NGK 4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack)

I installed this 6 pack of NGK Iridium IX LFR5AIX-11 plugs in my 2013 Xterra a few years ago and they have been working great ever since. The truck starts quickly, idles smoother, and the throttle response feels more consistent than it did with the worn factory plugs. The plugs arrived well packaged and all looked clean and correctly made. I still checked the gap on each one before install and torqued them to spec. Since then I have had no misfires, no check engine lights, and no weird cold start issues. For the price, the durability has been the best part. I do a mix of city driving and highway trips and they have held up without any drama. If your vehicle calls for this exact plug, I would buy them again. Just make sure you confirm fitment for your engine before ordering.

Good quality sparks plugs. Now they have more than two years and 20'000miles, no problems at all. They still looks brand new. Very happy!

good price and work great

They work great perfect fit they also come already pre gapped.

So far so good

Perfect for my car, I recommend seller and product. I replaced my Nissan Y50/ infinity M35 coil packs and sparkplugs with those in this kit last year and haven't had any issues.

First I would like to thank the seller for selling real NGK Iridium spark plugs. Thank you. I just bought a set from ebay that were fakes and these are legit! The real ones metal and threads look like stainless steel while the fakes look blue! There are several ways to tell the difference but that is plain and clear. I would not hesitate buying these plugs.

Just got around to installing these plugs and they worked like a champ. Plugs in the 4pack did scan as true NGK plugs not knockoffs. The other 2 loose ones were identical. They do appear to come pre-gapped at .042, so I had to open them up a hair to .044 for my 2015 v6 4.0 desert runner. Great value & I Would not hesitate to buy again. *EDIT* For those interested I didn’t know this until I replaced my plugs, but the original plugs were Iridium LASERS. They lasted 150,00 miles, but i see they cost about 3-4x as much. I attached a pic of the originals. NGK makes great plugs and im sure both work fine. Just sharing the information for my fellow DIY’ers!

Excelente producto mi camioneta funciona muy bien

I noticed a slight vibration on idle, which became pronounced when I turned on the AC. There was an oil leak on the plugs due to the seal on the valve cover going bad. I had to change the valve covers (Left, right), and plug these in; the car runs smooth. Will update in a couple of months if there's any change in the performance.

Quick delivery with FEDEX, product as described.

Pre- gap spark plugs. Fits and work well. Been using this brend for ever. Will buy again.

Perfectas, estas bujías son de una calidad increíble. Las recomiendo 100 %.