U-GROOVE ELECTRODE SPARK PLUGS FOR ALL MODELS

The best plug money can buy. Manufactured for your motorcycle exclusively by the most innovative spark plug manufacturer in the world and warranted by Accel. Blister packs of 2 are packaged. Boxes of 10 are individually packaged in protective boxes and the boxes of 24 are not individually packaged.

Features of Spark Plugs:

• U-Groove Ground Electrode: Unique U-Groove develops a larger spark for more complete combustion
• Insulator and Five-Rib Construction: Insulator made of highly purified alumina powder superior in strength and thermal conductivity
• Copper Glass Seal: Glass and copper bond the center electrode to the insulator to ensure a gas-tight seal
• Electric Heat Seal: Ensures a stable heat range
• Copper Core Center Electrode: Copper Core Center Electrode: Copper surrounded by nickel-chrome for superior conductivity
• Machine Rolled Threads: For trouble-free spark plug installation and removal

Accel
Blister Pack of 2 (MFG# 2401)
Fits all Big Twin Cold Plug 1948/1974
Replaces HD Code # 3-4
MFG# 137 (Each)
Replaces HD# 32301-60
.025" Gap
By: HOLLEY PERFORMANCE PRODUCTS,INC.