Champion Spark Plug 121 Spark Plug

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

• Champion Spark Plug RBL8
• Champion Spark Plug RV8C
• ACDelco MR43T
• ACDelco R42T
• ACDelco R43CT
• ACDelco R42CT
• ACDelco R43T
• Motorcraft AF3
• Motorcraft ARF3
• Autolite 136
• Champion Spark Plug BL8
• Motorcraft AF3C
• Motorcraft ASF4C
• Motorcraft ASF3C
• Autolite 144
• Autolite 145
• Bosch 7968
• Bosch HR8AC
• Bosch 7568
• Bosch HR8A
• Motorcraft ARF4
• NGK 2927
• ACDelco 41821
• Mopar 4339492
• DENSO 5038
• NGK B6FS
• DENSO T20RU
• Bosch WA125TR4
• Bosch WA145TR4
• NGK 2405
• Sealed Power ESP055

• 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.