W20EXU

This translates to better fuel efficiency and improved throttle response.
Machine rolled threads prevent seizing or cross threading during installation and removal
100% pre-fired to assure the highest quality possible
Purified alumina powder insulator provides exceptional strength and thermal conductivity
Five rib insulator prevents flashover
Copper-glass seal bonds center electrode and insulator for a gas-tight seal

Shell

• Thread Size: 14mm
• Thread Pitch: 1.25mm
• Seat Type: Gasket
• Reach: 19mm (3/4″)
• Hex Size: 13/16″ (21mm)
• Terminal Type: Solid
• Overall Height: JIS
• Gap: .031″ (0.8mm)