Affiliate Disclosure
Last updated: October 17, 2026
In short: BestSparkPlugs earns a small commission when you buy through some of our links. You never pay more, and it never changes our rankings.
Amazon Associates Program
BestSparkPlugs is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, we earn from qualifying purchases.
Other Affiliate Partners
We may also join affiliate programs run by other retailers or parts suppliers. When we do, the same rules on this page apply to those links.
How Affiliate Links Work
Some links on our site are affiliate links. If you click one and make a purchase, the retailer may pay us a commission. The price you pay stays the same whether you use our link or not.
Affiliate links are usually found on buttons such as "Check Price on Amazon" and inside product reviews and buying guides.
Our Editorial Independence
- No brand or retailer can pay to be included in our reviews or rankings.
- Our picks are based on fitment data, manufacturer specs, hands-on testing and value.
- We recommend products we would install in our own engines, even when a different product would pay a higher commission.
- If a product has known problems, we say so, whether or not we earn from it.
Free Products and Samples
Most products we test are bought with our own money. If a brand ever sends us a free sample, we will say so clearly in the review. Free products do not earn better ratings.
Prices and Availability
Product prices and availability are accurate as of the date and time shown and can change at any time. Any price shown on the retailer's site at the time of purchase is the price that applies.
Questions
If you have questions about this disclosure, please contact us. Thank you for supporting BestSparkPlugs. Your purchases help us keep testing and keep our guides free.