D21 Spark Plug


$3.99 EA

It is important to replace worn spark plugs for the safety of your engines. This D21 spark plug has Copper Plus® technology which offers excellent conductivity and heat control. Ideal for a variety of automotive, lawn and garden machinery, or other applicable engines.

Availability: In Stock -

A great addition to your mechanical or automotive engines. This Champion spark plug has a thread diameter of 3/4 in., a reach of 1/2 in., and a hex size of 7/8 in. The Copper Plus® technology consists of having a copper extrusion flow through the center electrode. This allows for improved conductivity and a better heat range and control of heat throughout each use. The nickel alloy center provides this engine spark plug with protection against wear.

  • Champion Spark Plug
  • Champion Copper Plus® technology
  • Copper extrusion into center electrode
  • Nickel alloy center
  • Increased conductivity
  • Excellent heat range and control
  • Thread diameter: 3/4 in.
  • Thread reach: 1/2 in.
  • Hex: 7/8 in.

Champion D21 SPARK PLUG F/SMALL ENGINE in Spark Plugs and Automotive and Batteries at Agri Supply ®.

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CategoryNumber: 1200028