Autolite AP5324 Platinum Spark Plug

The Autolite AP5324 Platinum Spark Plug delivers superior performance and extended service life for a wide range of engine applications. Engineered with a platinum center electrode firing tip, this spark plug provides improved durability compared to standard copper plugs while reducing gap erosion for longer-lasting performance.

Key Features:

• Platinum firing tip prevents gap erosion and extends plug life
• Necked-down center electrode fires quicker and cleaner with less voltage for easier starts and better acceleration
• High nickel alloy side electrode maintains precise gap and resists electrical and chemical wear
• High alumina ceramic insulator provides superior thermal conductivity and insulation strength
• Multi-rib insulator design prevents flash-over
• Nickel-plated shell offers corrosion resistance for extended durability
• Yttrium-enhanced ground electrode delivers superior heat transfer
• Leak-proof, heat-fused resistor for added stability

This platinum spark plug offers improved fuel efficiency, smoother starts, and fewer misfires compared to standard copper plugs. The advanced design reduces gap erosion to ensure consistent performance throughout the plug's service life. Replaces OEM part numbers including Jeep HR10HC, 446, 4505, 5018, and 5614001.