CHAMPION SPARK PLUG J11C #511 Replaces: J11 J11J J11JM J12C RJ11 UJ12 XJ11 B2 B4 B210 B410 3210 


  • Champion copper plus small engine plugs resist fouling and provide superior corrosion resistance
  • Feature a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics
  • Engineered to exceed OE designs and maximum durability
  • Designed for easy starting

  • Plug Type: J11C
    Seat Type: Gasket
    Hex Size: 13/16 in (20.64 mm)
    Thread Size:  14 mm
    Thread Reach: 0.375 in
    Installed Height: 2.5 in
    Gap: 0.027-0.033in   (0.69-0.84 mm)
  • Heat Range: 11
    Center Electrode Material: Nickel Copper Alloy
    Ground Electrode Material: Nickel Copper Alloy
    Classification: Champion Copper Plus Small Engine
  • Insulator Material: Zirconia Enhanced
    Resistor Plug: Non-resistor
MPN: J11C #511
UPC: 037551001187

Purchase is for one spark plug.

USA domestic shipments are shipped USPS First Class Mail with Tracking

International shipments are shipped USPS First Class International Mail with Tracking