How can you tell a fake Denso?

How can you tell a fake Denso?

A genuine DENSO spark plug should have a uniform insulator shape, be white in colour, and the width of the ground electrode should be consistent. Poor quality welding is something to look out for, while spark plugs with ground electrode chips made from poorer materials should also be avoided.

Are Denso Iridium TT plugs good?

DENSO Iridium TT spark plugs optimize power output like never before while delivering more complete combustion for superior fuel economy – and they are designed to last well beyond 100,000 miles – that is a winning combination! That’s it for the TT spark plugs.

Is Denso a good plug?

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 Denso plugs shrinks more than an NGK. For this reason, Denso plugs do not last longer than NGK units, but they are better at producing powerful sparks.

How do you spot a fake Denso Spark Plug?

The fake was installed and run for about 150 miles.

1. FAKE: Bolt surface ~1mm shorter/thinner than genuine.
2. FAKE: Electrode wrong color.
3. FAKE: Electrode slightly too large, genuine electrode is very slim.
4. FAKE: Gap out of spec.
5. FAKE: DENSO JAPAN engraving on metal jacket between threads and bolt is thin and weak.

Are Denso spark plugs made in China?

All DENSO Spark Plugs are manufactured in Japan, Indonesia, China and USA. If a part claims to be a DENSO component but has been manufactured outside of these areas, then it is not genuine. Always check, and if in doubt, call your local DENSO representative who can advise.

Who owns Denso?

Toyota
Toyota Industries
Denso/Owners

After becoming independent from Toyota Motor, the company was founded as Nippon Denso Co. Ltd. (日本電装株式会社, Nippon Densō Kabushiki-Gaisha) in 1949. About 25% of the company is owned by Toyota.