NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)

My 2004 Titan started to develop a mis-fire yesterday. The last time I had this problem I took it to the dealer who said it was the plugs. I pulled the old plugs and they still looked new (NGK platinum). I got these delivered overnight and installed these new plugs. The truck fired up easily and with a smooth idle and no mis-fire. These saved me a trip to the dealer and probably a decent bill. The back plugs are a little difficult to get at but doable. All plugs were at the proper gap.

excelente producto

Weren’t counterfeit so that was a big plus

Already installed in two cars. Worked and reliable, no misfire and more stable idle. Highly recommended

I have been using these NGK (4469) LFR5AIX-11 Iridium IX spark plugs (pack of 8) for several months now, and they are still performing excellently. From the moment I installed them, I noticed smooth engine operation, reliable starts, and overall improved performance. Even after months of regular use, they continue to deliver consistent ignition and great efficiency with no issues at all. The build quality is outstanding, as expected from NGK, and they hold up very well over time. I am very satisfied with this purchase and would definitely recommend these spark plugs to anyone looking for long-lasting reliability and excellent performance.