Coupon ✔️ Denso (3324) SK16R11 Iridium Spark Plug, Pack Of 1 ✔️

8 reviews for Coupon ✔️ Denso (3324) SK16R11 Iridium Spark Plug, Pack Of 1 ✔️

1. 

   Rated 4 out of 5

   R. Hooper – May 15, 2015

   Great spark plugs, I just installed them on our 2005 Pontiac Vibe 2WD base model (same 1ZZ-FE engine as Toyota Matrix/Corolla), recently acquired with 148k miles. It looks like the plugs had never been changed, visual inspect revealed a good deal of wear (moreso on the ground electrode than the central electrode except for one), but honestly the car was running just fine. I changed the spark plugs along with some other things so that I have more of a baseline of knowledge about where the car’s maintenance stands (very little records came with it).The plugs I pulled out were identical to the new ones, Denso SK16R11, apparently installed without any anti-seize (as they do at the factory). I went really slow when pulling the originals out, being careful not to strip the threads, due to some minor corrosion, giving each plug a slight turn until it stopped squeaking (which was indicative of some looseness, and stopped once the friction generated enough heat…), then let each cool back down while I did other things (transmission fluid change, work on one of the other plugs, etc.), and each one eventually came out just fine. Perhaps I could have taken the originals out more quickly, but was not willing to take the risk with the aluminum heads, and I figure if the originals had been in there for over 10 years and 148k miles, they deserved some respect and patience. They did squeak coming out but I’ve definitely seen worse in other cars.I installed the new ones without anti-seize and they went right in and torqued down to the proper manufacturer’s spec like a breeze. Apparently the special plating on the threads that Denso and NGK talk about on these kinds of plugs that obviates the need for anti-seize works.Car is purring like a kitten, now. 4000 miles on the oil change (conventional oil) and the oil is still amber and still smells like new oil. I’m very impressed with this engine so far.If your car’s owners manual calls for this plug or the NGK equivalent, you cannot go wrong with this plug. Meets manufacturer’s design parameters exactly and a great price through Amazon.

2. 

   Rated 5 out of 5

   Paul R. Haller – January 10, 2020

   I bought my 2006 Prius new. It now has 144000 miles on the odo. I have never tuned the car but noticed my mileage slipping and noticed a slight miss at idle. I decided it was time and ordered these plugs, mass air flow cleaner, PCV, and filters. I couldn’t find my feeler gauge so bought another. I cleaned the engine and hosed off the cleaner paying particular attention around the plugs so when removing no dirt falls into the cylinders. I looked up valve lash and checked that. A little off but close. The plugs needed gapping because they arrived out of their boxes and had been bashed around and into each other within the shipping box during shipment. I put a small dab of anti seize on the threads and torqued down the plugs. With the PCV valve installed, I replaced the filters, cleaned the mass air flow sensor and the throttle valve, and buttoned her up. One of the old pugs lost part of the insulator around the tip of the plug. No wonder I had a miss! Perfect OEM replacement plugs. Car runs better. I’ll have to replace the plugs more often then once every 14 years.

3. 

   Rated 5 out of 5

   eddy buakaew – January 30, 2022

   Came gapped properly. Boxes they come in are super flimsy but the product itself was undamaged.

4. 

   Rated 5 out of 5

   Paul J. – March 20, 2022

   I changed the spark plugs on my Toyota Corolla for the first time, as it just went over 100, 000 miles. My owners manual listed Denso16R11 iridium with a gap of 0.043. This job should have taken 20 minutes, but the number 3 coil plug third left to right))did not want to lift out. After much effort of twisting, and lifting up, I was able remove it. Then gapping each one, then applying spark plug lube on threaded area, I inserted each one, screwing until tight, and then only a 1/4 turn to tighten with ratchet. This high quality Denso iridium are better at producing power sparks. I found these Denso iridium plugs on Amazon, and at a good price.

5. 

   Rated 4 out of 5

   Charlie Goodson – March 26, 2022

   These are OEM for a 2010 Toyota Yaris hatchback. After the very easy installation my rough idle went away and my fuel economy improved by 1. It is very much worth the money considered it is the second pair I have bought in 8 years. I am very happy with them and in about 8 more years I will buy them again.

6. 

   Rated 5 out of 5

   Santos Gonzalez – June 27, 2022

   Muy buen producto

7. 

   Rated 4 out of 5

   Callisto Designs – July 29, 2022

   Fixed my car. Had a error code saying this was the problem. It was. So happy to get it fixed.

8. 

   Rated 4 out of 5

   Justin – August 30, 2022

   Stock replacements same as the ones that came out of the car… good gas mileage… and they work… not much else to say about these