Denso Spark Plug Iridium TT - 4705

True Denso. They have worked great since I put them on my 07 IS250 in August 2024.

like oem

I installed these and did not adjust the gap. I know, I know, these are gapped .040 and the manual says .032. No check engine light, truck runs fine and I get the same fuel mileage as before. Great price.

As described. OEM quality product.

Though my car and motorcycle are listed with Amazon, additionally, with an extreme schedule at 69 and an invalid wife and having to work Door Dash to supplement S.S.I. I tried to cram oil and coolant change with cabin filter and service my K&N air filter with a new dash cam to boot plus plugs at 106,000 miles, Though I crawl on the ground to do my own work as is needed, these plugs I bought did not fit in my car. I tried to do all of this as my energy and schedule permitted on 5/21/25 which put me 2 days past my return eligibility. So I had to plop down $70 more at O'Reilly's Auto Parts to finish the job yesterday 5/21/25. Responsibility to get out and do the job within 30 days of delivery should not be the issue. With whom the fault lies re: the ordering of spark plugs should also not be the issue either. If we were of child bearing years should I make a mobile with these plugs to amuse our new baby? If they are the wrong plugs I should be able to return them for a refund as long as they are (a) in new condition. (b) have undamaged packaging. (c) have not been replaced with "New & Improved" making these plugs obsolete. I want a refund. That's AllFOLLOW UP. 5/24/25: After several attempts to arrange a funded return I was speedily assisted through Amazons chat customer service. The person who helped me lent a listening ear and the reasons that I could not just stop what I was doing the learn that I had the wrong plugs. Within ten minutes my situation was resolved. Thanks Amazon & Allan!

I installed these on a 2018 RX 350 at 60k miles. Not an easy project, as you have to remove the intake manifold. What I found was that 3 of the factory installed spark plugs were barely hand tight! I thought the engine ran rough. Anyway, after installing these, it runs perfectly.

Checked the gap on the plugs & found every plug needed adjusting for Lexus RC350 F Sport.

Great match