Not all spark plug brands are created equal. The market includes genuine OEM-quality manufacturers, solid aftermarket suppliers, and low-quality generic brands that can cause more problems than they solve. Here's how to navigate the choices.
Brands You Can Trust
NGK
The world's largest spark plug manufacturer and the OEM supplier for more vehicle brands than any other company. Consistent quality across all product lines from copper through laser iridium. The benchmark of the industry.
Champion
Over 100 years of spark plug manufacturing. Strong OEM relationships with Chrysler/Stellantis. Competitive quality to NGK at slightly lower price points on equivalent product lines.
ACDelco (for GM vehicles)
GM's genuine parts brand. OEM specification for all modern GM engines. Use in GM vehicles without reservation.
Motorcraft (for Ford vehicles)
Ford's genuine parts brand. OEM specification for all modern Ford engines. The safe choice for any Ford application.
Autolite
Reliable American brand with a broad fitment catalog. Good value, particularly for older domestic vehicle applications.
Brands to Be Cautious With
Generic, no-name, or obscure brands — particularly those sold at unusually low prices from third-party online marketplace sellers — can be inconsistent in quality. Some are outright counterfeit versions of NGK or Champion plugs in deceptive packaging.
How to Avoid Counterfeits
- Buy from established suppliers, not random marketplace third parties
- Genuine NGK plugs have laser-etched part numbers and consistent markings
- If the price seems too good to be true, it probably is
Shop genuine NGK, Champion, ACDelco, and Motorcraft plugs at Texan Supply — authentic parts, free shipping.