This really cheesed me off. When my wife's Honda hit 100k two years ago, I swapped the spark plugs with "OEM Honda replacements" purchased on Amazon. They were the right NGK part number, and had the right Honda part number printed on authentic looking Honda boxes. All seemed great. Gapped, installed, and off we went. A few days ago, the car started stumbling. I didn't think plugs could be an issue, since the new ones were OEM and only have about 20k on them. But, I couldn't find anything else wrong, and doing some research on the web, I started reading about people receiving counterfeit Honda spark plugs from Ebay and Amazon dealers.
Sure enough, I pulled the plugs, and the pointed electrodes are melted down to a stub on all four, opening up the gap to over twice the spec. Thankfully, it doesn't look like any part of them broke off, but probably just vaporized.
Looking back, the price was good, but not "too good to be true". Just ordered a new set from Rock Auto, can't wait to get these fakes out.
Careful where you order your plugs!
Sure enough, I pulled the plugs, and the pointed electrodes are melted down to a stub on all four, opening up the gap to over twice the spec. Thankfully, it doesn't look like any part of them broke off, but probably just vaporized.
Looking back, the price was good, but not "too good to be true". Just ordered a new set from Rock Auto, can't wait to get these fakes out.
Careful where you order your plugs!