Champion Spark Plug 821 Spark Plug

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Champion Spark Plug L77JC
• Champion Spark Plug L4G
• Champion Spark Plug L77J
• Champion Spark Plug L77J4
• Champion Spark Plug L77JC4
• Champion Spark Plug L3G
• Bosch W3AC
• Bosch W4A
• Bosch W4A5
• Bosch W4AC
• Bosch W4A2
• Bosch W4A1
• ACDelco M41FF
• NGK 5810
• Autolite 2634
• NGK 3626
• ACDelco M40FFX
• Bosch W4AS
• NGK 2721
• Mercury Marine 33821S
• Mercury Marine 33896329821
• DENSO 4065
• Motorcraft AE091X
• Motorcraft AE901Racing
• Motorcraft AV091X4
• NGK B10HS
• NGK B8HVX
• NGK B9HCS
• NGK B9HS
• NGK B9HS10
• NGK B9HV
• NGK B9HVX
• DENSO W31FS
• Beru Z37

• BUILT-IN NOISE SUPPRESSION -- Modern resistor technology protects sensitive electronics by minimizing electrical interference
• COPPER CORE PRECISION -- Copper core center electrode allows accurate control of heat range, delivering longer life and dependable performance
• CORROSION RESISTANCE -- Coated shell provides corrosion resistance in harsh environments
• DEPENDABLE STARTS -- Engineered for reliable ignition in all weather conditions
• EASY TO INSTALL -- Pre-gapped design simplifies installation
• OE-QUALITY FIT -- Built to meet OE fit, form and function for dependable performance
• Champion© Copper Plus© spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.