Spark Plug - Copper Core - 14mm - 0.750 in. reach - Heat Range 2 - 4 Pack

ACCEL copper core u-groove spark plugs deliver high performance to increase engine power.

PART# 0142-4

Not Available Online


ACCEL U-Groove performance spark plugs produce a larger spark for more power at high RPMs. Improves throttle response & fuel economy, less fouling. Purified Alumina insulator prevents arcing. Machine rolled threads protect heads. 035 gap.


  • U-Groove designed for spark delivery
  • Copper core utilized for maximum spark


Emission Code1
Product TypeSpark Plugs


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

*Free Shipping & Handling only offered to the continental US on orders over $100.

Some parts are not legal for use in California or other states with similar regulations.