Originally Posted by sholland96
The NGK part number is LFR7AIX.
The LTR7IX-11(6510) was what the tech support at NGK told me what crossed from there OE line that goes in our trucks to their Iridium IX line. I can call back and check again if you'ld like, but I am just going by what they told me. Their info is below if you want to cantact them as well.
hours: 8:30am - 5:00pm Monday-Friday EST
tel: 1-877-473-6767 prompt #2