Spark Plug Suppressor
InfoVehicle Info Needed
AUTOLITEPART NUMBER: 417-66

Spark Plug Suppressor

$499
ShippingShips on Sep 11, 2026
Lowest PriceLowest Price Guarantee

Copper Core, Loose Terminal Nut
    Spark Plug
  • Suppressor
  • Hex: 13/16"
  • Reach: 3/4"
  • Seat: Gasket
  • Thread Diameter: 14mm
  • Tip: Power
    Autolite copper core spark plugs are guaranteed to deliver quick starts, good fuel economy & smooth acceleration.
Part TypeSpark Plug
Product LineAutolite Copper Core Spark Plugs
BrandAUTOLITE
Package Height1.0
Package Width1.1
Package Length3.5
Weight0.15 PG
Part CategoryReplacement Parts
Seat StyleGasket
Reach (In)3/4"
Center Electrode DesignStandard / Regular
Insulator TypeMid Projection
Thread Size14mm X 1.25
Center Electrode Core MaterialCopper
Drive Size13/16" (21mm)
Gap- Factory Preset.034"/0.9mm
Center Electrode Tip MaterialCopper
Insulator MaterialCeramic
Part FitmentDirect Fit
ResistorResistor
Vendor Part Number66
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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