Autolite® 4265 Copper Core Spark Plug. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration for your Evo Big Twin or Shovelhead.
- Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
- Multi-rib insulator reduces danger of "flash-over"
- One-piece terminal post adds strength
- Resistor reduces radio frequency interference (RFI) and electrode erosion
- Cold-formed steel shell precision rolled threads
- Full copper core electrode provides better performance in all conditions
Spark plugs sold each.
- 1200cc Shovelhead 1975/Later with points (.025 Gap). Replaces HD Code 5A6A & Replaces HD# 32312-78A
- 1340cc Shovelhead Late 1977/1981 with electronic ignition & Evolution 1984/Later with electronic ignition (0.40 Gap). Replaces HD Code 5R6A & Replaces HD# 32311-83