NGK (4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack)

2003 Toyota Tundra fit Good

The NGK (4589) IFR6T-11 Laser Iridium Spark Plugs are a fantastic choice for anyone looking to boost their vehicle’s performance. After installing these in my boat, I immediately noticed smoother idling, quicker starts, and improved throttle response. Overall, these spark plugs deliver high performance and reliability. Highly recommended for any performance enthusiast! 1999 Toyota Epic Lexus V8.

Each plug came ready to install. Just be sure to torque them in properly.

Used these on a 2009 Toyota Matrix 2.4L AZ-FE, perfect fit, same length, same suggested gap already pre-set from factory.

I put these in my 2006 Toyota Tundra 4.7L V8 after having some misfiring issues. It turned out to be the ignition coil, but these spark plugs are running great and are reasonably priced. Much cheaper than paying for the dealership to replace and they're easy to install.

They work fine, just like any other spark plug. You can’t tell the difference when you’re driving between these and the original copper plugs that were OEM. These just lasted longer. With as easy as it is the access the plugs on my tundra, I should have gotten the $5 OEM. Maybe if yours are different to get to, you would want a longer lasting, iridium plug, but not for Tundra drivers. Save the money. Use the OEM plugs Toyota intended. They’re list in the manual NGK or Denso. You’re welcome.

I had 166K on my 2006 Toyota Tundra 4.7L V8 when I installed these plugs. I also did a throttle Actuator service cleaning. I kid you not, my truck runs almost like it’s brand new. Got that lions roar back along with quicker, stronger acceleration. When it’s idling, I can hardly tell it’s running. I plan to get another set of these plugs for my daughters 2004 highlander. I’ll do the same & hope for the same results.

Just what Toyota suggested for the 06 Tundra. Got a little more pep and milage increased slightly.