Autolite AR3910X Racing Spark Plug

Surface-gap racing plug commonly specified for Briggs & Stratton LO206 kart engines. Cold racing heat range; surface-gap design. Autolite Racing plugs use a cut-back ground electrode, nickel plating, and a high-alumina ceramic insulator. Verify the engine builder's specified plug and gap before installation.

Draft catalog item. Confirm dealer cost, current availability, fitment, plug gap, and physical inventory before publication.