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Autolite Copper Core Spark Plugs 66 Plug, Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

SKU: ATL66

Spark Plugs

Autolite Copper Core Spark Plugs 66 Plug, Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

SKU: ATL66

Spark Plugs
A$15.33
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Description

Autolite copper core spark plugs feature a cold-formed steel shell with precision-rolled threads, a full copper core electrode for better performance, and a one-piece terminal post to add strength. The ignition plugs use a copper-glass seal that bonds the insulator and terminal post center electrode together. This ensures full voltage at the spark gap and a 100 percent leak-proof, gas-tight seal. Autolite features an extensive application guide to cover just about everything with an internal combustion engine. Keep your engine running smoothly and reliably with Autolite replacement copper core spark plugs.

Part Type

Spark Plugs

Data: v4.2 - Upd: 2026-09-27 13:16:52

Specifications

Product Attributes - Brand
Autolite
Product Attributes - Manufacturer's Part Number
66
Product Attributes - Part Type
Spark Plugs
Product Attributes - Product Line
Autolite Copper Core Spark Plugs
Product Attributes - UPC
00009100000668
Product Attributes - Spark Plug Thread Size
14mm
Product Attributes - Spark Plug Reach (in.)
0.750 in.
Product Attributes - Spark Plug Reach (mm)
19.05mm
Product Attributes - Manufacturer Heat Range
6
Product Attributes - Shorty Spark Plug
No
Product Attributes - Resistor
Yes
Product Attributes - Electrode Tip Material
Copper
Product Attributes - Electrode Core Material
Copper
Product Attributes - Center Electrode Type
Projected
Product Attributes - Spark Plug Seat Style
Gasket
Product Attributes - Wrench Diameter
13/16 in.
Product Attributes - Ground Strap Quantity
One
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Autolite
StreetFX SKU atl66
SFX Item ID 5177393
Supplier Item Code 5177393
Manufacturer SKU 66
Manufacturer UPC N/A
Alternative References 14mm

Compatibility

Application Data
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1965
    Ending Year1965
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeL
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1965
    Ending Year1965
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeL
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1965
    Ending Year1965
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Engine VIN CodeL
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1965
    Ending Year1965
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Engine VIN CodeL
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CID287
    CC4703
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Application NotesCopper Spark Plug
    Engine VIN CodeN
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CID287
    CC4703
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Application NotesCopper Spark Plug
    Engine VIN CodeN
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CID287
    CC4703
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Engine VIN CodeN
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CID287
    CC4703
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Engine VIN CodeN
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.3
    CID199
    CC3261
    Engine FamilyAMC L6 GAS
    Engine Size3.3L/199
    Application NotesCopper Spark Plug
    Engine VIN CodeA
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.3
    CID199
    CC3261
    Engine FamilyAMC L6 GAS
    Engine Size3.3L/199
    Application NotesCopper Spark Plug
    Engine VIN CodeA
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.3
    CID199
    CC3261
    Engine FamilyAMC L6 GAS
    Engine Size3.3L/199
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Engine VIN CodeA
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.3
    CID199
    CC3261
    Engine FamilyAMC L6 GAS
    Engine Size3.3L/199
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Engine VIN CodeA
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeM
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeM
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Engine VIN CodeM
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Engine VIN CodeM
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeP
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Application NotesCopper Spark Plug
    Engine VIN CodeP
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Engine VIN CodeP
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeL6
    Liter3.8
    CID232
    Engine FamilyAMC L6 GAS
    Engine Size3.8L/232
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Engine VIN CodeP
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Liter4.7
    CID287
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Application NotesCopper Spark Plug
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Liter4.7
    CID287
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Application NotesCopper Spark Plug
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Liter4.7
    CID287
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Extended Application InformationGap .035 (in)
    Application NotesCopper Resistor
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Liter4.7
    CID287
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/287
    Extended Application InformationGap .035 (in)
    Application NotesCopper Spark Plug
    Fuel TypeGAS
    RegionUSA
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    Submodel880
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Liter4.7
    CID290
    CC4753
    Engine FamilyAMC V8 GAS
    Engine Size4.7L/290
    Application NotesCopper Spark Plug
    Engine VIN CodeH
    Fuel TypeGAS
    RegionUSA

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