If you ordered a Champion & paid for a champion then you must get a Champion
If you paid by credit card make a complaint to them and ask that they return your payment.
If you bought it on Ebay lodge a complaint
AFAIK Scamazon has no complaint mechanism.
I’d be upset. Those are probably as bad as Torch spark plugs. I’d definitely try to get money back if you bought a Champion one. Watch out buying plugs online. Lots of fakes out there.
Not received a HIPA but almost bought some bootleg NGK's off EBAY until I read that bootleg spark plugs were on the market. I had a lawn boy given to me that would not keep a constant RPM. The previous owner had replaced the governor assembly and had installed a new spark plug. One of those plugs with a "special" shaped electrode for better spark. I checked the governor and it was ok and the plug was clean but no even RPM until I installed a Champion plug from one of my other Lawn Boys. Long story short use the tried and true part.
#5
StarTech
This why I order through the regular distributors and not eBay or Amazon when it comes to spark plugs. I prefer NGK over Champion but there are times that there is no cross. So plugs that are used are specifically made for a particular magneto coil. Briggs has a few of those requirements depending when the engine was made.