Spark plug · Autolite
Equivalents for the Autolite spark plug B4X
Meet the Autolite B4X spark plug. Compare its 256 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Buy this spark plug Autolite B4X — best retailers
Partner links: a purchase made through these links may earn us a commission, at no extra cost to you.
What can replace a Autolite B4X spark plug?
The Autolite B4X is interchangeable with: Bosch M5A, Champion D6, Denso M14, Bosch M8A, Bosch M10A, Bosch M4A2. These spark plugs share the same mounting (thread, seat) and heat range.
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.