Denso (4711) IXEH20TT Iridium TT Spark Plug, (Pack of 1)

Installed these to replace the original plugs at 90k. The fit was perfect and they smoothed out a slightly rough idle. Recommended!

Good spark plugs. They are oem replacement. The car has better cold start.

Perfect fit for Corolla LE Eco 2016. Combined with TRQ Engine Ignition Coil Boot Kit Set of 4, it resolved a strange jerking of car. Spark plugs replaced at 140K miles.

The media could not be loaded. After 5,000 miles on the previous spark plugs I bought, and I'm sure I'll use these spark plugs for a very long time, my car breathed right after they were installed.

These plugs are working well in my 2015 Mazda 6 with 75,000 miles. They went in super easy, I didn't even have to remove the wires from the coil packs! The plastic cover over the engine easily pops off, just go easy on it. I used BikeMaster Magnetic Spark Plug Socket Set - 14mm/-- to change them - magnetic spark plug sockets are the best!97,000 Mile Update - 22,000 miles on these plugs so far, no issues. I'll update some time next year when I get more miles on the car.

Good product at the right price

Son las originales de mi carro...

Installed these plugs in my 2014 Mazda 6 with the Skyactiv 2.5 engine at 74,000 miles. Denso is one of my go to brands for spark plugs as I have always had good service from them over the years. The plugs appear to be of great quality and come well packaged with a plastic tube over the electrode area that protects the plug from damage during shipping.This is an easy DIY job on this engine as it only requires a 14mm deep socket and a magnetic pickup tool to get the plug out of the well once it is loose. I did put a little anti-seize on the threads before installing (probably not necessary but makes me feel better.) I used a length of fuel line slipped over the plug to guide the plug down to the head and get the threads started. Torqued to 13 lbs with a torque wrench but can be installed using the "fractional turn after finger tight" method found online.