Description
Autolite 766 Copper Core Resistor Spark Plug
Copper Core Electrode: Enhances thermal control and resists fouling
Nickel Alloy Electrodes: Provide extended life and durability
Multi-Rib Ceramic Insulator: Prevents flash-over and misfires
Cold-Formed Steel Shell: Precision-rolled threads for durability
Copper-Glass Seal: Ensures full voltage at the spark gap and leak-proof performance
Designed for Quick Starts: Reliable ignition and consistent combustion
Key Features
- Thread Size:
- 14mm x 1.25
 
 - Reach: 0.679 in (17.25 mm)
 - Seat Type: Tapered
 - Hex Size: 5/8 in (16 mm)
 - Gap: Preset to 0.044 in (1.12 mm)
 - Resistor Value: ~5000 Ohms
 - Center Electrode Core: Copper
 - Center Electrode Tip: Nickel
 - Ground Electrode Tip: Nickel
 - Insulator Material: High alumina ceramic
 - Shell: Nickel-plated for corrosion resistance
 
Refer to original manufacturer for any applicable warranties.






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