year, make, model and engine size
• Compare the OE spark plug part number with 4504 or PK20TT equivalents
• Refer to the owner’s manual or a parts database for cross-reference
• Contact fitment support if uncertain about multi-model compatibility

What durability and performance features should I expect?

These plugs are designed for longevity and consistent performance under typical driving conditions. Built by a TS16949 certified manufacturer, they meet industry quality standards and use materials intended to resist wear and maintain stable operation.

• Fine iridium electrodes that resist erosion longer than standard plugs
• OE-standard construction and testing from a certified factory
• Durable insulators that withstand thermal cycling and vibration
• Six-pack supply to replace the full V6 ignition set at once

How easy is installation and what should I prepare?

Installation is straightforward for anyone comfortable with basic automotive tasks; the plugs are direct-fit for compatible engines. Use the correct torque, anti-seize and a gap check if required to ensure proper seating and long-term reliability.

• Confirm correct torque specification for your engine before tightening
• Inspect ignition coils and boots for wear during replacement
• Use a torque wrench and follow manufacturer torque/gap guidance
• Replace all six plugs in a V6 at the same time for balanced performance

Who is this for: The BDFHYK 4504 iridium six-pack is aimed at owners and mechanics who need an OE-quality, long-lasting spark plug replacement for Honda Accord 3.0L V6 models (2003–2007) or other compatible vehicles. It's appropriate for DIY enthusiasts, independent shops, and fleet managers who want consistent ignition performance and reduced maintenance frequency compared with conventional plugs. Always confirm part compatibility with your vehicle’s specifications before purchase.