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Autolite Racing Spark Plugs R103 Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.679 in. Reach, Each

SKU: ATLR103

Spark Plugs

Autolite Racing Spark Plugs R103 Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.679 in. Reach, Each

SKU: ATLR103

Spark Plugs
A$17.85
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

Autolite racing spark plugs are the preferred choice for many professionals. They contain an Yttrium-enhanced alloy, which enables up to 8 percent reduction in side wire temperatures for improved durability and less pre-ignition. These replacement spark plugs are available in colder heat ranges than most plug manufacturers to support modified engines. They feature a cut background electrode, which improves ignitibility and faster flame kernel growth. Autolite racing spark plugs have a nickel plated finish for long life and corrosion resistance. They're available in a variety of styles, sizes, and other options--in universal or vehicle-specific applications.

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
R103
Product Attributes - Part Type
Spark Plugs
Product Attributes - Product Line
Autolite Racing Spark Plugs
Product Attributes - UPC
00009100026644
Product Attributes - Spark Plug Thread Size
14mm
Product Attributes - Spark Plug Reach (in.)
0.708 in.
Product Attributes - Spark Plug Reach (mm)
17.98mm
Product Attributes - Manufacturer Heat Range
3
Product Attributes - Shorty Spark Plug
No
Product Attributes - Resistor
Yes
Product Attributes - Electrode Tip Material
Chromium nickel alloy
Product Attributes - Electrode Core Material
Copper
Product Attributes - Center Electrode Type
Projected
Product Attributes - Spark Plug Seat Style
Tapered
Product Attributes - Wrench Diameter
5/8 in.
Product Attributes - Ground Strap Quantity
One
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Autolite
StreetFX SKU atlR103
SFX Item ID 5177363
Supplier Item Code 5177363
Manufacturer SKU R103
Manufacturer UPC 9100026637
Alternative References ATL-AR103, 14mm

Compatibility

Application Data
  • UniversalNo
    MakeAUDI
    ModelA8
    SubmodelBASE
    Beginning Year1997
    Ending Year1999
    Engine TypeV8
    Engine FamilyAUDI V8 GAS
    Engine Size3.7L/3697cc
  • UniversalNo
    MakeAUDI
    ModelA8 QUATTRO
    SubmodelBASE
    Beginning Year1997
    Ending Year1999
    Engine TypeV8
    Engine FamilyAUDI V8 GAS
    Engine Size4.2L/4172cc
  • UniversalNo
    MakeAUDI
    ModelV8 QUATTRO
    SubmodelBASE
    Beginning Year1990
    Ending Year1991
    Engine TypeV8
    Engine FamilyAUDI V8 GAS
    Engine Size3.6L/3562cc
  • UniversalNo
    MakeAUDI
    ModelV8 QUATTRO
    SubmodelBASE
    Beginning Year1992
    Ending Year1994
    Engine TypeV8
    Engine FamilyAUDI V8 GAS
    Engine Size4.2L/4172cc
  • UniversalNo
    MakeCADILLAC
    ModelSTS
    SubmodelV
    Beginning Year2006
    Ending Year2006
    Engine TypeV8
    Engine FamilyCadillac Northstar V8
    Engine Size4.4L/267
  • UniversalNo
    MakeCADILLAC
    ModelXLR
    SubmodelV
    Beginning Year2006
    Ending Year2006
    Engine TypeV8
    Engine FamilyCadillac Northstar V8
    Engine Size4.4L/267
  • UniversalNo
    MakeDELOREAN
    ModelDMC 12
    SubmodelBASE
    Beginning Year1981
    Ending Year1983
    Engine TypeV6
    Engine FamilyGM V6
    Engine Size2.9L/2850cc
  • UniversalNo
    MakeEAGLE
    ModelMEDALLION
    SubmodelDL
    Beginning Year1988
    Ending Year1989
    Engine TypeL4
    Engine FamilyMitsubishi 4-cylinder
    Engine Size2.2L/132
  • UniversalNo
    MakeEAGLE
    ModelMEDALLION
    SubmodelLX
    Beginning Year1988
    Ending Year1989
    Engine TypeL4
    Engine FamilyMitsubishi 4-cylinder
    Engine Size2.2L/132
  • UniversalNo
    MakeEAGLE
    ModelPREMIER
    SubmodelES
    Beginning Year1988
    Ending Year1988
    Engine TypeV6
    Engine FamilyMitsubishi V6
    Engine Size3.0L/182
  • UniversalNo
    MakeEAGLE
    ModelPREMIER
    SubmodelLX
    Beginning Year1988
    Ending Year1988
    Engine TypeV6
    Engine FamilyMitsubishi V6
    Engine Size3.0L/182
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelBASE
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT 4WD
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT E4WD
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT PLUS
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT PLUS 4WD
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT PLUS E4WD
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelAEROSTAR
    SubmodelXLT SPORT
    Beginning Year1997
    Ending Year1997
    Engine TypeV6
    Engine FamilyFord V6
    Engine Size4.0L/245
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelBASE
    Beginning Year1996
    Ending Year2005
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelLWB
    Beginning Year2002
    Ending Year2003
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX
    Beginning Year1996
    Ending Year2005
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX SPORT
    Beginning Year2004
    Ending Year2005
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelPOLICE INTERCEPTOR
    Beginning Year1996
    Ending Year2005
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281
  • UniversalNo
    MakeFORD
    ModelCROWN VICTORIA
    SubmodelS
    Beginning Year1996
    Ending Year2003
    Engine TypeV8
    Engine FamilyFord modular V8
    Engine Size4.6L/281

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