Autolite Platinum Spark Plug

Description

The Autolite Platinum Spark Plug (AP5263) comes from a brand with more than a century of engineering experience and over 11 billion plugs sold worldwide. Autolite designed and engineered the plug in the USA, centering the design on a full platinum firing tip for reliable, long-lasting ignition. The necked-down center electrode geometry fires quicker and cleaner on less voltage than standard plug designs, contributing to easier starts and improved fuel economy. A high nickel alloy side electrode maintains a precise spark gap to help prevent misfires over extended use. The plug follows OE specifications for a direct, modification-free fit in compatible engines. Autolite backs the brand's engineering with an official NASCAR performance partnership.

Features

• Full Platinum Center Tip: Resists erosion for consistent firing over the plug's lifespan
• Necked-Down Electrode Design: Quicker acceleration thanks to faster, cleaner spark delivery
• High Nickel Alloy Side Wire: Preserves factory-set gap spacing to reduce performance loss
• OE-Spec Design: Matches original equipment dimensions for a direct replacement fit
• Engineered in the USA: Developed with over a century of Autolite ignition expertise
• Official NASCAR Partner: Autolite serves as a NASCAR-recognized performance brand