What size are Denso Spark Plugs?

14mm diameter X 12.7mm length short reach type.

Is DENSO the same as NGK?

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness. The electrode’s diameter in these plugs shrinks more than an NGK. For this reason, Denso plugs won’t last longer than NGK units but they will be better at producing powerful sparks.

How do you size a spark plug?

How Do I Gap a Spark Plug?

  1. Locate a gap gauge or feeler gauge.
  2. Clean the spark plug.
  3. Measure the existing gap of the spark plug.
  4. Make any needed adjustments.
  5. Check the gap again.

Do Denso Spark plugs need to be gapped?

DENSO spark plugs are manufactured with a pre-set gap. With nickel plugs, especially with motorcycles, the gap may need adjustment. Always use a special spark plug gapping tool to change the gap. Do not change the gap on platinum, iridium or twin tip spark plugs, as the fine electrodes may get damaged.

How long do Denso iridium plugs last?

All Denso long life iridium spark plugs are an OEM design, made for a specific engine. Some feature a special resistor or electrode design, depending on the OE requirements. In their OE application, Denso’s long life plugs can last up to 120,000 miles.

Is DENSO a good brand?

The quality of DENSO parts is guaranteed because every component that leaves a DENSO factory has been designed with precision, manufactured to the strictest OE standards or above, and subjected to rigorous safety and performance tests. In the end, it all comes down to quality – that’s what the DENSO name stands for.

What spark plug is recommended for Toyota?

Genuine Toyota (Denso plug) As I mentioned, this is the Denso 3381 K20HR-U11 part. Unlike the NGK, these are made of copper as a material. This means better conductivity, but ultimately you’ll have to change them sooner than the NGK.

Are Denso Spark Plugs made in China?

All DENSO Spark Plugs are manufactured in Japan, Indonesia, China and USA.

Does spark plug size matter?

With varying spark plug gaps and lengths, it’s important to buy the right ones when it’s time to replace yours. Spark plugs that are too long can protrude into the cylinder and cause piston damage. Meanwhile, spark plugs that are too short will struggle to ignite and often cause engine misfiring.