The product is a set of two Bosch Platinum WR5DP spark plugs, designed for use with gasoline fuel. These vintage spark plugs have a 14mm thread diameter, 12V voltage, and a 13/16 inch hex size. They are manufactured in Germany and are considered a performance part. The spark plugs are interchangeable with part numbers RN6YC, 3785, 339, and 4238, and are in new old stock (NOS) condition. The California Prop 65 Warning indicates the potential for cancer and reproductive harm.


Exact item set is shown. New old stock with original packaging. Set weight 5 oz. Made in Germany. No returns on installed items or partial sets. Please review our business policies in our store for information regarding returns, shipping and warranties.